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1997 data sheet the mark shows major revised points. m pd6466 mos integrated circuit document no. s10991ej2v2ds00 (2nd edition) date published november 1998 n cp(k) printed in japan on-screen character display cmos ic for 512-character, 12-row, 24-column, camera-contained vcr the information in this document is subject to change without notice. the m pd6466 is a cmos lsi for on-screen character display, and can be used in combination with a microcomputer to display the tape counter, time, and date in the view finder of a video camera, or the time of a video tape, messages such as dates on pictures, and channel number on a tv screen. characters are displayed in 12 (horizontal) by 18 (vertical) dots. two or more characters can be combined to display kanji (japanese characters) and symbols. this lsi supports color view finders and is provided with three sets of character output signals (rgb output: for color view finder, v c1 output: for recording (or monitor pin), v c2 output: for monitor pin (or recording)). in addition, the m pd6466 is also equipped with a power-on clear function and a video ram batch clear command so that it can mitigate the workload of the microcomputer. the command format of this lsi is identical to that of the existing models, the m pd6461 and 6462, and therefore, the m pd6466 is compatible with the existing models, and the software resources for the existing models can be used. features ? number of display characters : 12 rows, 24 columns (288 characters) ? types of character : 512 types (rom). changeable by using mask code option. ? character size : can be expanded up to four-fold in vertical and horizontal directions independently, in units of lines. ? number of character colors : 8 colors ? framing : framing or no framing, or white or black framing selectable in screen units. ? dot matrix : 12 (horizontal) 18 (vertical) dot configuration. no gap between adjacent characters. ? blinking : blinking can be turned on/off in character units. the blinking ratio is 1:1. the blinking frequency can be selected from about 1 hz, about 2 hz, and about 0.5 hz in screen unit. ? character color reversing function : the color of the character and that of the background can be reversed. ? character left and right reverse : left and right can be reversed for display in character units. ? background : no background, blank background, or filled background selectable in screen units. ? blue back function : blue or white can be selected as the background. ? signal output : 3 sets (output (1) r, g, b + blk/v c1 + v blk1 /v c2 + v blk2 and output (2) r + r blk /b + b blk /g + g blk selectable by command) when output (1) is selected, v c1 and v c2 outputs can be selected from three types. ? video ram data clear : implemented by video ram batch clear command or by clear function on power-on. ? interface with microcomputer : 8-bit variable word length serial input (lsb first/msb first selectable by command) ? supply voltage : supports low voltage (2.7 to 5.5 v) ? process : cmos low power consumption
2 m pd6466 ordering information part number package m pd6466gs-xxx 20-pin plastic shrink sop (300 mil) m pd6466gt-xxx 24-pin plastic sop (375 mil) remarks 1. necs standard model is the m pd6466gs-001/gt-201. for the details of the character generator rom, refer to 5. character patterns . 2. xxx indicates a rom code suffix.
3 m pd6466 cmdct data input shift register data clk cs instruction decoder data selector ... control signals display control register character size register horizontal address register write address counter horizontal size counter horizontal position counter horizontal address counter vertical address register oscilla- tion circuit synchro- nization protection circuit test v dd gnd pcl character data 9 bits 288 words color data 3 bits 288 words blink data 1 bit 288 words reverse data 1 bit 288 words output specification data 1 bit 288 words video ram back- ground control data register hsync vsync vertical position counter vertical size counter output controller v r v blk v b v g blk2 v c2 blk1 v c1 (g blk ) (r blk ) (b blk ) character generator rom 12 18 bits 512 words osc in osc out vertical address counter block diagram remark signals in ( ) are set by using an initial status setting command (rgb + rgb compatible blanking).
4 m pd6466 pin configuration (top view) 20-pin plastic shrink sop (300 mil) m pd6466gs-xxx clk 1 cs 2 data 3 pcl 4 v dd 5 cmdct 6 osc out 7 osc in 8 test 9 gnd 10 20 19 18 17 16 15 14 13 12 11 hsync vsync v b v g v r v blk (b blk ) v c2 (g blk ) blk2 (r blk ) v c1 blk1 24-pin plastic sop (375 mil) m pd6466gt-xxx clk 1 cs 2 n.c. 3 data 4 pcl 5 v dd 6 cmdct 7 osc out 8 osc in 9 test 10 24 23 hsync vsync n.c. v c1 gnd n.c. 11 12 22 21 20 19 18 17 16 15 14 13 blk1 n.c. v b v g v r v blk (b blk ) v c2 (g blk ) blk2 (r blk ) remarks 1. xxx indicates a rom code suffix. 2. signals in ( ) are set by using an initial status setting command (rgb + rgb compatible blanking).
5 m pd6466 b blk : blanking b blk1, blk2 : blanking output 1, 2 clk : clock cmdct : command control cs : chip select data : data input g blk : blanking g gnd : ground hsync : horizontal synchronous signal input n.c. : no connection osc in : oscillator input osc out : oscillator output pcl : power-on clear r blk : blanking r test : test v b : character signal output v blk : blanking signal output for v r , v g , v b v c1 , v c2 : character signal output 1, 2 v dd : power supply v g : character signal output v r : character signal output vsync : vertical synchronous signal input
6 m pd6466 pin functions pin no. note 1 pin pin name note 2 function symbol note 2 1 clk clock input this pin inputs a clock for reading data. data input to the data pin is read at the rising edge of this clock. 2 cs chip select input serial transfer can be accepted if this pin is made low. 3 (4) data serial data input this pin inputs control data. data is read in synchronization with the clock input to the clk pin. 4 (5) pcl power-on clear this pin, when high, initializes the internal circuitry of the ic on power application. 5 (6) v dd power supply this pin supplies power. 6 (7) cmdct command specification this pin selects whether a command is input with the lsb first or msb select first. when this pin is low, the command is input with the lsb first; when it is high, the command is input with the msb first. to input the command with the lsb first, this pin may be opened. 7 (8) osc out lc oscillation i/o these are an input and an output pin for an oscillation circuit that 8 (9) osc in (osc in : external clock generates a dot clock. input) a coil and capacitor for oscillation are connected to these pins. (if the input of an external clock is selected by the initial status setting command, an external clock (clock synchronized with hsync) is input. osc out is opened at this time.) 9 (10) test test pin this pin is used to test the ic. normally, connect this pin to gnd. when the test pin is connected to gnd, the test mode is not set. 10 (11) gnd ground pin connect this pin to gnd of the system. 11 (14) blk1 blanking signal output 1 this pin outputs a blanking signal to cut the video signal. it supports output of v c1 , and is high-active. (if rgb compatible blanking is selected by a command, this pin outputs the logical sum of r blk , g blk , and b blk .) 12 (15) v c1 character signal output 1 this pin outputs a character signal, and is high-active. (if rgb compatible blanking is selected by a command, this pin outputs the logical sum of v r , v g , and v b .) 13 (16) blk2 blanking signal output 2 this pin outputs a blanking signal to cut the video signal. it supports (r blk ) (blanking r) output of v c2 , and is high-active. (this pin outputs a blanking signal supporting output of v r and is high-active.) 14 (17) v c2 character signal output 2 this pin outputs a character signal, and is high-active. (g blk ) (blanking g) (this pin outputs a blanking signal supporting output of v g and is high-active.) 15 (18) v blk blanking signal output this pin outputs a blanking signal to cut the video signal. it supports (b blk ) (blanking b) output of v r , v g , and v b , and is high-active (this pin outputs a blanking signal supporting output of v b and is high-active). 16 (19) v r character signal output this pin outputs a character signal, and is high-active. 17 (20) v g 18 (21) v b 19 (23) vsync vertical sync signal input this pin inputs a vertical sync signal. input a negative sync signal. 20 (24) hsync horizontal sync signal input this pin inputs a horizontal sync signal. input a negative sync signal. (3, 12, 13, 22) n.c. vacant vacant pin notes 1. ( ): pin numbers of m pd6466gt-xxx 2. signals in ( ) are set by the initial status setting command (rgb + rgb compatible blanking).
7 m pd6466 contents 1. initial status setting ................................................................................................................. 9 1.1 initial status setting ................................................................................................................. 9 1.2 application block diagram .................................................................................................... 11 1.3 display with rgb + v c1 + v c2 pins ........................................................................................ 12 1.3.1 character signal output with output select option a ..................................................................... 15 1.3.2 character signal output with output select option b ..................................................................... 16 1.3.3 character signal output with output select option c ..................................................................... 17 1.3.4 displaying characters specified by v c2 .......................................................................................... 18 2. command ............................................................................................................................... ..........19 2.1 command format ...................................................................................................................19 2.2 command list .........................................................................................................................19 2.3 power-on clear function ......................................................................................................21 3. details of commands ................................................................................................................ 22 3.1 video ram batch clear command ....................................................................................... 22 3.2 display control command ..................................................................................................... 23 3.3 background color/frame color control command ........................................................... 26 3.4 3-channel independent display on/off command .......................................................... 27 3.5 character color reverse on/off command ..................................................................... 28 3.6 blue back on/off command ............................................................................................... 30 3.7 character address bank select command .........................................................................31 3.8 output switch control command .........................................................................................32 3.9 character display position control command ................................................................... 34 3.10 write address control command .........................................................................................36 3.11 output pin control command ............................................................................................... 37 3.12 character size control command ........................................................................................ 38 3.13 3-channel background control command .........................................................................39 3.14 initial status setting command ............................................................................................43 3.15 display character control command .................................................................................. 45 3.16 test mode ............................................................................................................................... ..48 4. transferring commands ........................................................................................................49 4.1 1-byte command .....................................................................................................................49 4.2 2-byte command .....................................................................................................................49 4.3 2-byte successive commands ............................................................................................. 50 4.4 successive input of command ............................................................................................. 51 4.4.1 when 2-byte successive command end code is not used ........................................................... 51 4.4.2 when 2-byte successive command end code is used ................................................................. 51 5. character patterns ................................................................................................................. 52 6. electrical characteristics .................................................................................................60 7. application circuit example .................................................................................................65
8 m pd6466 8. package drawings ......................................................................................................................66 9. recommended soldering conditions ................................................................................68
9 m pd6466 1. initial status setting 1.1 initial status setting the m pd6466 selects the following parameters that are selected by mask code options with the m pd6461 and 6462, by using an initial status setting command. parameter selected by: (1) dot clock lc oscillation external clock input (2) vertical display start position 3-row unit setting 9-row unit setting (3) pin selection rgb + v c1 + v c2 rgb + rgb compatible blk (rgb + 3blk) (4) output selection option a option b option c (5) character color reversal black character white character specification selection (6) function selection character blinking character left/right reversal (1) dot clock to select a dot clock for character display. if an external clock input is selected, refer to external clock input in 6. electrical characteristics . (2) vertical display start position to select the setting accuracy of the vertical display start position of the character display area. in 3-row units, the vertical display start position can be set more finely than in 9-row units. (3) pin selection to select the setting of the output pins. when rgb + v c1 + v c2 is selected, character signals are output from pins v r , v g , v b , v blk , v c1 , blk1, v c2 , and blk2. when rgb + 3blk is selected, character signals are output from pins v r , v g , v b , r blk , g blk , b blk , v c1 , and blk1. when rgb + v c1 + v c2 is selected with a video camera with a color view finder, colored characters can be displayed in the view finder. when rgb + 3blk is selected, character signals can be separated color specification. (4) output selection to set the output format of the character signal where the setting of the output pin is rgb + v c1 + v c2 (setting the output format of the character signal is invalid where the setting of the output pin is rgb + 3blk). when an on-screen character display ic is used in a video camera, some items of information (such as date and title) are displayed on the video tape, and the others (such as battery alarm, focus, and counter indication) are only displayed in the view finder. the m pd6466 can select these items of information in row or half-row units by using the output pin. select the output format from three types: option a, option b, and option c (when 3blk is selected, however, be sure to select option b). (5) character color reversal specification selection to select the specifications when the character color is reversed (valid only for rgb output). ? black character: outputs an area with dots in black and prohibits framing. ? white character: outputs an area with dots in white and prohibits framing.
10 m pd6466 (6) function selection to select either of the character blinking or character left/right reversal functions. the default setting assumed on power application is as follows: (1) dot clock = lc oscillation (2) vertical display start position = 3-row unit (3) pin selection = rgb + v c1 + v c2 (4) output selection = option b (5) character color reversal specification selection = black characters (6) function selection = character blinking
11 m pd6466 1.2 application block diagram example of application in a video camera (1) (in the case of rgb + v c1 + v c2 ) (when v r , v g , v b , v blk , v c1 , blk1, v c2 , and blk2 pins are used) data clk cs pcl hsync vsync rgb v c2 v c1 character mixing circuit video video+character character mixing circuit color view finder recording block (deck block) pd6466 rgb : v r , v g , v b , v blk v c1 : v c1 , blk1 v c2 : v c2 , blk2 character mixing circuit monitor pin block (video signal output) m microcontroller example of application in a video camera (2) (rgb + 3blk (rgb compatible blk)) (when v r , v g , v b , r blk , g blk , and b blk pins are used) data clk cs pcl hsync vsync r g b video video+character character mixing circuit color view finder recording block (deck block) monitor pin block (video signal output) pd6466 r : v r , r blk g : v g , g blk b : v b , b blk video video character mixing circuit character mixing circuit m microcontroller
12 m pd6466 1.3 display with rgb + v c1 + v c2 pins the m pd6466 has three output options: a, b, and c. the following figure shows the output with each option specified (the output is controlled by an output pin control command (refer to 3.11 output pin control command )). output pin control command (with msb first (the command is input from the msb (d15).) (because this command is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively.) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 10011100od1od000ar3ar2ar1ar0 (msb) (lsb) row specification bits function specifies row 0. specifies row 1. specifies row 11. setting prohibited ar3 0 0 1 ar2 0 0 0 ar1 0 0 1 ar0 0 1 1 output pin control bits pin output v c1 : outputs specified row, v c2 : fixed to low level v c1 : fixed to low level, v c2 : outputs specified row od1 0 0 od0 0 1 option a output pin control bits pin output v c1 : outputs all rows, v c2 : fixed to low level v c1 : outputs all rows, v c2 : outputs specified row od1 0 0 od0 0 1 option b output pin control bits pin output v c1 : outputs columns 0-23, v c2 : fixed to low level v c1 : outputs columns 0-11, v c2 : outputs columns 12-23 v c1 : outputs columns 12-23, v c2 : outputs columns 0-11 v c1 : fixed to low level, v c2 : outputs columns 0-23 od1 0 0 1 1 od0 0 1 0 1 option c ? row specification control specify whether the character signal is output to the v c1 or v c2 pin in row units (or 12-column units). ? output pin control the output of the v c1 and v c2 pins can be selected from three types, a, b, and c, by using the initial status setting command (the blanking signal is output in the same manner).
13 m pd6466 output with option a output pin control bit od1 od0 pin output 00v c1 : outputs specified row, v c2 : fixed to low level (1) 01v c1 : fixed to low level, v c2 : outputs specified row (2) output character signal background signal (with background specified) in the case of (1) v c1 output outputs character signal resulting from outputs background signal to area other oring v r , v g , and v b pins (specified row). than that specified by v c2 . however, character specified by v c2 is not output. v c2 output fixed to low level (specified row) outputs background signal to only area specified by v c2 in the case of (2) v c1 output fixed to low level (specified row) outputs background signal to area other than that specified by v c2 v c2 output outputs character specified by v c2 outputs background signal to only area (specified row) specified by v c2 output with option b output pin control bit od1 od0 pin output 00v c1 : outputs all rows, v c2 : fixed to low level (1) 01v c1 : outputs all rows, v c2 : outputs specified row (2) output character signal background signal (with background specified) in the case of (1) v c1 output outputs character signal resulting from outputs background signal to area other oring v r , v g , and v b pins (all rows). than that specified by v c2 . however, character specified by v c2 is not output. v c2 output fixed to low level (specified row) outputs background signal to only area specified by v c2 . in the case of (2) v c1 output outputs character signal resulting from outputs background signal to area other oring v r , v g , and v b pins (all rows). than that specified by v c2 . however, character specified by v c2 is not output. v c2 output outputs character specified by v c2 outputs background signal to only area (specified row). specified by v c2 .
14 m pd6466 output with option c output pin control bit od1 od0 pin output 00v c1 : outputs columns 0-23, v c2 : fixed to low level (1) 01v c1 : outputs columns 0-11, v c2 : outputs columns 12-23 (2) 10v c1 : outputs columns 12-23, v c2 : outputs columns 0-11 (3) 11v c1 : fixed to low level, v c2 : outputs columns 0-23 (4) output character signal background signal (with background specified) in the case of (1) v c1 output outputs character signal resulting from outputs background signal to area other oring v r , v g , and v b pins (columns 0-23 of than that specified by v c2 . specified row). however, character specified by v c2 is not output. v c2 output fixed to low level (specified row) outputs background signal to only area specified by v c2 . in the case of (2) v c1 output outputs character signals resulting from outputs background signal to area other oring v r , v g , and v b pins (columns 0-11 of than that specified by v c2 . specified row). however, character specified by v c2 is not output. v c2 output outputs character specified by v c2 (columns outputs background signal to only area 12-23 of specified row). specified by v c2 . in the case of (3) v c1 output outputs character signal resulting from outputs background signal to area other oring v r , v g , and v b pins (columns 12-23 of than that specified by v c2 . specified row). however, character specified by v c2 is not output. v c2 output outputs character specified by v c2 (columns outputs background signal to only area 0-11 of specified row). specified by v c2 . in the case of (4) v c1 output fixed to low level (specified row) outputs background signal to area other than that specified by v c2 . v c2 output outputs character specified by v c2 (columns outputs background signal to only area 0-23 of specified row). specified by v c2 . the signal of the character specified by v c2 is not output from the rgb or v c1 output channel, but the background is output as described above. when the m pd6466 is set to output rgb, v c1 , or v c2 signal, the following setting can be performed as well as the above output control. ? independent on/off control of character display of each channel (3-channel independent display on/off command) ? independent background control of each channel (3-channel background control command)
15 m pd6466 1.3.1 character signal output with output select option a option a whether a signal is output to the character signal output pin v c1 in row units can be specified by the od0 bit that selects an output pin. the v c2 output can be specified in character units, and the v c1 outputs only characters for which the v c2 in the rows for which the od0 bit is set to 1. the character specified by v c2 is not output to the rgb and v c1 output. display example (to use v c2 channel for information for recording) rec tape batt 1/1000 0000 am 11:30 1991. 2.22 yokohama bay bridge displayed information such as alarm and tape counter recording information such as date and title example of view finder display (rgb and v c2 output) output example rec tape batt 1/1000 0000 rgb character output (color character) character output of v c2 channel (specified row, character specified by v c2 ) am 11:30 1991. 2.22 yokohama bay bridge rec tape batt 1/1000 0000 character output of v c1 channel (specified row) ?character information on the row specified by clearing the od0 bit to 0 is output from v c1 . however, the characterspecified by v c2 is not output. ?the row specified by setting the od0 bit to 1 is not output ( fixed to low level ) . ?the row specified by clearing the od0 bit to 0 is not output (fixed to low level). ?only the character information specified by v c2 on the row specified by setting the od0 bit to 1 is output from v c2 . ?the character specified to v c2 is not output.
16 m pd6466 1.3.2 character signal output with output select option b option b the v c1 outputs characters of all rows regardless of setting of the od0 and od1 bits. the v c2 output can be specified in character units, and the v c2 outputs only characters for which the v c2 in the rows for which the od0 bit is set to 1. the character specified to v c2 is not output to the rgb and v c1 output. display example (to use v c2 channel for information for recording) rec tape batt 1/1000 0000 am 11:30 1991. 2.22 yokohama bay bridge displayed information such as alarm and tape counter recording information such as date and title recording information at the leftmost position (e.g., weather). rain example of view finder display (rgb and v c2 output) output example rec tape batt 1/1000 0000 rgb character output (color character) character output of v c2 channel (specified row, character specified to v c2 ) am 11:30 1991. 2.22 yokohama bay bridge rec tape batt 1/1000 0000 character output of v c1 channel (all rows) rain ?the character information on all the rows is output from v c1 regardless of the od0 bit. however, the character specified to v c2 is not output. ?only the character information specified to v c2 on the row specified by setting the od0 bit to 1 is output from v c2 . ?the character information specified to v c2 is not output on the row specified by clearing the od0 bit to 0 is not output. ?the character specified to v c2 is not output.
17 m pd6466 1.3.3 character signal output with output select option c option c columns 0 through 11, and 12 through 23 on each row can be output to the v c1 and v c2 pins by using the od0 and od1 bits of the output pin control command. display example tape batt 1/1000 am 11:30 1991. 2.22 displayed information such as alarm and tape counter recording information such as date and title 0000 rec 0 11 12 23 example of view finder display yokohama bay bridge output example tape batt 1/1000 rgb character output (color character) character output of v c2 channel (character specified by v c2 ) am 11:30 1991. 2.22 yokohama bay bridge tape batt 1/1000 character output of v c1 channel (specified row) 0000 rec ?in the case of setting od1 bit to 0, the v c1 outputs the characters of columns 0 to 23 in specified rows for which the od0 bit is set to 0, or the characters of columns 0 to 11 in specified rows for which the od0 bit is set to 1, excluding the characters for which the v c2 specified. ?in the case of setting od1 bit to 1, the v c1 outputs the characters of columns 12 to 23 in specified rows for which the od0 bit is set to 0, and the rows for which the od0 bit is set to 1 are not output (the v c1 pin is fixed to low level), excluding the characters for which the v c2 specified. ?in the case of setting od0 bit to 0, the v c2 outputs the characters of columns 0 to 11 in specified rows for which the od1 bit is set to 1, and the rows for which the od1 bit is set to 0 are not output (the v c2 pin is fixed to low level). ?in the case of setting od0 bit to 1, the v c2 outputs the characters of columns 12 to 23 in specified rows for which the od1 bit is set to 0, or the characters of columns 0 to 23 in specified rows for which the od1 bit is set to 1. ?the character specified to v c2 is not output.
18 m pd6466 1.3.4 displaying characters specified by v c2 the characters specified by v c2 by the display character control command are not output to the rgb and v c1 output channels (the rgb and v c1 output channels display note the same manner as when display off data is written). therefore, even if a background is specified by the rgb and v c1 output channel (no background/filled background), no background is displayed at the specified portion. note the display is slightly different from display off data. filling data: character filling all 12 18 dots ? when display off data is displayed with rgb, v c1 , and v c2 channel in the case of display off data, framing (or background, if any) of adjacent characters is displayed with the framing or background overlapping the area of display off data by one dot of the minimum size (the framing overlaps the area of display off data, when there are dots at the leftmost or rightmost position of the adjacent character area). ? displaying character area specified by v c2 with rgb and v c 1 channels in the case of a character specified by v c2 , the framing of the adjacent characters is displayed with the framing overlapping the v c2 -specified character area by one dot of the minimum size, but the background does not overlap to the v c2 -specified area. ? displaying v c2 -specified character area with v c2 channel even if the v c2 -specified character exists with the v c2 output, the framing also overlaps the adjacent character area, but the background does not (the framing overlaps the v c2 -specified character area, when there are dots at the leftmost or rightmost position of the adjacent character area). ? if v c2 character specification area exists at the edge of display area (the figure shows the leftmost position of the display area. the same applies to the rightmost position of the display area.) portion output with framing or background overlapping (width is 1 dot of the minimum character width.) portion where framing overlaps portion where background overlaps (1)-(5) (2)-(5) the background is not output overlapping the v c2 -specified character area. filling data display off data filling data filling data v c2 -specified character area filling data display off data display off data v c2 -specified character area filling data filling data filling data filling data (1) (3) (4) (5) (2)
19 m pd6466 2. command 2.1 command format control commands can be serially input in 8-bit units. the word length of a command is variable. three types of commands are available: 1-byte commands that consist of 8 bits including the instruction and data, 2-byte commands, and 2-byte successive commands that can be input in an abbreviated form. inputting command data with the msb first or lsb first can be selected by using the cmdct pin. when the cmdct pin is high, the data is input with the msb first; when it is low, the data is input with the lsb first. 2.2 command list (1) msb first 1-byte commands (msb) function d7 d6 d5 d4 d3 d2 d1 d0 video ram batch clear 00000000 display control 0001dolcbl1bl0 background color/frame color control 0010rgbbfc 3-channel independent display on/off 01110doadobdoc character color reverse on/off 0111100 bcre blue back on/off 01111clr0bb character address bank select 0111111bc output switch control 0 1 0 s3a s3b sw4 sw2 sw1 2-byte commands (msb) function d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 character display position control 100000v4v3v2v1v0h4h3h2h1h0 write address control 1000100ar3ar2ar1ar0ac4ac3ac2ac1ac0 output pin control 10011100od1od000ar3ar2ar1ar0 character size control 100110sv1sv0sh1sh000ar3ar2ar1ar0 3-channel background control 1011001ba1ba0bfabb1bb0bfbbc1bc0bfc initial status setting 101101000brrsop1op0cocvstosc test mode note 10110000t7t6t5t4t3t2t1t0 note must not be used. 2-byte successive command (msb) function d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 display character control 1 1 rv r g b bl v c2 c7 c6 c5 c4 c3 c2 c1 c0
20 m pd6466 (2) lsb first 1-byte commands (lsb) function d0 d1 d2 d3 d4 d5 d6 d7 video ram batch clear 00000000 display control bl0 bl1 lc do 1000 background color/frame color control bfc b g r 0100 3-channel independent display on/off docdobdoa01110 character color reverse on/off bcre 0011100 blue back on/off bb 0 clr 11110 character address bank select bc 1111110 output switch control sw1 sw2 sw4 s3b s3a 0 1 0 2-byte commands (lsb) function d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 character display position control v3 v4 000001h0h1h2h3h4v0v1v2 write address control ar3 0010001ac0ac1ac2ac3ac4ar0ar1ar2 output pin control 00111001ar0ar1ar2ar300od0od1 character size control sv0 sv1 011001ar0ar1ar2ar300sh0sh1 3-channel background control ba1 1001101bfcbc0bc1bfbbb0bb1bfaba0 initial status setting 00101101oscvstcocop0op1rsbr0 test mode note 00001101t0t1t2t3t4t5t6t7 note must not be used. 2-byte successive command (lsb) function d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 display character control v c2 bl b g r rv 1 1 c0c1c2c3c4c5c6c7
21 m pd6466 2.3 power-on clear function because the internal status of the ic is undefined on power application, execute power-on clear by lowering the pcl pin for the duration described below. command setting on power-on clear is as follows: ? clears test mode ? default setting of initial status (refer to 3.14 initial status setting command .) ? clears all character data (12 rows, 24 columns) of video ram (display off data (feh)). no data blinks. ? video ram write address (row 0, digit 0) ? standard size for all rows as character size (sv1, sv0, sh1, sh0) = (0, 0, 0, 0) ? all rows specified for output pin selection (od1, od0) = (0, 0) ? display off, lc oscillation on, blinking off ? display of each channel off ? no background and framing for all three channels ? blue back off ? low-order (0) bank for character address the time required for power-on clear can be calculated by the following expression. do not input any command during this time. t (time required for power-on clearing) = t pcll note + video ram clear time = 10 ( m s) + 10 ( m s) + 12/f osc (mhz) 288 f osc (mhz): lc oscillation frequency or external input clock frequency note refer to power-on clear specifications in 6. electrical characteristics . to clear the video ram, the dot clock (osc in pin) must be input. be sure to input the clock when the input of an external clock is selected.
22 m pd6466 3. details of commands 3.1 video ram batch clear command this command can be used to clear the video ram with a single command (regardless of whether the msb or lsb comes first) (msb) (lsb) d7 d6 d5 d4 d3 d2 d1 d0 00000000 the following contents are set by the video ram batch clear command. ? clears all the character data (display off data (feh)) of the video ram (12 rows, 24 columns). no data blinks. ? video ram write address: (row 0, column 0) ? standard size for all rows as character size (sv1, sv0, sh1, sh0) = (0, 0, 0, 0) ? all rows specified for output pin selection (od1, od0) = (0, 0) ? display off, lc oscillation on, blinking off the time required for clearing the video ram can be calculated by the following expression. do not input any command during this time. t (time required for video ram clearing) = video ram clear time = 10 ( m s) + 12/f osc (mhz) 288 f osc (mhz): lc oscillation frequency or external input clock frequency to clear the video ram, the dot clock (osc in pin) must be input. be sure to input the clock when the input of an external clock is selected. remark this command resets the hardware of the ic by inputting a signal to the pcl pin. while initializing the ic including clearing the video ram and the test mode, the video ram batch clear command executes software reset to initialize the ic, and does not clear the test mode.
23 m pd6466 3.2 display control command this command controls the display output, lc oscillation, blinking the characters, and left to right reverse. (1) with msb first (the command is input from msb (d7).) d7 d6 d5 d4 d3 d2 d1 d0 0001dolcbl1bl0 (msb) (lsb) blinking control bit (screen unit) function blinking off blinking frequency: approx. 2 hz blinking frequency: approx. 1 hz blinking frequency: approx. 0.5 hz bl0 0 1 0 1 lc oscillation control bit function lc oscillation off lc oscillation on lc 0 1 character display on/off control bit function display off display on do 0 1 left to right reverse control bit function character left to right reverse off character left to right reverse on bl1 bl1 0 0 1 1 bl0 0 1 ?: ??or ? with blinking character selected note with character left and right reverse selected note note set with the initial setting command.
24 m pd6466 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 bl0bl1lcdo1000 ? blinking control (screen units) the function selected by the initial setting command is controlled. ? blinking control (screen units) whether the characters written to the video ram blink or not is controlled in screen units. the character specified to blink by the display character control command blinks. the blinking ratio is 1:1, and the blinking frequency can be selected from three types. ? left to right reverse control the character specified to be reversed left to right by the display character control command is reversed (this is valid only if character left to right reverse is selected by the initial setting command). display example of character specified to be reversed left to right (character f is displayed) when left to right reverse is off when left to right reverse is on ? lc oscillation control the oscillation circuit can be turned on/off by the oscillation control bit. oscillation is stopped during the period in which the characters are not displayed, to reduce the power consumption. nothing can be written to the video ram while the oscillation is stopped. to write data to the video ram, be sure to turn on oscillation.
25 m pd6466 cautions 1. when lc oscillation is used : oscillation is synchronized with hsync when the character display is on, and is stopped while hsync is low. when character display is off, oscillation continues regardless of hsync. 2. when external clock is input : when an external clock is used, the clock is supplied to the ics internal circuitry when oscillation is turned on. when oscillation is off, the clock supply to the internal circuitry is stopped. ? character display on/off control character display output can be turned on/off. the display is turned on/off in synchronization with the falling of hsync.
26 m pd6466 3.3 background color/frame color control command this command specifies the background color and frame color. this command is valid when filling of the background, blank background, or framing is specified. (1) with msb first (the command is input from msb (d7).) d7 d6 d5 d4 d3 d2 d1 d0 0010rgbbfc (msb) (lsb) background color control bit function black blue green cyan red magenta yellow white r 0 0 0 0 1 1 1 1 frame color control bit function frame color: black frame color: white bfc 0 1 g 0 0 1 1 0 0 1 1 b 0 1 0 1 0 1 0 1 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 bfcbgr0100 ? frame color control the frame color (white/black) can be selected in screen units (rgb output). if the frame is specified with v c1 and v c2 output, the frame color is fixed to black. ? background color control the background color can be selected (from eight colors) in screen units (rgb output). if the background is specified with v c1 and v c2 output (blank background or filled background), the background color is fixed to black.
27 m pd6466 3.4 3-channel independent display on/off command this command can turn on/off the display of character output of 3 channels independently. (1) with msb first (the command is input from msb (d7).) d7 d6 d5 d4 d3 d2 d1 d0 01110doadobdoc (msb) (lsb) control bit doa dob doc 0 1 0 1 0 1 doa dob doc 0 1 control bit function rgb display off rgb display on v c1 display off v c1 display on v c2 display off v c2 display on function character display off character display on don't care don't care with support of rgb/v c1 /v c2 output selected with r/g/b/3blk output selected (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 docdobdoa01110 ? displaying the character signal of the 3 channels (rgb, v c1 , and v c2 ) can be independently turned on/ off. when rgb + rgb compatible blk is selected, it is controlled by the display on/off command. ? turning on display each output channel by using this command is valid only when the display is turned on by the display control command. ? if the display is turned off by the display control command, the display remains off even if it is specified to be on by this command.
28 m pd6466 3.5 character color reverse on/off command this command specifies reversal of character color in screen units. (1) with msb first (the command is input from msb (d7).) d7 d6 d5 d4 d3 d2 d1 d0 0011100 bcre (msb) (lsb) bcre 0 1 function character color not reversed character color reversed character color reverse control bit (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 bcre 0011100 the color of the character specified by the display character control command is reversed for the whole screen with the reverse specifications (character color: black or white) specified by the initial status setting command. example of display of reversed character (example of reversing character i) or no framing framing color reverse off color reverse on character color: black, no framing character color: white, no framing selected from two types by initial setting command character color with reverse off character color: white, black frame or specification of framing is invalid for black character. specification of framin g is invalid for white character. character color with reverse off
29 m pd6466 the character color/background color (with blank background or filled background) can be selected from eight types in the case of rgb output when reversing character color is specified to be off. in the case of v c1 and v c2 , the character color is white and the background color is black. the display off data is not affected even when inverted. if blank data is reversed, it is filled with the character color originally specified. the character color and the color of the framing in the above figure are valid with the rgb. only black and white are displayed in the case of v c1 and v c2 . in the case of v c1 and v c2 , framing in the character color reverse area is invalid (same as the m pd6461 and 6462).
30 m pd6466 3.6 blue back on/off command this command turns on/off the blue back function in screen units. (1) with msb first (the command is input from msb (d7).) (msb) (lsb) d7 d0 0bb d6 1 d5 1 d4 1 d3 1 d2 clr d1 0 blue back control bit bb 0 1 function blue back off blue back on color specification bit clr 0 1 function white blue (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 bb0clr11110 by turning on the blue back function, the character, framing, and area where no background is output are all displayed in blue. this command is valid only for rgb output.
31 m pd6466 3.7 character address bank select command this command selects the area of the character address specified by the character address specification bit of the display character control command. (1) with msb first (the command is input from msb (d7).) d7 d6 d5 d4 d3 d2 d1 d0 0111111bc (msb) (lsb) character address bank select control bit function low-order bank (0) high-order bank (1) bc 0 1 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 bc1111110 if the low-order bank (0) is specified by the 8-bit data (the second byte of the display character control command) of the character data, character addresses 00h through ffh (common addresses 000h through 0ffh) of the low-order (0) bank are specified. if the high-order bank (1) is specified, character addresses 00h through ffh (common addresses 100h through 1ffh) of the high-order (1) bank are specified. if feh is specified at the character address of the display character control command for both banks, the command can be used as the display off code. if ffh is specified, it can be used as a 2-byte successive command end code.
32 m pd6466 3.8 output switch control command this command controls on/off of sw1 through sw4, and selects the output format of rgb and v c1 . (1) with msb first (the command is input from msb (d7).) (msb) (lsb) d7 d0 0 sw1 d6 1 d5 0 d4 s3a d3 s3b d2 sw4 d1 sw2 sw1 control bit sw1 0 1 function off on sw2 control bit sw2 0 1 function off on sw4 control bit sw4 0 1 function off on sw3 control bit s3a 0 0 function controlled by row unit data (od1) od1 = 0 : off, od1 = 1 : on s3b 0 1 1 1 off regardless of od1 on regardless of od1 0 1 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 sw1 sw2 sw4 s3b s3a 0 1 0
33 m pd6466 output format in each switch status mode sw1 sw2 sw4 sw3 rgb v c1 v c2 1 on off off on rgb v c1 v c2 2 on off off off rgb v c1 v c2 3 on on off on rgb+v c2 v c1 v c2 4 on on off off rgb v c1 v c2 5 on off on on rgb v c1 +v c2 v c2 6 on off on off rgb v c1 v c2 7 on on on on rgb+v c2 v c1 +v c2 v c2 8 on on on off rgb v c1 v c2 9 off on on on rgb+v c2 v c2 v c2 10 off on on off rgb v c1 v c2 11 off off on on rgb v c2 v c2 12 off off on off rgb v c1 v c2 13 off off off on rgb v c1 v c2 14 off off off off rgb v c1 v c2 15 off on off on rgb+v c2 v c1 v c2 16 off on off off rgb v c1 v c2 caution the v c2 character is output by each channel as follows. the v c2 outputs only v c2 regardless of the status of sw1 to sw4 (same as m pd6461 and 6462). ? if rgb channel is rgb, rgb + v c2 : not controlled at all by output pin control command. ? if v c1 channel is v c1 , v c1 + v c2 : output pins at v c1 side are controlled. ? if v c1 channel is v c2 : output pins at v c2 side are controlled.
34 m pd6466 3.9 character display position control command this command can be used to set the character display start position in 32 steps in units of 3 dots in the horizontal direction, and in 32 steps in units of 3 rows in the vertical direction (because this command is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively). (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 100000v4v3v2v1v0h4h3h2h1h0 (msb) (lsb) horizontal display start position control bit function h4 0 0 1 h0 0 1 1 time from rising of hsync ( s) (22+3 0)/f osc (mhz) h3 0 0 1 h2 0 0 1 h1 0 0 1 time from rising of hsync ( s) (22+3 1)/f osc (mhz) time from rising of hsync ( s) (22+3 31)/f osc (mhz) remark f osc : lc oscillation frequency or external input clock frequency vertical display start position control bit function v4 0 0 1 v0 0 1 1 3h 0+2h (9h 0+2h) from rising of vsync v3 0 0 1 v2 0 0 1 v1 0 0 1 3h 1+2h (9h 1+2h) from rising of vsync 3h 31+2h from rising of vsync remarks 1. h: row 2. ( ): if 9h unit is selected by the initial status setting command. m m m (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 v3v4000001h0h1h2h3h4v0v1v2
35 m pd6466 ? horizontal display start position control the horizontal display start position can be set in 32 steps in units of 3 dots (3/f osc (mhz)) 22 clocks (22/ f osc (mhz)) after the rising of the horizontal sync signal input to the hsync pin (f osc : lc oscillation frequency or external input clock frequency). ? vertical display start position control the vertical display start position can be set in 32 steps in units of 3 or 9 rows (refer to 3.14 initial status setting command ) from the rising of the vertical sync signal input to the vsync pin. b a vertical sync signal (vsync) horizontal sync signal (hsync) display area: 12 rows, 24 columns a : 3h (2 4 v4 + 2 3 v3 + 2 2 v2 + 2 1 v1 + 2 0 v0) + 2h b : (2 4 h4 + 2 3 h3 + 2 2 h2 + 2 1 h1 + 2 0 h0) + fosc(mhz) 3 fosc(mhz) 22 9h if 9h unit is selected by the initial status setting command. f osc : lc oscillation frequency or external input clock frequency, h: row
36 m pd6466 3.10 write address control command this command is used to specify a write address when characters are written to the display area (video ram) of 12 rows and 24 columns (because this command is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively). (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 1000100ar3ar2ar1ar0ac4ac3ac2ac1ac0 (msb) (lsb) write column address control bit function sets column 0 sets column 1 sets column 23 setting prohibited ac4 0 0 1 ac3 0 0 0 ac2 0 0 1 ac1 0 0 1 write row address control bit function sets row 0 sets row 1 sets row 11 setting prohibited ar3 0 0 1 ar2 0 0 0 ar1 0 0 1 ar0 0 1 1 ac0 0 1 1 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 ar30010001ac0ac1ac2ac3ac4ar0ar1ar2 ? write column address control one row consists of 24 columns in the horizontal direction. specify to which column data is to be written. ? write row address control one column consists of 12 rows in the vertical direction. specify to which row data is to be written.
37 m pd6466 3.11 output pin control command this command selects the format of pin output of the option (a, b, or c) specified by the initial status setting command (because this is a 2-byte command, input of 16 bits is necessary if this command is input more than once successively). remark this command is invalid when rgb + rgb compatible blk output is selected. (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 10011100od1od000ar3ar2ar1ar0 (msb) (lsb) row specification bit function sets row 0 sets row 1 sets row 11 setting prohibited ar3 0 0 1 ar2 0 0 0 ar1 0 0 1 ar0 0 1 1 output pin control bit pin output v c1 : outputs specified row, v c2 : fixed to low level v c1 : fixed to low level, v c2 : outputs specified row od1 0 0 od0 0 1 option a output pin control bit pin output v c1 : outputs all rows, v c2 : fixed to low level v c1 : outputs all rows, v c2 : outputs specified row od1 0 0 od0 0 1 option b output pin control bit pin output v c1 : outputs columns 0-23, v c2 : fixed to low level v c1 : outputs columns 0-11, v c2 : outputs columns 12-23 v c1 : outputs columns 12-23, v c2 : outputs columns 0-11 v c1 : fixed to low level, v c2 : outputs columns 0-23 od1 0 0 1 1 od0 0 1 0 1 option c (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 00111 001ar0ar1ar2ar30 0od0od1 ? row specification control specify to which of the v c1 or v c2 pin the character signal is to be output in row units (or 12-column units). ? output pin control output of the v c1 and v c2 pin can be selected from a, b, or c by using the initial status setting command (the blanking signal is output in the same manner).
38 m pd6466 3.12 character size control command the character size can be specified in row units (independently in the horizontal and vertical directions. because this is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively). (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 100110sv1sv0sh1sh000ar3ar2ar1ar0 (msb) (lsb) row specification control bit function sets row 0 sets row 1 sets row 11 setting prohibited ar3 0 0 1 ar2 0 0 0 ar1 0 0 1 ar0 0 1 1 horizontal character size control bit function sh1 0 0 1 1 1 dot = 1t dots (horizontal standard size) 1 dot = 2t dots (horizontal 2 size) 1 dot = 3t dots (horizontal 3 size) 1 dot = 4t dots (horizontal 4 size) 1t dots ( s) = (f osc : lc oscillation frequency or external clock frequency) f osc (mhz) 1 sh0 0 1 0 1 vertical character size control bit function sv1 0 0 1 1 1 dot = 1h (vertical standard size) 1 dot = 2h (vertical 2 size) 1 dot = 3h (vertical 3 size) 1 dot = 4h (vertical 4 size) sv0 0 1 0 1 m (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 sv0sv1011001ar0ar1ar2ar300sh0sh1 ? row specification control the character size is specified in row units. which row is specified is controlled. ? character size control four steps (16 types) of character size can be selected in the vertical and horizontal directions independently.
39 m pd6466 3.13 3-channel background control command this command can be used to independently specify the background for the output of the 3 channels (because this command is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively). (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 1011001ba1ba0bfabb1bb0bfbbc1bc0bfc (msb) (lsb) v c2 background control bit function no background blank background must not be specified filled background bc1 0 0 1 1 bc0 0 1 0 1 v c2 framing control bit function framing off framing on bfc 0 1 v c1 background control bit function no background blank background must not be specified filled background bb1 0 0 1 1 bb0 0 1 0 1 v c1 framing control bit function framing off framing on bfb 0 1 rgb background control bit function no background blank background must not be specified filled background ba1 0 0 1 1 ba0 0 1 0 1 rgb framing control bit function framing off framing on bfa 0 1 v c2 output v c1 output rgb output (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 ba11001101bfcbc0bc1bfbbb0bb1bfaba0
40 m pd6466 ? framing control whether a character is framed is specified in screen units. framing: if the rightmost or leftmost dots of the dot matrix forming a character are used, the frame is displayed in the adjacent character display area. if the rightmost or leftmost dots of the dot matrix are not used, the frame is displayed on the left or the right of, above, or upper or lower left or right of the character. even when the top or bottom dot is used, framing does not overlap the line above or below. dots other than those at the top or bottom of the dot matrix are framed vertically, horizontally, and diagonally. character dots framing the size of the framing is fixed to one dot of the minimum size even if the character size changes. ? background control no background, blank background, or filled background can be selected in screen units. the background color is selected by the background color/framing color control command. no background : only character data is output. blank background : the background is displayed in the display area of the characters written to the video ram and the portion overlapping by one dot of the minimum size from the rightmost and leftmost position of that area. filled background : in addition to the area where the background is displayed in the blank background mode above, the background is displayed in the areas other than the character display area. ? background and frame display in the case of rgb + v c1 + v c2 output the portion of the character for which v c2 is specified by the display character control command is not output to the rgb and v c1 channels. therefore, even if a background (blank background or filled background) is specified for the rgb or v c1 output, no background is displayed in the v c2 -specified area. in addition, no background is displayed at the portion of the character other than those specified by v c2 in the case of v c2 output (for the details of display of v c2 -specified character area for rgb and v c1 output, refer to 1.3 display with rgb + v c1 + v c2 pins and 1.3.4 displaying characters specified by v c2 ). when rgb + rgb compatible blk output is selected, only the background control bit of rgb output is valid, and the background control bit of v c1 output and v c2 output is invalid (when rgb + rgb compatible blk output is selected, the v c2 output pin is not used. the v c1 channel outputs the logical sum of the rgb output).
41 m pd6466 display format of background and frame display example with character xxh character a xyh character b yyh filled data yzh blank data feh display off data cannot be changed with mask code option (address fixed) can be designed with mask code option no background + no frame display off data blank data display off data filled data character video no background + frame display off data blank data display off data filled data character video frame eight colors can be selected for the character and background, and two colors (black and white) can be selected for the frame, in screen units.
42 m pd6466 display off data blank data display off data blank background + no frame display off data display off data character video filled background + no frame character video blank background + frame character video filled background + frame filled data character video display off data blank data display off data filled data display off data frame back g round frame back g round background background blank data filled data blank data display off data filled data
43 m pd6466 3.14 initial status setting command this command initializes the operation mode. execute this command first on power application. to change the initial setting, be sure to execute this command with the display off. (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 101101000brrsop1op0cocvstosc (msb) (lsb) vertical display start position control bit function vertical display start position setting unit = 3 rows vertical display start position setting unit = 9 rows vst 0 1 output selection control bit function option a option b option c must not be specified op1 0 0 1 1 op0 0 1 0 1 pin selection control bit function rgb + v c1 + v c2 rgb + rgb compatible blk (3blk) coc 0 1 dot clock control bit function lc oscillation external clock input osc 0 1 character color reverse control bit function rs 0 1 character color: black (frame specification is invalid) character color: white (frame specification is valid) function selection bit function br 0 1 character blinks character left to right reverse (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 00101101oscvstcocop0op1rsbr0
44 m pd6466 this command sets the information selected by a mask code option in the m pd6461 and 6462. the default setting is as follows: osc = 0 : lc oscillation vst = 0 : 3-row units coc = 0 : rgb + v c1 + v c2 (op1, op0) = (0, 1) : option b rs = 0 : black character br = 0 : character blinks ? dot clock control the dot clock for character display is set. the dot clock is selected from lc oscillation and external clock input. ? vertical display start position control the character display start position and setting accuracy are set. the setting accuracy is selected from 3 rows and 9 rows. ? pin selection control the output pins of the character and blanking signals are set. the output pins are selected from the following two types: ? rgb + v c1 + v c2 : signal output pins = v r , v g , v b , v blk , v c1 , blk1, v c2 , blk2 ? rgb + rgb compatible blk : signal output pins = v r , v g , v b , r blk , g blk , b blk , v c1 , blk1 ? output selection control the output formats of v c1 and v c2 are set. the output formats are selected from options a, b, and c (refer to 1.3 display with rgb + v c1 + v c2 pins ). the output formats are set only when rgb + v c1 + v c2 is selected by means of pin selection control. select option b when rgb + rgb compatible blk is selected. ? character color reverse control the character when color displayed is turned on is specified. select the character from black character (with frame specification invalid) or white character (with frame specification valid) (refer to 3.5 character color reverse on/off command ).
45 m pd6466 3.15 display character control command this command specifies the character data to be written to the video ram, blinking data, and character color. when inputting this command, turn on lc oscillation (if the oscillation is off, characters cannot be written to the video ram). this command is a 2-byte successive command. to write character data successively without changing the blinking data, character color, and character address bank, the second character and those that follow can be input in the abbreviated form by using only the low-order 8 bits (d7 through d0). in this case, the write column address is automatically incremented (if a character is written to the 23rd column, the next write address is automatically incremented to column 0 (leftmost) on one row below. if characters have been written to the 23rd column on the 11th row, the next write address is automatically incremented to column 0 on row 0). 0 1 2 21 22 23 row n row n+1 row address ( ) row address increment column address ( ) 0 1 2 21 22 23
46 m pd6466 (1) with msb first (the command is input from msb (d15).) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 11rvrgbblv c2 c7 c6 c5 c4 c3 c2 c1 c0 (msb) (lsb) character specification bit function outputs data of 00h outputs data of 01h outputs feh (display off data) ffh (2-byte successive command end code) c4 0 0 1 1 c0 0 1 0 1 c3 0 0 1 1 c2 0 0 1 1 c1 0 0 1 1 v c2 output specification bit function v c2 specification off v c2 specification on v c2 0 1 blinking control bit (character units) function character color specification bit function black blue green cyan red magenta yellow white r 0 0 0 0 1 1 1 1 g 0 0 1 1 0 0 1 1 character color reverse specification bit function character color reverse specification off character color reverse specification on rv 0 1 c5 0 0 1 1 c6 0 0 1 1 c7 0 0 1 1 b 0 1 0 1 0 1 0 1 bl 0 1 character does not blink. character blinks. left and right reverse character control bit function bl 0 1 left and right reverse character specification off left and right reverse character specification on with character blinking selected note with character left and right reverse selected note note set these bits with the initial setting command.
47 m pd6466 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 v c2 rb b g r rv 1 1 c0c1c2c3c4c5c6c7 ? character specification specify the addresses of the 256 types of characters in each bank. note, however, that addresses feh and ffh are respectively fixed to display off data and a 2-byte successive command end code (these addresses are also fixed when characters are changed by using a mask code option, and no characters can be stored to these addresses). the design of the characters can be created by using a mask code option. ?v c2 output specification the character output from the v c2 pin can be specified in character units. the character specified by v c2 is not output from the rgb output or v c1 output channel (this specification is invalid when rgb + rgb compatible blk output selected). ? blinking control (character units) note whether the character written to the video ram blinks is specified in character units. blinking is turned on/off in screen units by using the character display control command (refer to 3.2 display control command ). ? left to right reverse character specification note left to right reverse can be turned on/off in character units (this specification is valid when left and right reverse is turned on by the display control command). note character blinking or character left to right reverse, whichever selected by the initial setting command, is valid. ? character color control a character color can be set in units of one character (valid for rgb output only. the color is fixed for the v c1 and v c2 output). ? character color reverse specification it can be specified whether the color of a character can be reversed or not, in character units. turning on/ off the character color reverse is specified in screen units by the character color reverse on/off command (refer to 3.5 character color reverse on/off command ).
48 m pd6466 3.16 test mode this command is used to test the ic and must not be used for any other purposes. the ic cannot be set in the test mode when the test pin ( m pd6466gs-xxx: pin 9/gt-xxx: pin 10) is connected to gnd. (1) with msb first (the command is input from msb (d15).) (msb) (lsb) d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 10110000t7t6t5t4t3t2t1t0 (2) with lsb first (use of each bit is the same as (1). the command is input from lsb (d0).) (lsb) (msb) d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 d14 d15 00001101t0t1t2t3t4t5t6t7
49 m pd6466 4. transferring commands 4.1 1-byte command d7-d0 with msb first: the command is input from bit d7. data data clk cs d0-d7 with lsb first: the command is input from bit d0. 4.2 2-byte command d15-d8 with msb first 1st byte: d15-d8 2nd byte: d7-d0 data d0-d7 d7-d0 d8-d15 1st byte 2nd byte 1st byte 2nd byte data clk cs with lsb first 1st byte: d0-d7 2nd byte: d8-d15 when transferring a 2-byte command, do not make cs high and keep it low between the first and second bytes.
50 m pd6466 4.3 2-byte successive commands d15-d8 msb first data d0-d7 d7-d0 d8-d15 1st byte 2nd byte 1st byte 2nd byte data clk cs lsb first d7-d0 d8-d15 2nd byte 2nd byte the 2-byte successive command writes characters to the video ram. to successively write characters without changing the blinking data, reverse specification data, and v c2 specification data, first transfer the first byte and then transfer the second byte (character address). to change the contents of the above data, change the contents of the data and then input the command from the first byte after terminating the 2-byte successive command once (by either making cs high or transferring the 2-byte successive command end code). however, the command cannot be transferred successively across banks. when the low-order bank is selected, the command can be transferred successively in a character address range of 000h to 0ffh; when the high-order bank is selected, the character address range is from 100h to 1ffh. it is recommended that characters that are frequently used be stored to both the high-order and low-order banks. to write a character that across the banks, complete successive transfer once, and then transfer the command from the first byte after changing the bank.
51 m pd6466 4.4 successive input of command transfer each of the 1-byte, 2-byte, and 2-byte successive commands from a microcontroller to the m pd6466 as follows. to transfer a 1-byte or 2-byte command, or a 2-byte successive command with blinking data changed after a 2- byte successive command has been transferred, either make cs high once, or transfer ffh (2-byte successive command end code) at the end of the 2-byte successive command. in the latter case, it is not necessary to make cs high. 4.4.1 when 2-byte successive command end code is not used example 1-byte command ? 2-byte successive command ? 1-byte command data clk cs make cs low once and then back hi g h a g ain. 2nd byte (d0-d7) msb first (lsb first) 2nd byte (d8-d15) 00h-feh (normal character) 2-byte successive command 1st byte (d0-d7) 1-byte command (d0-d7) (d8-d15) 00h-feh (normal character) d7-d0 d7-d0 d15-d8 d7-d0 d7-d0 1-byte command 4.4.2 when 2-byte successive command end code is used example 1-byte command ? 2-byte successive command ? 1-byte command data clk cs 1-byte command 2nd byte (d0-d7) msb first (lsb first) 2nd byte (d8-d15) 00h to ffh (normal character) 2-byte successive command 1st byte (d0-d7) 1-byte command (d0-d7) (d8-d15) ffh (2-byte successive command end code) d7-d0 d7-d0 d15-d8 d7-d0 d7-d0 it is not necessar y to make cs low and then back hi g h a g ain. remark by using the 2-byte successive command end code, the cs pin may remain low. however, it is recommended to make cs pin high to improve the noise immunity.
52 m pd6466 5. character patterns the m pd6466 can display 512 character patterns, including alphanumeric characters, kanji characters, and symbols, which are stored in the character generator rom. each pattern in the character generator rom can be modified by specifying a mask code option. however, the display off data at character address feh and 2-byte continuous command end code at ffh cannot be modified because they are fixed in both high-order (1) and low-order (0) banks. therefore, no character pattern can be input at these addresses. when none of the 12 18 dots are filled for a character pattern at addresses 000h to 0fdh and 100h to 1fdh, the character pattern is called blank data. character address feh in both banks is called display off data. blank data and display off data are represented in the same way (with no dots filled) in character patterns (of the m pd6466gs-001) shown on the following pages, but they are different as follows: character code display of character area in each background mode no background minimum background overall background blank data displays image displays background displays background display off data displays image displays image only displays image only (without background) (without background) you cannot specify display off data for addresses other than feh when using a mask code option. blank data, however, can be specified at any address from 000h to 0fdh or 100h to 1fdh (address 0ffh and 1ffh cannot be used because they are fixed to the 2-byte continuous command end code). the character patterns of the m pd6466gs-001/gt-201 (necs standard model) are shown on the following pages.
53 m pd6466 m pd6466gs-001/gt-201 character patterns [000h] [001h] [002h] [003h] [004h] [005h] [006h] [007h] [008h] [009h] [00ah] [00bh] [00ch] [00dh] [00eh] [00fh] [010h] [011h] [012h] [013h] [014h] [015h] [016h] [017h] [018h] [019h] [01ah] [01bh] [01ch] [01dh] [01eh] [01fh] [020h] [021h] [022h] [023h] [024h] [025h] [026h] [027h] [028h] [029h] [02ah] [02bh] [02ch] [02dh] [02eh] [02fh] [030h] [031h] [032h] [033h] [034h] [035h] [036h] [037h] [038h] [039h] [03ah] [03bh] [03ch] [03dh] [03eh] [03fh] [040h] [041h] [042h] [043h] [044h] [045h] [046h] [047h] [048h] [049h] [04ah] [04bh] [04ch] [04dh] [04eh] [04fh]
54 m pd6466 [050h] [051h] [052h] [053h] [054h] [055h] [056h] [057h] [058h] [059h] [05ah] [05bh] [05ch] [05dh] [05eh] [05fh] [060h] [061h] [062h] [063h] [064h] [065h] [066h] [067h] [068h] [069h] [06ah] [06bh] [06dh] [06ch] [06eh] [06fh] [070h] [071h] [072h] [073h] [074h] [075h] [077h] [076h] [078h] [079h] [07ah] [07bh] [07ch] [07dh] [07eh] [07fh] [081h] [080h] [082h] [083h] [084h] [085h] [086h] [087h] [088h] [089h] [08bh] [08ah] [08ch] [08dh] [08eh] [08fh] [090h] [091h] [092h] [093h] [095h] [094h] [096h] [097h] [098h] [099h] [09ah] [09bh] [09ch] [09dh] [09eh] [09fh]
55 m pd6466 [0a0h] [0a1h] [0a2h] [0a3h] [0a4h] [0a5h] [0a6h] [0a7h] [0a8h] [0a9h] [0aah] [0abh] [0ach] [0adh] [0aeh] [0afh] [0b0h] [0b1h] [0b2h] [0b3h] [0efh] [0b4h] [0b5h] [0b6h] [0b7h] [0b8h] [0b9h] [0bah] [0bbh] [0bch] [0bdh] [0beh] [0bfh] [0c0h] [0c1h] [0c2h] [0c3h] [0c4h] [0c5h] [0c6h] [0c7h] [0c8h] [0c9h] [0cah] [0cbh] [0cch] [0cdh] [0ceh] [0cfh] [0d0h] [0d1h] [0d2h] [0d3h] [0d4h] [0d5h] [0d6h] [0d7h] [0d8h] [0d9h] [0dah] [0dbh] [0dch] [0ddh] [0deh] [0dfh] [0e0h] [0e1h] [0e2h] [0e3h] [0e5h] [0e4h] [0e6h] [0e7h] [0e8h] [0e9h] [0eah] [0ebh] [0ech] [0edh] [0eeh]
56 m pd6466 [0f0h] [0f1h] [0f2h] [0f3h] [0f4h] [0f5h] [0f6h] [0f7h] [0f9h] [0f8h] [0fah] [0fbh] [0fch] [0fdh] note 1 [0feh] note 2 [0ffh] note 3 [100h] [101h] [103h] [102h] [104h] [105h] [106h] [107h] [108h] [109h] [10ah] [10bh] [10dh] [10ch] [10eh] [10fh] [110h] [111h] [112h] [113h] [114h] [115h] [116h] [117h] [118h] [119h] [11ah] [11bh] [11ch] [11dh] [11eh] [11fh] [120h] [121h] [122h] [123h] [124h] [125h] [126h] [127h] [128h] [129h] [12ah] [12bh] [12ch] [12dh] [12eh] [12fh] [130h] [131h] [132h] [133h] [134h] [135h] [136h] [137h] [138h] [139h] [13ah] [13bh] [13ch] [13dh] [13eh] [13fh]
57 m pd6466 [140h] [141h] [142h] [143h] [144h] [145h] [146h] [147h] [148h] [149h] [14ah] [14bh] [14ch] [14dh] [14eh] [14fh] [150h] [151h] [152h] [153h] [154h] [155h] [156h] [157h] [158h] [159h] [15ah] [15bh] [15ch] [15dh] [15eh] [15fh] [160h] [161h] [162h] [163h] [164h] [165h] [166h] [167h] [168h] [169h] [16ah] [16bh] [16ch] [16dh] [16eh] [16fh] [170h] [171h] [172h] [173h] [174h] [175h] [176h] [177h] [178h] [179h] [17ah] [17bh] [17ch] [17dh] [17eh] [17fh] [180h] [181h] [182h] [183h] [184h] [185h] [186h] [187h] [188h] [189h] [18ah] [18bh] [18ch] [18dh] [18eh] [18fh]
58 m pd6466 [190h] [191h] [192h] [193h] [194h] [195h] [196h] [197h] [198h] [199h] [19ah] [19bh] [19ch] [19dh] [19eh] [19fh] [1a0h] [1a1h] [1a2h] [1a3h] [1a4h] [1a5h] [1a6h] [1a7h] [1a8h] [1a9h] [1aah] [1abh] [1ach] [1adh] [1aeh] [1afh] [1b0h] [1b1h] [1b2h] [1b3h] [1b4h] [1b5h] [1b6h] [1b7h] [1b8h] [1b9h] [1bah] [1bbh] [1bch] [1bdh] [1beh] [1bfh] [1c0h] [1c1h] [1c2h] [1c3h] [1c4h] [1c5h] [1c6h] [1c7h] [1c8h] [1c9h] [1cah] [1cbh] [1cch] [1cdh] [1ceh] [1cfh] [1d0h] [1d1h] [1d2h] [1d3h] [1d4h] [1d5h] [1d6h] [1d7h] [1d8h] [1d9h] [1dah] [1dbh] [1dch] [1ddh] [1deh] [1dfh]
59 m pd6466 [1e0h] [1e1h] [1e2h] [1e3h] [1e4h] [1e5h] [1e6h] [1e7h] [1e8h] [1e9h] [1eah] [1ebh] [1ech] [1edh] [1eeh] [1efh] [1f0h] [1f1h] [1f2h] [1f3h] [1f4h] [1f5h] [1f6h] [1f7h] [1f8h] [1f9h] [1fah] [1fbh] [1fch] [1fdh] note 1 [1feh] note 2 [1ffh] note 3 notes 1. blank data 2. display off data (character addresses are fixed) 3. 2-byte continuous input end code (character addresses are fixed) remark 0xxh indicates character address of the low-order (0) bank, and 1xxh indicates that of the high-order (1) bank.
60 m pd6466 6. electrical characteristics absolute maximum ratings parameter symbol ratings unit supply voltage v dd 7v input pin voltage v in C0.3 to v dd + 0.3 v output pin voltage v out C0.3 to v dd + 0.3 v operating ambient temperature t a C20 to +75 c storage temperature t stg C40 to +125 c output current i o 5ma caution exposure to absolute maximum ratings for extended periods may affect device reliability; exceeding the ratings could cause permanent damage. the parameters apply independently. the device should be operated within the limits specified under dc and ac characteristics. recommended operating range parameter symbol conditions min. typ. max. unit supply voltage range v dd 2.7 5.5 v oscillation frequency (lc oscillation) f osc v dd = 2.7 to 5.5 v 6.0 8.0 mhz oscillation frequency (external clock) f osc v dd = 2.7 to 5.5 v 4.0 8.0 mhz operating ambient temperature t a C20 +75 c electrical characteristics (t a = 25 c, unless otherwise specified, v dd = 2.7 to 5.5 v) parameter symbol conditions min. typ. max. unit supply voltage range v dd 2.7 5.0 5.5 v current consumption 1 i dd f osc = 8.0 mhz, v dd = 5.0 v 5.0 10.0 ma current consumption 2 i dd f osc = 8.0 mhz, v dd = 3.0 v 3.0 5.0 ma signal input high-level voltage v ish 0.7 v dd v signal input low-level voltage v isl 0.3 v dd v signal output high-level voltage v osh i osl = C1 ma (v dd = 5 v)/C0.5 ma 0.9 v dd v (v dd = 3 v) signal output low-level voltage v osl i osl = 1 ma (v dd = 5 v)/0.5 ma 0.1 v dd v (v dd = 3 v) remark signal input : data, clk, cs, pcl, hsync, vsync, cmdct signal output : v r , v g , v b , v c1 , v c2 , v blk , blk1, blk2 (r blk , g blk , b blk ) ( ): set by initial status setting command
61 m pd6466 recommended operation timing (t a = C20 to +75 c, v dd = 2.7 to 5.5 v) parameter symbol conditions min. typ. max. unit setup time t set 200 ns hold time t hold 200 ns minimum clock low-level width t ckl 400 ns minimum clock high-level width t ckh 400 ns clock cycle t tck 1.0 m s cs setup time t css 400 ns cs hold time t csh 400 ns minimum hsync low-level width t hwl 4 m s minimum vsync low-level width t vwl 4 m s 10 % t hwl hsync 10 % t vwl vsync cs clk data t csh 90 % t ckh t ckl t css t tck 10 % 10 % 90 % 90 % t set t hold 10 %
62 m pd6466 power-on clear specifications parameter symbol conditions min. typ. max. unit pcl pin low retention period t pcll 10 m s t pcll 0.8 v dd 0 v 0 v v dd v dd 0.16 v dd v dd pcl external clock input external clock input timing (valid when selected by initial status setting command) t c-h 50 % t h-c 50 % t s 10 % 90 % hsync external input clock parameter symbol conditions min. typ. max. unit external clock falling t c-h 30 ns ? sync signal rise time sync signal rise time t h-c 30 ns ? external clock falling t s (rising slew rate) t s note ns note 10% of cycle of external clock example where the external clock frequency is 8 mhz clock cycle = 125 ns 12.5 ns (max.) because 125 ns 10% (max.) remarks 1. always keep the phase relation between the rising of hsync and external input clock. 2. make sure that noise of greater than 100 ns is not superimposed on the input of hsync. 3. keep the osc out pin open when the external clock is input.
63 m pd6466 character and blk signal output characters and blk signal are output in synchronization with the falling of the dot clock. cds cus dtw cdl 50 % 50 % 10 % 90 % external input clock character signal blk signal output timing (t a = C20 to +75 c, pins: v r , v g , v b , v blk , v c1 , blk1, v c2 , blk2, (r blk , g blk , b blk )) ( ): set by initial status setting command parameter symbol conditions min. typ. max. unit character/blk signal output delay cdl v dd = 4.5 to 5.5 v, output load capacitance = 10 pf 10 18 30 ns character/blk signal output delay cdl v dd = 2.7 to 3.3 v, output load capacitance = 10 pf 15 35 80 ns character/blk signal rise time cus v dd = 4.5 to 5.5 v, output load capacitance = 10 pf 2 10 ns character/blk signal rise time cus v dd = 2.7 to 3.3 v, output load capacitance = 10 pf 4 25 ns character/blk signal falling cds v dd = 4.5 to 5.5 v, output load capacitance = 10 pf 2 10 ns character/blk signal falling cds v dd = 2.7 to 3.3 v, output load capacitance = 10 pf 4 25 ns minimum size of 1 dot width dtw v dd = 4.5 to 5.5 v, output load capacitance = 10 pf (1/oscillation frequency (mhz)) 5ns minimum size of 1 dot width dtw v dd = 2.7 to 3.3 v, output load capacitance = 10 pf (1/oscillation frequency (mhz)) 5ns
64 m pd6466 command successive input permissible time successively input commands under the following timing conditions: (t a = C20 to +75 c, v dd = 2.7 to 5.5 v) parameter symbol conditions min. typ. max. unit command successive t1 common to all commands 2.0 m s input enable time t2 video ram write display on lc oscillation note 1 m s command external clock note 2 display off 2.0+19/f osc m s f osc : lc oscillation or external input clock frequency (mhz) notes 1. (1) 2.0 + (14/f osc ) s1 + 19/f osc + (1/f osc ) s2 + t hwl (2) 2.0 + (19/f osc ) s s : character size ( 1 (min.) to 4) s1 : horizontal character size before hsync s2 : horizontal character size before hsync t hwl : hsync width because the clock is not supplied to the internal circuitry during lc oscillation and hsync, if hsync is input while the video ram write command is executed, the width directly influences the execution time (1). if hsync is not input in the middle, the execution time is as (2) above. whether (1) or (2) is longer in time depending on the horizontal character size before and after hsync and hsync width is not known. the longer time is the permissible minimum time. 2. 2.0 + 31/f osc (s = 1) 2.0 + (19/f osc ) s (s = 2, 3, 4) the restriction of t2 is not applied to the commands other than the video ram write command if the clock cycle for control satisfies the specifications. data hi-z hi-z t1 t2 hi-z clk
65 m pd6466 7. application circuit example clk cs data pcl v dd cmdct osc out osc in test gnd hsync vsync v b v g v r v blk v c2 blk2 v c1 blk1 note 4 (b blk ) note 4 (g blk ) note 4 (r blk ) pd6466gs/gt m 20 (24) 19 (23) 18 (21) 17 (20) 16 (19) 15 (18) 14 (17) 13 (16) 12 (15) 11 (14) output inputs a negative hsync or vsync signal 1 (1) 2 (2) 3 (4) 4 (5) 5 (6) 6 (7) 7 (8) note 3 8 (9) note 3 9 (10) 10 (11) connected to microcomputer v dd 10 f m 100 k w 10 f m note 1 0.01 f m + + v dd note 2 note 5 33 f m 5 to 30 pf 30 pf msb first lsb first lc module pin no. 1 lc module pin no. 3 notes 1. cr constant must be satisfied with power-on clear specification (refer to 6. electrical characteristics ). 2. this circuit can reduce the number of external components and facilitates the adjustment of oscillation frequency, using lc module (part number: q285ncis-11181, manufactured by toko, inc.) 3. connect these pins as follows when inputting external clock: osc in pin: external clock input, osc out pin: open 4. signals in ( ) are set by using an initial status setting command (rgb + rgb compatible blanking). 5. when this connection is open, lsb first is selected. remarks 1. the number in the parentheses indicates the pin number of the m pd6466gt-xxx. 2. with the m pd6466gt-xxx, influence by noise via lead frame can be surpressed by connecting the n.c. pins (3, 12, 13, 22) to gnd.
66 m pd6466 8. package drawings ns c d m m p f g e b l k j detail of lead end 20 pin plastic shrink sop (300 mil) note 2. each lead centerline is located within 0.12 mm (0.005 inch) of its true position (t.p.) at maximum material condition. p20gm-65-300b-3 item millimeters inches a b c d e f g h i j 0.65 (t.p.) 2.0 max. 1.7?.1 8.1 0.3 0.575 max. k l 0.12 0.5 0.2 1.0 0.2 6.1 0.2 0.15 m 0.10 0.32 0.125 0.075 n +0.10 ?.05 0.023 max. 0.013 0.005 0.003 0.079 max. 0.067 0.319 0.012 0.240 0.008 0.039 0.006 0.020 0.005 0.004 +0.008 ?.009 0.026 (t.p.) p 3 3 +0.004 ?.005 +0.004 ?.002 6.7?.3 0.264 +0.012 ?.013 1. controlling dimension millimeter. s +0.003 ?.004 +0.08 ?.07 +7 ? +7 ? +0.009 ?.008 20 11 110 a h i
67 m pd6466 24 pin plastic sop (375 mil) note 1. controlling dimention item millimeters inches e f 2.9 max. 0.125?.075 0.005?.003 0.115 max. b c 1.27 (t.p.) 0.87 max. 0.035 max. 0.050 (t.p.) g 2.50?.2 0.098 detail of lead end b k l p g e f a 15.3 0.602 +0.41 ?.2 +0.017 ?.008 d 0.42 0.017 +0.08 ?.07 h 10.3?.2 0.406 i 7.2?.2 0.283 j 1.6?.2 0.063?.008 k 0.17 0.007 +0.08 ?.07 l 0.8?.2 0.031 m n 0.10 0.12 0.005 0.004 p3 3 +7 ? p24gt-50-375b-2 +7 ? +0.009 ?.008 +0.003 ?.004 +0.009 ?.008 +0.008 ?.009 +0.009 ?.008 +0.003 ?.004 m c m j d 2. each lead centerline is located within 0.12 mm (0.005 inch) of its true position (t.p.) at maximum material condition. millimeter. 24 13 112 s s a n h i
68 m pd6466 9. recommended soldering conditions when soldering this product, it is highly recommended to observe the conditions as shown below. if other soldering processes are used, or if the soldering is performed under different conditions, please make sure to consult with our sales offices. for more details, refer to our document semiconductor device mounting technology manual (c10535e) . surface mount devices m pd6466gs-xxx: 20-pin plastic shrink sop (300 mil) m pd6466gt-xxx: 24-pin plastic sop (375 mil) process conditions symbol infrared ray reflow peak temperature: 235 c or below (package surface temperature), ir35-00-2 reflow time: 30 seconds or less (at 210 c or higher), maximum number of reflow processes: 2 times. vps peak temperature: 215 c or below (package surface temperature), vp15-00-2 reflow time: 40 seconds or less (at 200 c or higher), maximum number of reflow processes: 2 times. wave soldering solder temperature: 260 c or below, flow time: 10 seconds or less, ws60-00-1 maximum number of flow processes: 1 time, pre-heating temperature: 120 c or below (package surface temperature). partial heating method pin temperature: 300 c or below, C heat time: 3 seconds or less (per each side of the device). caution apply only one kind of soldering condition to a device, except for partial heating method, or the device will be damaged by heat stress.
69 m pd6466 notes for cmos devices 1 precaution against esd for semiconductors note: strong electric field, when exposed to a mos device, can cause destruction of the gate oxide and ultimately degrade the device operation. steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. environmental control must be adequate. when it is dry, humidifier should be used. it is recommended to avoid using insulators that easily build static electricity. semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. all test and measurement tools including work bench and floor should be grounded. the operator should be grounded using wrist strap. semiconductor devices must not be touched with bare hands. similar precautions need to be taken for pw boards with semiconductor devices on it. 2 handling of unused input pins for cmos note: no connection for cmos device inputs can be cause of malfunction. if no connection is provided to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence causing malfunction. cmos device behave differently than bipolar or nmos devices. input levels of cmos devices must be fixed high or low by using a pull-up or pull-down circuitry. each unused pin should be connected to v dd or gnd with a resistor, if it is considered to have a possibility of being an output pin. all handling related to the unused pins must be judged device by device and related specifications governing the devices. 3 status before initialization of mos devices note: power-on does not necessarily define initial status of mos device. produc- tion process of mos does not define the initial operation status of the device. immediately after the power source is turned on, the devices with reset function have not yet been initialized. hence, power-on does not guarantee out-pin levels, i/o settings or contents of registers. device is not initialized until the reset signal is received. reset operation must be executed imme- diately after power-on for devices having reset function.
m pd6466 no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec corporation. nec corporation assumes no responsibility for any errors which may appear in this document. nec corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. no license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or others. while nec corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. to minimize risks of damage or injury to persons or property arising from a defect in an nec semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. nec devices are classified into the following three quality grades: "standard", "special", and "specific". the specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. the recommended applications of a device depend on its quality grade, as indicated below. customers must check the quality grade of each device before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) specific: aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. the quality grade of nec devices is "standard" unless otherwise specified in nec's data sheets or data books. if customers intend to use nec devices for applications other than those specified for standard quality grade, they should contact an nec sales representative in advance. anti-radioactive design is not implemented in this product. m4 96.5 [memo] the application circuits and their parameters are for reference only and are not intended for use in actual design-ins.

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