zeppelinstrasse 19 d- 82 205 gilching phone +49-8105-778090 fax +49-8105-778099 http://www.lcd-module.de ea dip204-4 2.2010 lcd module 4x20 - 3.73mm incl. controller ks0073 features * high contrast lcd supertwist display * controller ks0073 (near 100% compa tible with hd44780) * interface for 4- and 8-bit data bus * serial spi interface (sid, sod, sclk) * power supply + 3.3..+5v (-4nlw, -4nled) * power supply + 5v ( -4hnled) * opera ting t emperature range 0~+50c (-20..+70c: -4nlw, -4hnled) * built-in t emperature compensation (-4nlw, -4hnled) * led ba cklight y/g max. 150ma@+25c * low power with blue-white optic / max. 45ma@+25c * some more modules with same mechanic and same pinout: - dotmatrix 1x8, 2x16 - graphic 122x32 * no screws required: solder on in pcb only * detachable via 9-pin socket ea b200-9 (2 pcs. required) ordering information lcd module 4x20 - 3.73mm with led backlight y/g ea dip204-4nled same but for t op. -20~+70c / t stor. -30~+80c ea dip204-4hnled blue-white, t op. -20~+70c / t stor. -30~+80c ea dip204b-4nlw 9-pin socket, height 4.3mm (1 pc.) ea b200-9 adaptor pcb with stand ard pinout pitch 2.54mm ea 9907-dip no more mounting required ea dip204b-4nlw dimension 75 x 27 mm ea dip204-4hnled dimension 68 x 27 mm
2 ea dip204-4 specifications may be changed without prior notice. printing error reserved. pinout tabel of command (ks0073, ie=high) instruction c ode description execute time (270khz) re bit rs r/w db 7 db 6 db 5 db 4 db 3 db 2 db 1 db 0 clear display * 0 0 0 0 0 0 0 0 0 1 clears all display and returns the cursor to the home position (address 0). 1.53ms cursor at home 0 0 0 0 0 0 0 0 0 1 * returns the cursor to the home position (address 0). also returns the display being shifted to the original position. dd ram contents remain unchanged. 1.53ms power down mode 1 0 0 0 0 0 0 0 0 1 pd set power down mode bit. pd=0: powerdown mode disable pd=1: powerdown mode enable 39s entry mode set 0 0 000 0 0 0 1 i/d s cursor moving direction (i/d=0: dec; i/d=1: inc) shift enable bit (s=0: disable; s=1: enable shift) 39s 1 0 000 0 0 0 11 bid segment bidirectional function (bid=0: seg1->seg60; bid=1: seg60->seg1) 39s display on/off control 0 0 000 0 0 1 dc b d=0: display off; d=1: display on c=0: cursor off; c=1: cursor on b=0: blink off; b=1: blink on 39s extended function set 1 0 000 0 0 1 fw bw nw fw=0: 5-dot font width; fw=1: 6-dot font width bw=0: normal cursor; bw=1: inverting cursor nw=0: 1- or 2-line (see n); nw=1: 4-line display 39s cursor / display shift 0 0 000 0 1 s/c r/l * * moves the cursor or shifts the display s/c=0: cursor shift; s/c=1: display shift r/l=0: shift to left; r/l=1: shift to right 39s scroll enable 1 0 0 0 0 0 1 h4 h3 h2 h1 determine the line for horizontal scroll 39s function set 0 0 000 1 dl n re dh re sets interface data length (dl=0:4-bit; dl=1:8-bit) number of display lines (n=0: 1-line; n=1: 2-line) extension register (re= 0/1) scroll/shift (dh=0: dot scroll; dh=1: display shift) reverse bit (rev=0:normal; rev=1:inverse display) 39s 1 0 000 1 dl n re be lp cg-/seg-ram blink (be=0: disable; be=1: enable) lp=0: normal mode; lp=1: low power mode 39s cg ram address set 0 0 001 ac sets the cg ram address. cg ram data is sent and received after this setting. 39s seg ram address set 1 0 001 * * ac sets the seg ram address. seg ram data is sent and received after this setting. 39s dd ram address set 0 0 01 ac sets the dd ram address. dd ram data is sent and received after this setting. 39s set scroll quantity 1 0 01 * sq sets the quantity of horizontal dot scroll (dh=0) 39s busy flag / address read * 0 1bf ac reads busy flag (bf) indicating internal operation is being performed and reads address counter contents. - write data * 1 0 write data writes data into internal ram (dd ram / cg ram / segram) 43s read data * 1 1 read data reads data from internal ram (dd ram / cg ram / segram) 43s backlight using the led backlight requires an current source or external current-limiting resistor. forward voltage for yellow/green backlight is 3.9~4.2v and for white led backlight is 3.0~3.6v. please take care of derating for t a >+25c. note: - do never connect backlight direct to 5v; this may destroy backlight immediately ! - blue-white displays do always need a backlight for contrast (min. 5ma). pin symbol level function pin symbol level function 1 vss l power supply 0v (gnd) 10 d3 h / l display data 2 vdd h power supply +5v 11 d4 (d0) h / l display data 3 vee - contrast adjustment, input 12 d5 (d1) h / l display data 4 rs (cs) h / l h=data, l=command 13 d6 (d2) h / l display data 5 r/w (sid) h / l h=read, l=write 14 d7 (d3) h / l display data, msb 6 e (sclk) h enable (falling edge) 15 - - nc (see ea dip122-5n) 7 d0 (sod) h / l display data, lsb 16 res l reset (internal pullup 10k) 8 d1 h / l display data 17 a - led b/l+ resistor required 9 d2 h / l display data 18 c - led b/l-
3 ea dip204-4 specifications may be changed without prior notice. printing error reserved. contrast adjustment pin 3 requires driving voltage for contrast vee. adjustment can be done by external potentiometer for example. note: in contrast to many other dotmatrix lcd modules input is supplied with vdd level here ! crea ting y our own characters all these character display modules got the feature to create 8 own characters (ascii codes 0..7) in addition to the 240 rom fixed codes. 1.) the command "cg ram address set" defines the ascii code (bit 3,4,5) and the dot line (bit 0,1,2) of the new character. example demonstrates creating ascii code $00. 2.) doing 8 times the write command "data write" defines line by line the new character. 8th. byte stands for the cursor line. 3.) the new defined character can be used as a "normal" ascii code (0..7); use with "dd ram address set" and "data write". set cg ram address data adresse hex bit hex 7 6 5 4 3 2 1 0 0 1 0 0 0 0 0 0 $40 x x x 0 0 1 0 0 $04 0 0 1 $41 0 0 1 0 0 $04 0 1 0 $42 0 0 1 0 0 $04 0 1 1 $43 0 0 1 0 0 $04 1 0 0 $44 1 0 1 0 1 $15 1 0 1 $45 0 1 1 1 0 $0e 1 1 0 $46 0 0 1 0 0 $04 1 1 1 $47 0 0 0 0 0 $00 addressing: 1st. line $00..$13 2nd. lin e $20..$33 3rd. line $40..$53 4th. line $60..$73 character set a full character set is built in already. additionally to that 8 more characters can be defined individually. initialisation example for 8 bit mode command rs r/w db7 db6 db5 db4 db3 db2 db1 db0 he x description function set 0 0 0 0 1 1 0 1 0 0 $34 8 bit data length, extension bit re=1 ext. function set 0 0 0 0 0 0 1 0 0 1 $09 4 line mode function set 0 0 0 0 1 1 0 0 0 0 $30 8 bit data length, extension bit re=0 display on/off 0 0 0 00 01 11 1 $0f display on, cursor on, cursor blink clear display 0 0 0 0 0 0 0 0 0 1 $01 clear display, cursor 1st. row, 1st. line entry mode set 0 0 0 0 0 0 0 1 1 0 $06 cursor will be automatically incremented ea dip204-4nled 2,5k vee vdd ea dip204b-4nlw ea dip204-4hnled both versions -4nlw and -4hnleddo have a built-in temperature compensatione; so there's no more need for contrats adjustment while operation anymore.
zeppelinstrasse 19 d- 82 205 gilching phone +49-8105-778090 fax +49-8105-778099 http://www.lcd-module.de ea dip204-4 dimensions serial mode factory set for interface is parallel with 4 bit or 8 bit data bus. alternative module can be programmes with serial data stream. for that solder link 4/8 has to be opened and closed to spi side. specification for serial operation mode is written down in user manual for ks0073: http://www.lcd-module.de/eng/ pdf/zubehoer/ks0073.pdf adaptor pcb the adaptor pcb ea 9907-dip is made for a quick function test for all dip modules. this interface board provides the standard dotmatrix pinout with 1x14, 1x16, 2x7 and 2x8 pins (0.1" pitch). all dimensions are in mm attention handling precautions!
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