View ATM12864D_8226226.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

user?s guide atm 12864 d liquid crystal display module
atm12864 d lcm use?s guide contents ch apter 1. introduction to atm 12864d lcm 2 features 2 mechanical specifications 2 temperature characteristics 2 external dimensions 3 application diagram 4 electro - optical characteristics 4 interface pin connections 6 electrical absolute ma ximum rating (ks0107b) 7 dc electrical characteristics (ks0107b) 7 electrical absolute maximum rating (ks0108b) 8 dc electrical characteristics (ks0108b) 8 chapter 2. driver ic (ks0107b) function description 9 introduction 9 ac characteristics 10 master mode 10 slave mode 11 functional description 11 rc oscillator 11 timing generation circuit 12 data shift & phase select control 13 chapter 3. driver ic (ks0108b) function description 13 introduction 14 ac characteristics 14 o perating principles & methods 16 display control instruction 19
64ch common driver for dot matrix lcd 2 chapter 1 introduction to a t m 12864 d lcm vt12864d is a dot matrix graphic lcd module which is fabricated by low power coms technology. it can display 128*64 dots size lc d panel using a 128*64 bit - mapped display data ram (ddram). it interfaces with an 8 - bit microprocessor. features l display format: 128*64 dots matrix graphic l stn yellow - green mode l easy interface with 8 - bit mpu l low power consumption l led back - light l viewing ang le: 6 o?clock l driving method : 1/64 duty , 1/9 bias l lcd driver ic: ks0108b(2 ?? ) ? ks0107b l connector: zebra mechanical specifications item dimension unit module size(w*h*t) 93.0*70.0*10.0 mm viewing area(w*h) 72.0*40.0 mm number of dots 128.0*64.0 pcs dot size(w*h) 0.48*0.48 mm dot pitch(w*h) 0.52*0.52 mm module size with b/l 93 .0*70.0*15.0 mm temperature characteristics parameter symbol rating unit operating temperature topr - 25~+65 ?? storage temperature tstg - 30~+70 ??
64ch common driver for dot matrix lcd 3 figure 1. external dimensions pin 1 2 3 4 5 6 7 8 9 10 s ignal vss v dd v0 d/i r/w e db0 db1 db2 db3 pin 11 12 13 14 15 16 17 18 19 20 signal db4 db5 db6 db7 cs1 cs2 res vee a k *note: 1 .all units are mm. 2. tolerances unless otherwise specified 0.2.
64ch common driver for dot matrix lcd 4 figure 2. application diagram cs2b db[0:7] resetb cs1b s64 s1 cs3 rs e rw 12 v3 ks0108b (bottom view) vss vss vee v4 v5 clk1 cl2 clk2 m frm v0 v1 v2 vdd adc vee seg64 db[0:7] resetb cs1b cs3 cs2b resetb db[0:7] cs2 cs1 e rw rs 12 rs rw e seg1 .... c1 c64 c cr r adc vee vss v3 mpu vss v5 v4 v0 v2 v1 vdd s1 s64 ks0108b (bottom view) clk2 cl2 frm clk1 m vss v4 v3 v5 v1 v0 v2 vee v4 v5 v2 v3 vdd v0 v1 fs ds1 vss ds2 ms pclk2 vdd shl cl2 clk2 clk1 frm m ks0107b seg128 lcd panel (128x64) seg65 .... . . com64 com1 dc ? dc convertor vdd vss vee v lcd *note 1/64 duty, 1/9 bias v dd >v1>v2>v3>v4>v5>v ee
64ch common driver for dot matrix lcd 5 electro - optical characteristics tn type (twisted nematic ) item symbol min. typ. max. unit condition note | 2 - | 1 viewing angle |? 40 - - deg. cr = 2.0 1,2 contrast ratio cr - 4 - - | =20 |? |? = 0 |? 3 response time (rise) t r - 110 - ms | =20 |? |? = 0 |? 4 response time (fall) t f - 110 - ms | =20 |? |? = 0 |? 4 stn type (super twisted nematic ) item symbol min. typ. max. unit condit ion note | 2 - | 1 viewing angle |? 70 - 90 - +90 deg. cr = 2.0 1,2 contrast ratio cr - 4 - - | =20 |? |? = 0 |? 3 response time (rise) t r - 110 - ms | =20 |? |? = 0 |? 4 response time (fall) t f - 110 - ms | =20 |? |? = 0 |? 4 4 . d e f i n i t i o n o f o p t i c a l r e s p o n s e 3 . d e f i n i t i o n o f c o n t r a s t c r 2 . d e f i n i t i o n o f v i e w i n g a n g l e | 1 & |? 2 1 . d e f i n i t i o n o f a n g l e | & |? | 1 | 2 y ( |? = 1 8 0 |? ) y ? ( |? = 0 |? ) | 1 < 2 0 |? < | 2 | 1 2 0 |? | 2 2 . 0 c r 1 0 0 % 1 0 0 % 1 0 0 % i n t e n s i t y i n t e n s i t y 0 % b a o f f o f f o n 9 0 % 1 0 % t f t r t i m e d r i v i n g v o l t a g e s e t p o i n t c r = ( a / b ) p n e g a t i v e : p = - 1 p o s i t i v e : p = + 1 n o n - s e l e c t e d d o t s d o t s s e l e c t e d
64ch common driver for dot matrix lcd 6 interface pin connections pin no. symbol i/o type description 1 vss supply ground 2 vdd supply power supply 3 v0 supply lcd driver supply voltage 4 d/i data input/output pin of internal shift register ms shl dio1 dio2 h h output outpu t h l output output l h input output l l output input 5 r/w read or write rw description h data appears at db[7:0] and can be read by the cpu while e= h cs1b=l,cs2b=l and cs3=h. l displ ay data db[7:0] can be written at falling edge of e when cs1b=l, cs2b=l and cs3=h. 6 e enable signal e description h read data in db[7:0] appears while e= ?high?. l display data db[7:0] is latched at falling edge of e. 7 db0 8 db1 9 db2 10 db3 11 db4 12 db5 13 db6 14 db7 i/o data bus [0~7] bi - directional data bus 15 16 cs1 cs2 i chip selection when cs1=h,cs2=l, select ic1 when cs1=l,cs2=h, select ic2 17 resetb i reset signal. when rstb=l ?? 1 ?? on/off register becomes set by 0.(display off) ?? 2 ?? display start line register becomes set by 0 (z - address 0 set, display from line 0) ?? 3 ?? after releasing reset , this condition can be changed only by instruction. 18 vee power vee is connected by the sa me voltage. 19 a back - light anode 20 k back - light cathode
64ch common driver for dot matrix lcd 7 electrical absolute maximum ratings (ks0107b) parameter symbol rating unit note operating voltage v dd - 0.3 ~ +7.0 v *1 supply voltage v ee v dd - 19.0 ~ v dd +0.3 v *4 v b - 0 .3 ~ v dd +0.3 v *1,2 driver supply voltage v lcd v ee - 0.3 ~ v dd +0.3 v *3,4 *notes: *1. based on v ss = 0v *2. applies to input terminals and i/o terminals at high impedance. (except v0l, v1l, v4l, and v5l) *3. applies to v0l, v1l, v4l, and v5l. *4. voltage level: v dd ?y v0 ?y v1 ?y v2 ?y v3 ?y v4 ?y v5 ?y v ee dc electrical characteristics(ks0107b) (vdd= 4.5 to 5.5v, vss=0v,vdd - vee=8~17v,ta= - 30 to +85 ?? ) item symb ol condition min. typ . max. unit not e operating voltage v dd - 4.5 - 5.5 v v ih - 0.7 vdd - v dd *1 input voltage v il - v ss - 0.3v d d v oh i oh = - 0.4ma v dd - 0.4 - - *2 output voltage v ol i ol = 0.4ma - - 0.4 input leakage current i lkg v in = v dd ~ v ss - 1.0 - +1.0 a *1 osc frequency fosc rf=47k |?? 2% cf=20pf ? 5% 315 450 585 khz on resistance (vdiv - ci) r ons v dd - v ee =17v load cur rent ? 150 a - - 1.5 k |? i dd1 master mode 1/128 duty - - 1.0 ma *3 operating current i dd2 master mode 1/128 duty - - 0.2 *4 supply current i ee master mode 1/128 duty - - 0.1 *5 operating f op1 master mode external duty 50 - 600 khz frequency f op2 slave mode 0.5 - 1500 notes *1. applies to input terminals fs, ds1, ds2, cr, shl, ms and pclk2 and i/o terminals dio1, dio2, m , and cl2 in the input state. *2. applies to output terminals clk1, clk2 and frm and i/o terminals dio1, dio2, m , and cl2 in th e output state. *3. this value is specified about current flowing through v ss. internal oscillation circuit: rf=47k |? , cf=20pf each terminals of ds1, ds2, fs, shl, and ms is connected to v dd and out is no load. *4. this value is specified about current flowing through v ss. each terminals is ds1, ds2, fs, shl, pclk2 and cr is connected to v dd, ms is connected to v ss and cl2, m, dio1 is external clock. *5. this value is specified about current flowing through v ee, don?t connect to v lcd (v1~v5).
64ch common driver for dot matrix lcd 8 electrical absolute maximum ratings(ks0108b) parameter symbol rating unit note operating voltage v dd - 0.3 ~ +7.0 v *1 supply voltage v ee v dd - 19.0 ~ v dd +0.3 v *4 v b - 0.3 ~ v dd +0.3 v *1,3 driver supply voltage v lcd v ee - 0.3 ~ v dd +0.3 v *2 *notes: *1. based on v ss = 0v *2. applies the same supply voltage to v ee . v lcd =v dd - v ee. *3. applies to m, frm, clk1,clk2, cl, resetb, adc, cs1b, cs2b,cs3, e, r/ w, rs and db0~db7. *4. applies v0l,v2l,v3l and v5l. voltage level: v dd ?y v0 ?y v1 ?y v2 ?y v3 ?y v4 ?y v5 ?y v ee dc electrical characteristics(ks0108b) (vdd= 4.5 to 5.5v, vss=0v,vdd - vee=8~17v,ta= - 30 to +85 ?? ) item symbo l condition min. typ . max. unit not e operating voltage v dd - 4.5 - 5.5 v v ih1 - 0.7 vdd - v dd *1 input high voltage v ih2 - 2.0 - v dd *2 v il1 - 0 - 0.3v d d *1 input low voltage v il2 - 0 - 0.8 *2 output high voltage v oh i oh = - 0.2ma 2.4 - - *3 output low voltage v ol i ol = 1.6ma - - 0.4 *3 input leakage cu rrent i lkg v in = v ss ~ v dd - 1.0 - +1.0 a *4 three - state (off) input current i tsl v in = v ss ~ v dd - 5.0 - 5.0 *5 driver input leakage current i dil v in = v ee ~ v dd - 2.0 2.0 *6 on resistance (vdiv - ci) r ons v dd - v ee =15v load current ? 100 a - - 7.5 k |? *8 i dd1 during display - - 0.1 ma *7 operating current i dd2 during access access cycle=1mhz - - 0.5 *7 notes *1. cl, frm, m, rstb, clk1, clk2 *2. cs1b, cs2b, cs3, e, r/w, rs, db0~db7 *3. db0~db7 *4. except db0~db7 *5. db0~db7 at high impedance *6. v0, v1, v3, v3, v4, v5 *7. 1/ 64 duty , fclk=250khz, frame frequency=70hkz, output: no load *8. v dd - v ee =13.5v v0l>v2l>= v dd - 2/7(v dd - v ee )>v3l= v ee +2/7(v dd - v ee )>v5l
64ch common driver for dot matrix lcd 9 chapter 2 driver ic function description ks0107 driver ic 64com graphic driver for dot matrix lcd introduction the ks0107b is an :cd driver lsi with 64 channel outputs for dot matrix liquid crystal graphic display systems. this device provides 64 shift registers and 64 output drivers. it generates the timing signal to control the ks0108b (64 channel segment drover.). the ks0107b is fabricated by low power cmos high voltage process technology, and is composed of the liquid crystal display system in combination with the ks0108b (64 channel segment drover.). ac characteristics (vdd=4.5~5.5v, ta= - 30 ?? ~+85 ?? ) 1. master mode (ms=v dd , pcl k2=v dd , cf=20pf, rf=47k |? ) t whc t whc t wl t su t dh t su t d t d t dm t d21 t d12 t wh2 t wh1 t wl1 t r t f t r t f t dm t df cl2 dio1(shl=v dd dio2(shl=v dd ) dio1(shl=v ss ) frm m clk1 clk2 0.7v dd 0.7v dd 0.3v dd 0.3v dd characteristic symbol min typ max unit data setup time t su 20 - - data hold time t dh 40 - -
64ch common driver for dot matrix lcd 10 data delay time t d 5 - - frm delay time t df - 2 - 2 m delay time t dm - 2 - 2 cl2 low level wi dth t wlc 35 - - cl2 high level width t whc 35 - - s clk1 low level width t wl1 700 - - clk2 low level width t wl2 700 - - clk1 high level width t wh1 2100 - - clk2 high level width t wh2 2100 - - clk1 - clk2 phase difference t d12 700 - - clk2 - clk 1 phase difference t d21 700 - - clk1,clk2 rise/fall time t r /t f - - 150 ns slave mode (ms=v ss ) c l 2 ( p l k 2 = v s s ) c l 2 ( p l k 2 = v d d ) d i o 1 ( s h l = v d d ) d i o 2 ( s h l = v s s ) i n p u t d a t a d i o 1 ( s h l = v d d ) d i o 2 ( s h l = v s s ) o u t p u t d a t a t w l c 2 t w l c t w h c 1 0 . 3 v d d 0 . 7 v d d t w l c 1 t f t r t s u t r t f t d t h c l 0 . 7 v d d 0 . 3 v d d 0 . 3 v d d 0 . 7 v d d t h characteristics symbol min typ max unit note cl2 low level width t wlc1 450 - - pclk2=v ss cl2 high level width t whc1 150 - - pclk2=v ss cl2 low level width t wlc2 150 - - pclk2=v dd cl2 high level width t whl 450 - - pclk2=v dd data setup time t su 100 - - data hold time t dh 100 - - data delay time t d - - 200 *1 output data hold time t h 10 - - cl2 rise/fall time t r / t f - - 30 ns *1: connect load cl=30pf 30 pf output
64ch common driver for dot matrix lcd 11 functional description 1. rc oscillator the rc oscillator generates cl2, m, frm, of the ks0107b and clk1, clk2 of the ks0107b by the oscillation resister r and capacitor c. when selecting th e master/slave, oscillation circuit is as following: 1) master mode k s 0 1 0 7 b k s 0 1 0 7 b r r c r c r c c r f c f o p e n o p e n e x t e r n a l c l o c k 2) slave mode k s 0 1 0 7 b r c r c o p e n o p e n v d d 2. timing generation circuit it generates cl2, m, frm, clk1, and clk2 by the frequency from oscillation circuit. 1) selection of m aster/slave (m/s) when m/s is ? h ? , it generates cl2, m, frm, clk1, and clk2 internally. when m/s is ? l ? , it operates by receiving m, clk2 from master device. 2) frequency selection (fs) to adjust frm by 70hz, the oscillation frequency should be as following: fs oscillation frequenc y h f osc =430khz l f osc =215khz in the slave mode, it is connected to v dd.
64ch common driver for dot matrix lcd 12 3) duty selection (ds1, ds2) it provides various duty selection according to ds1, ds2. ds1 ds2 duty l 1/48 l h 1/64 l 1/96 h h 1/128 3. data shift & phase select control 1) phase selection it is a circuit to shift data on synchronization or rising edge or falling edge of the cl2 according to pclk2. pclk2 phase selection h data shift on rising edge of cl2 l data shift on falling edge of cl2 2) data shift dire ction selection when m/s is connected to vdd, dio1 and dio2 terminal is only output. when m/s is connected to vss, it depends on the shl. ms shl dio1 dio2 direction of data h output output c1~c64 h l output output c64~c1 h input output dio1~c1~c64~d io2 l l output input dio2~c64~c1~dio1
64ch segment driver for dot matrix lcd 13 chapter 3 driver ic function description ks0108 driver ic 64 seg graphic driver for dot matrix lcd introduction the ks0108b is an lcd driver lsi with 64 channel outputs for dot matrix liquid crystal graphic display systems. this device consists of the display ram, 64 bit data latch 64 bit drivers and decoder logics. it has the internal display ram for storing the display data transferred from a 8 bit micro controller and generates the dot matrix liquid crystal drivin g signals corresponding to stored data. the ks0108b composed of the liquid crystal display system in combination with the ks0107b(64 common driver). ac characteristics (v dd =4.5~5.5v ,v ss =0v, ta= - 30 ?? ~+85 ?? ) ? 1 ? clock timing characteristic symbol min typ max unit clk1, clk2 cycle time t cy 2.5 - 20 s clk1 ?? low ? level width t wl1 625 - - clk2 ?? low ? level width t wl2 625 - - clk1 ?? high ? level width t wh1 1875 - - clk2 ?? high ? level width t wh2 1875 - - clk1 - c lk2 phase difference t d12 625 - - clk2 - clk1 phase difference t d21 625 - - clk1, clk2 rise time t r - - 150 clk1, clk2 fall time t f - - 150 ns
64ch segment driver for dot matrix lcd 14 t f t f t w l 2 t c y t w h 2 t d 2 1 t d 1 2 t w l 1 t r t f t w h 1 t c y c l k 1 c l k 2 0 . 3 v d d 0 . 7 v d d 0 . 7 v d d 0 . 3 v d d ? 2 ? .display control timing characteristic symbol min typ max unit frm delay time t df - 2 - 2 m delay time t dm - 2 - 2 cl ?? low ? level width t wl 35 - - cl ?? high ? level width t wh 35 - - us t w l t w h t d f t d f t d m 0 . 7 v d d 0 . 3 v d d 0 . 3 v d d 0 . 7 v d d 0 . 3 v d d 0 . 7 v d d m f r m c l
64ch segment driver for dot matrix lcd 15 ? 3 ? . mpu interface characteristic symbol min typ max unit e cycle t c 1000 - - e high level width t wh 450 - - e l ow level width t wl 450 - - e rise time t r - - 25 e fall time t f - - 25 address set - up time t asu 140 - - address hold time t ah 10 - - data set - up time t su 200 - - data delay time t d - - 320 data hold time (write) t dhw 10 - - data hold time (read) t dhr 20 - - ns t d s u t d h w t a s u t a s u t a h t a h t r t f t w l t w h t c d b 0 ~ d b 7 c s 1 b , c s 2 b c s 3 , r s r / w e m p u w r i t e t i m i n g
64ch segment driver for dot matrix lcd 16 t w l t c t f t r t a h t a h t a s u t a s u t w h t d t w h m p u r e a d t i m i n g d b 0 ~ d b 7 c s 1 b , c s 2 b c s 3 , r s r / w e operating principles & methods 1. i/o buffer input buffer controls the status between the enable and disable of chip. unless the cs1b to cs3 is in active mode, input or output of da ta and instruction does not execute. therefore internal state is not change. but rstb and adc can operate regardless cs!b - cs3. 2. input register input register is provided to interface with mpu which is different operating frequency. input register stores the data temporarily before writing it into display ram. when cs1b to cs3 are in the active mode, r/w and rs select the input register. the data from mpu is written into input register. then writing it into display ram. data latched for falling of the e signa l and write automatically into the display data ram by internal operation. 3. output register output register stores the data temporarily from display data ram when cs1b, cs2b and cs3 are in active mode and r/w and rs=h, stored data in display data ram is la tched in output register. when cs1b to cs3 is in active mode and r/w=h , rs=l, status data (busy check) can read out. to read the contents of display data ram, twice access of read instruction is needed. in first access, data in display data ram is latched into output register. in second access, mpu can read data which is latched. that is to read the data in display data ram, it needs dummy read. but status read is not needed dummy read.
64ch segment driver for dot matrix lcd 17 rs r/w function l instruction l h status read (busy check) l da ta write (from input register to display data ram ) h h data read (from display data ram to output register) 4. reset the system can be initialized by setting rstb terminal at low level when turning power on, receiving instruction from mpu. when rstb becomes low, following procedure is occurred. 1. display off 2. display start line register become set by 0.(z - address 0) while rstb is low, no instruction except status read can by accepted. therefore, execute other instructions after making sure that db4= (clea r rstb) and db7=0 (ready) by status read instruction. the conditions of power supply at initial power up are shown in table 1. table 1. power supply initial conditions item symbol min typ max unit reset time t rs 1.0 - - us rise time t r - - 200 ns 0 . 3 v d d 0 . 7 v d d v d d r s t b t r t r s 4 . 5 [ v ] 5. busy flag busy flag indicates that ks0108b is operating or no operating. when busy flag is high, ks0108b is in internal operating . when busy flag is low, ks0108b can accept the data or instruction. db7indicates busy flag of the ks010 8b. b u s y f l a g e t b u s y f c l k i s c l k 1 , c l k 2 f r e q u e n c y 1 / f c l k < t b u s y < 3 / f c l k
64ch segment driver for dot matrix lcd 18 6. display on/off flip - flop the display on/off flip - flop makes on/off the liquid crystal display. when flip - flop is reset (logical low), selective voltage or non selective voltage appears on segment output terminals. when flip - flop is set (logic high), non selective voltage appears on segment output terminals regardless of display ram data. the display on/off flip - flop can changes status by instruction. the display data at all segment disappear while rstb is low. the status of the flip - flop is output to db5 by status read instruction. the display on/off flip - flop synchronized by cl signal. 7. x page register x page register designates pages of the internal display data ram. count function is not available. an address is set by inst ruction. 8. y address counter y address counter designates address of the internal display data ram. an address is set by instruction and is increased by 1 automatically by read or write operations of display data. 9. display data ram display data ram stores a d isplay data for liquid crystal display. to indicate on state dot matrix of liquid crystal display , write datra1. the other way , off state, writes 0. display data ram address and segment output can be controlled by adc signal. adc=h => y - address 0: s1~y a ddress 63: s64 adc=l => y - address 0: s64~yaddress 63: s1 adc terminal connect the v dd or v ss . 10. display start line register the display start line register indicates of display data ram to display top line of liquid crystal display. bit data (db<0.5>) of the display start line set instruction is latched in display start line register. latched data is transferred to the z address counter while frm is high, presetting the z address counter. it is used for scrolling of the liquid crystal display screen.
64ch segment driver for dot matrix lcd 19 display control instruction the display control instructions control the internal state of the ks0108b. instruction is received from mpu to ks0108b for the display control. the following table shows various instructions. instruction rs rw db7 db6 db5 db4 db3 db2 db1 db0 function read display date 1 1 read data reads data (db[7:0]) from display data ram to the data bus. write display date 1 0 write data writes data (db[7:0]) into the ddram. after writing instruction, y address is incriminated by 1 aut o matically status read 0 1 bus y 0 on/ off re - set 0 0 0 0 reads the internal status busy 0: ready 1: in operation on/off 0: display on 1: display off reset 0: normal 1: reset set address (y address) 0 0 0 1 y address (0~63) sets the y address at the column address cou nter set display start line 0 0 1 1 display start line (0~63) indicates the display data ram displayed at the top of the screen. set a d dress (x address) 0 0 1 0 1 1 1 page (0~7) sets the x address at the x address register. display on/off 0 0 0 0 1 1 1 1 1 0/1 controls the display on or off. the internal status and the ddram data is not affected. 0: off, 1: on 1. display on/off the display data appears when d is 1 and disappears when d is 0. though the data is not on the screen with d=0, it remains in the display data ram. therefore, you can make it appear by changing d=0 into d=1. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 1 1 1 1 1 d 2. set address (y address) y address (ac0~ac5) of the display data ram is set in the y address counter. an address is se t by instruction and increased by 1 automatically by read or write operations of display data. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 1 ac5 ac4 ac3 ac2 ac1 ac0
64ch segment driver for dot matrix lcd 20 3. set page (x address) x address (ac0~ac2) of the display data ram is set in the x addres s register. writing or reading to or from mpu is executed in this specified page until the next page is set. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 1 0 1 1 1 ac2 ac1 ac0 4. display start line (z address) z address (ac0~ac5) of the display data ram is se t in the display start line register and displayed at the top of the screen. when the display duty cycle is 1/64 or others (1/32~1/64), the data of total line number of lcd screen, from the line specified by display start line instruction, is displayed. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 1 1 ac5 ac4 ac3 ac2 ac1 ac0 5. status read rs r/w db7 db6 db5 db4 db3 db2 db1 db0 1 0 busy 0 on/off reset 0 0 0 0 l busy when busy is 1, the chip is executing internal operation and no instructions are accepted. when busy is 0, the chip is ready to accept any instructions. l on/off when on/off is 1, the display is on. when on/off is 0, the display is off. l reset when reset is 1, the system is being initialized. in this condition, no instructions except status read can be accepted. when reset is 0, initializing has finished and the system is in the usual operation condition. 6. write display data writes data (d0~d7) into the display data ram. after writing instruction, y address is increased by 1 automatically. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 1 0 d7 d6 d5 d4 d3 d2 d1 d0 7. read display data reads data (d0~d7) from the display data ram. after reading instruction, y address is increased by 1 automatically. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 1 1 d7 d6 d5 d4 d3 d2 d1 d0

▲Up To Search▲

Price & Availability of ATM12864D

	To Download ATM12864D Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .