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displaytronic xiamen zettler electronics co., ltd. specifications for liquid crystal display ACM2002E series character module ver1.1 customer approval 1.polarizer options: r=reflective f=transflective n=transmissive negative m=transmissive positive 2.backlight options: n=none e=el l=led (y-g ) c=ccfl 3. backlight color: a= amber b= blue g= green w=white r= red rgb= red+green+blue 4.fluid options: t=tn f=fstn y=stn-yellow green g=stn-gray b=stn-blue 5. viewing direction: b=bottom view(6 o?clock) t=top view(12 o?clock) 6.temperature range: s=standard temperature range h=dual power,wide temperature range w=single power,wide temperature range 7.others requirement: part no. : approval company chop customer comments displaytronic engineering approval design by checked by approved by
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 1 revision record revision revision date page contents ver1.1 15/6-2006 modify the cover,add content and revision record.
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 2 contents 1.0 mechanical specs 2.0 absolute maximum ratings 3.0 electrical characteristics 4.0 optical characteristi cs (ta=25oc, vdd= 5.0v0.25v, tn lc fluid) 4.1 optical characteristi cs (ta=25oc, vdd= 5.0v0.25v, stn lc fluid) 5.0 block diagram 6.0 pin assignment 7.0 power supply 8.0 timing characteristics 9.0 mechanical diagram 10.0 reliability test 11.0 display instruction table 12.0 standard character patterns
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 3 1.0 mechanical specs 1. overall module size 116.0mm(w) x 37.0mm(h) x max 13.5mm(d) for led backlight version 116.0mm(w) x 37.0mm(h) x max 9.5mm(d) for reflective version 2. viewing display area 83.0mm(w x 18.6mm(h) 3. dot size 0.60mm(w) x 0.65mm(h) 4. dot pitch 0.65mm(w) x 0.70mm(h) 5. duty 1/16 6. controller ic splc780d or compatible 7. lc fluid options tn, stn 8. polarizer options reflecti ve, transflective, transmissive 9. backlight options led 10. temperature range options standard(0oc ~ 50oc), wide(-20oc ~ 70oc) 2.0 absolute maximum ratings item symbol min typ max unit operating temperature (standard) top 0 - 50 oc storage temperature (standard) tst -10 - 60 oc operating temperature (wide temperature) top -20 - 70 oc storage temperature (wide temperature) tst -30 - 80 oc input voltage vin vss vdd v supply voltage for logic vdd- vss 2.7 5.0 5.5 v supply voltage for lcd drive vdd- vo 3.0 4.6 6.5 v
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 4 3.0 electrical characteristics item symbol condition min typ max unit input voltage (high) vih h level 2.2 - vdd v input voltage (low) vil l level 0 - 0.6 v 0oc - 4.8 5.4 25oc 4.2 4.6 - recommended lcd driving voltage (standard temp) vdd - vo 50oc 3.9 4.3 - v -20oc - 6.4 7.2 0oc - 4.8 - 50oc - 4.3 - recommended lcd driving voltage (wide temp) vdd -vo 70oc 3.6 4.1 - v power supply current idd vdd=5.0v, fosc=270khz - 1.0 1.8 ma va-vk vf if=140ma 4.0- 4.2 4.4- v led yelllow -green luminous intensity iv if=140ma 200 cd/ O va-vk vf if=20ma 2.8 3.1 3.4 v led white luminous intensity iv if=20ma 30 cd/m 2 4.0 optical characteristics (ta=25oc, vdd= 5.0v 0.25v, tn lc fluid) item symbol condition min typ max unit viewing angle (horizontal) cr 4.0 -25 - - deg viewing angle (vertical) cr 4.0 -30 - 30 deg contrast ratio cr =0 , =0 - 2 - response time (rise) tr =0 , =0 - 120 150 ms response time (fall) tf =0 , =0 - 120 150 ms 4.1 optical characteristics (ta=25oc, vdd= 5.0v 0.25v, stn lc fluid) item symbol condition min typ max unit viewing angle (horizontal) cr 2.0 -60 - 35 deg viewing angle (vertical) cr 2.0 -40 - 40 deg contrast ratio cr =0 , =0 - 6 - response time (rise) tr =0 , =0 - 150 250 ms response time (fall) tf =0 , =0 - 150 250 ms
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 5 5.0 block diagram u1 u2 lcd20x2 led backlight 1.vss 2.vdd 3.vo 4.rs 5.r/w 6.e 7.db0 14.db7 ~~ 15 bl+ 16 bl- seg41-100 seg1-40 com16 8 16 seg1 com1 seg100 com1 40 60
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 6 6.0 pin assignment 7.0 power supply pin no. symb ol function note 1 vss ground 2 vdd +5v 3 vo lcd contrast adjust 4 rs register select 5 r/w read / write 6 e enable 7 db0 data bit 0 8 db1 data bit 1 9 db2 data bit 2 10 db3 data bit 3 11 db4 data bit 4 12 db5 data bit 5 13 db6 data bit 6 14 db7 data bit 7 15 bl+ power supply for bl anode 16 bl- power supply for bl cathode 8.0 timing characteristics item symbol test condition min. typ. max. unit enable cycle time t c fig. a, fig. b 500 - - ns enable pulse width t w fig. a, fig. b 220 - - ns enable rise/fall time t r , t f fig. a, fig. b - - 25 ns rs, r/w set up time t su fig. a, fig. b 40 - - ns rs, r/w hold time t h fig. a, fig. b 10 - - ns data delay time t d fig. b - - 120 ns data set up time t dsu fig. a 60 - - ns data hold time t dh fig. a, fig. b 20 - - ns vss vo vdd vr +5v s tandard temp range vss vo vdd vr +5v w ide temp range -5v vr = 10k ~ 20k
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 7 v ih1 v il1 v il1 ih1 il1 v v v ih1 v il1 v il1 v ih1 il1 v v ih1 il1 v valid data t su t h t w t h t f t r t dsu t dh t c rs r/w e db0~db7 v il1 v ih1 v il1 fig. a interface timing (data write) v ih1 v il1 v ih1 ih1 il1 v v v ih1 v il1 v ih1 v ih1 il1 v v ih1 il1 v valid data t su t h t w t h t f t r t dsu t dh t c rs r/w e db0~db7 v il1 t d v ih1 il1 v fig. b interface timing (data read)
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 8 9.0mechanicaldiagram
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 9 10.0 reliability test evaluations and assessment* storage condition content current consumption oozing contrast other appearances operation at high temperature and humidity 40oc,90% rh,240hrs twice initial value or less none more than 80% of initial value no abnormality high temperature storage 60oc, 240hrs twice initial value or less none more than 80% of initial value no abnormality low temperature storage -20oc , 240hrs twice initial value or less more than 80% of initial value no abnormality *evaluations and assessment to be made two hours after returning to room temperature (25 oc5 oc). *the lcds subjected to the test must not have dew condensation.
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 10 11.0 display instruction table command r s r/ w db 7 db 6 db 5 db 4 db 3 db 2 db 1 db 0 description executing time fosc=250khz clear display 0 0 0 0 0 0 0 0 0 1 clears display & returns to address 0. 1.64ms cursor at home 0 0 0 0 0 0 0 0 1 x returns cursor to address 0. also returns the display being shifted to the original position. ddram contents remain unchanged. 1.64ms entry mode set 0 0 0 0 0 0 0 1 i/d s i/d: set cursor moving direction i/d=1: increment i/d=0: decrement s: specify shift of display s=1: the display is shifted s=0: the display is not shifted 40s display on/off control 0 0 0 0 0 0 1 d c b display d=1: display on d=0: display off cursor c=1: cursor on c=0: cursor off brink b=1: brink on b=0: brink off 40s cursor / display shift 0 0 0 0 0 1 s/c r/l x x moves cursor or shifts the display w/o changing dd ram contents s/c=0: cursor shift (ram unchanged) s/c=1: display shift (ram unchanged) r/l=1: shift to the right r/l=0: shift to the left 40s function set 0 0 0 0 1 dl n f x x sets data bus length (dl), # of display lines (n), and character fonts (f). dl=1: 8 bits f=0: 5x7 dots dl=0: 4 bits f=1: 5x10 dots n=0: 1 line display n=1: 2 lines display 40s set cg ram address 0 0 0 1 character generator (cg) ram address sets cg ram address. cg ram data is sent and received after this instruction. 40s set dd ram address 0 0 1 display data (dd) ram address / cursor address sets dd ram address. dd ram data is sent and received after this instruction. 40s busy flag / address read 0 1 b f address counter used for both dd & cg ram address reads busy flag (bf) and address counter contents. 40s write data 1 0 write data writes data into ddram or cgram. 46s read data 1 1 read data reads data from ddram or cgram. 46s x: don't care.
ACM2002E series character module ver1.1 displaytronic xiamen zettler electronics co., ltd. 11 12.0 standard character patterns note: the character generator ram is the ram with whic h the user can rewrite character patterns by program.

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