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da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . anshan yes opt o electronics displa y co.,l td specifica t ions for liquid cr yst al displa y module model no.: yms204-03aba ydcl da te: mar. 10, 2003 a p p r o v e d c h e c k e d d e p a r t m e n t c u s t o m e r : model no.: da te: a p p r o v e d c h e c k e d d e p a r t m e n t add: 215# qianshan road,ans han liaoning p . r.china tel: 86-412-5212122 f ax: 86-412-521 1729 p . c.:1 14044 e-mail : santlcd @ mail.asptt.ln.cn , sante @ asiansources.com s pecifica tion lcm yes yms204-03aba ydcl pa ge 1 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . list . general specif ications -----------------------------------------------------(3-5) . the characteristics and reliability t e st -------------------------------(6-7) . the equipment and lcd measuring me thod------------------------(8-9) . instruction se ts ----------------------------------------------------------(10-12) . standard specifications fo r product qua lity-------------------------(13-14) . attached drawing ----------------------------------------------------- (15-16) s pecifica tion lcm yes yms204-03aba ydcl pa ge 2 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . .general specifications 1. features a. low power consumption 5.0v power supply c. 1/16 duty , 1/5 bias b. v i ewing direction:6:00 d. operating tempration:0~50 e. storage tempration:-20~70 f . display mode: stn mode, positive type display 2.mechanical data and conditions: (1) number of characters ------------ 20 characte rs* 4 line (2) module si ze---------------------------98.0 w * 60.0 h mm (3) v i ewing area ------------------------ 76. 0 w * 25.2 h mm (4) dot size ----------------------------0.55 w *0 .55 h mm (5) character size -----------------------2.95 w * 4.75 h mm (6) outline dimens ions------------------see atta ched drawing 3.pin connections: pin no. symbol function 1 v s s ground(0v) 2 v d d logic supply v o ltage(+5.0v) 3 v e e lcd driver v o ltage input 4 r s data/instruction register select 5 r / w read/w r ite select 6 e enable signal 7 - 1 4 d b 0 - d b 7 data bus line 1 5 - 1 6 l e d + , - led backlight s pecifica tion lcm yes yms204-03aba ydcl pa ge 3 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . 4. absolute max i mum ratings c h a r a c t e r i s t i c s s y m b o l r a t i n g s operating v o ltage vdd -0.3v to +7.0v driver supply v o ltage v l c d vdd-12v to vdd+0.3v input v o ltage range v i n -0.3v to vdd+0.3v 5.t i ming characteristics: (vdd=4.5 to 5.5v) w r ite operation i t e m s y m b o l m i n . t y p . m a x . u n i t enable cycle time t cy cle 4 0 0 - - - - n s enable pulse width p we h 1 5 0 - - - - n s enable rise & fall time t er ,t ef - - - - 2 5 n s address set-up time t as 3 0 - - - - n s address hold time t ah 1 0 - - - - n s data set-up time t dsw 4 0 - - - - n s data hold time t h 1 0 - - - - n s read operation i t e m s y m b o l m i n . t y p . max . u n i t enable cycle time t cy cle 4 0 0 - - - - n s enable pulse width p we h 1 5 0 - - - - n s enable rise & fall time t er ,t ef - - - 2 5 n s address set-up time t as 3 0 - - - - n s address hold time t ah 1 0 - - - - n s data output delay time t dsw - - - 1 0 0 n s data hold time t h 2 0 - - - - n s s pecifica tion lcm yes yms204-03aba ydcl pa ge 4 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . w r ite operation: rs r / w t as t ah t ah p we h t ef e t er t dsw t h d b 0 ? d b 7 v a l i d d a t a t cy cle read operation r s r / w t as t ah t ah p we h t ef e t er t dsw t h d b 0 ? d b 7 v a l i d d a t a t cy cle s pecifica tion lcm yes yms204-03aba ydcl pa ge 5 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . .the characteristics and reliability t est 1.electro-optic characteristics(module unit): condition:temp=(23 3) n o i t e m s y m b o l m i n . t y p . m a x . u n i t c o n d i t i o n 1 s u p p l y v o l t a g e ( l o g i c ) v d d - v s s 4 . 5 5 . 0 5 . 5 v 25 2 supply current (logic) idd m a v d d = 5 v 4 . 9 v 0 4 . 7 v 25 3 lcd operating v o ltage vdd-v 0 4 . 5 v 50 t o n 1 7 1 m s 25 4 response t i me t o f f 9 2 m s 25 5 c o n t r a s t c r 3 12h 1 4 9 6h 2 7 1 3h 3 6 0 6 v i ewing angel 9h 4 6 0 deg. (cr 3.0) 7 lcd threshold v o ltage vth 3.72 v 25 2.absolute max i mum ratings(led unit): i t e m s y m b o l t y p . m a x . u n i t c o n d i t i o n forward current ifm 360 ma ta=25 reverse voltage vr 8 v ta=25 power dissipation pd 1800 mw ta=25 3.electrical-optical characteristics(led unit): l t e m s y m b o l m i n t y p m a x u n i t c o n d i t i o n f o r w a r d v f 3 . 8 4 . 0 4 . 2 v i f = 1 8 0 m a reverse current ir 1800 ua vr=8v s pecifica tion lcm yes yms204-03aba ydcl pa ge 6 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . 4.reliability test no items test condition equipment t e s t result 1 high t e mp storage te m p : 7 0 2 t i me:96h restore:24h t e n n y p a s s e d 2 low t e mp storage te m p : - 2 0 3 t i me:96h restore:24h t e n n y p a s s e d 3 high t e mp static drive te m p : 5 0 2 v o p:5v t i me:24h restore:24h t e n n y p a s s e d 4 low t e mp static drive te m p : 0 3 v o p:5v t i me:24h restore:24h t e n n y p a s s e d 5 high t e mp high hum storage te m p : 4 0 2 hum:95%rh t i me:96h restore:24h t e n n y p a s s e d te m p : ( ) 7 0 2 5 - 2 0 3 0 5 3 0 5 6 thermal shock 5 c y c l e s restore:24h tenny passed s pecifica tion lcm yes yms204-03aba ydcl pa ge 7 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . .the equipment and lcd measuring method 1. equipment l 3 0 oscilloscope w a veform generator 2. definition (1). threshold v o ltage (vth) b r i g h t n e s s 100% 9 0 % 0 v t h d r i v e v o l t a g e s pecifica tion lcm yes yms204-03aba ydcl pa ge 8 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . (2). response t i me o n o f f 9 0 % 1 0 % t i m e t r t d ( 3 ) . v i e w i n g a n g l e : z 1 y 12h, =90 9 h , =180 4 3 x 3 h , =0 2 6 h , =270 (4).contrast ratio (positive) brightness of non-selected wave-form cr= brightness of selected wave-form 3. reliability t e st: equipment : tenny s pecifica tion lcm yes yms204-03aba ydcl pa ge 9 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . .instruction sets 1.instruction t able instruction code in stru ctio n r s r w db7 db6 db5 db4 d b 3 d b 2 db1 d b 0 descrip tio n execu tio n time(fosc= 270khz) cl ea r display 0 0 0 0 0 0 0 0 0 1 w r it e?2 0 h ? t o dd rm an d set dd ram ad dr ess t o ?0 0 h ? from ac 1.52ms ret u r n home 0 0 0 0 0 0 0 0 1 - set d d r a m ad dr es s to ?0 0h ?fro m ac a nd ret u rn c u rs or to its o r igi nal po siti on i f sh ifte d. t he c ont e n ts of d d r a m ar e n o t changed. 1.52ms en try mo de set 0 0 0 0 0 0 0 1 i / d s assi g n c u r s or mov i n g dir e ct i on an d en a b l e the s h ift of enti r e display 38us dis p l a y on/off control 0 0 0 0 0 0 1 d c b set display ( d ) , c u r s o r (c), an d b l in ki ng of curs or (b) on/ of f control bit. 38us cur s o r or dis p l a y shift 0 0 0 0 0 1 s / c r / l - - set cur s o r mov i n g an d dis p la y shift co ntro l bit, a nd t h e dir e ct i on, w i th o u t cha ngi ng o f d d r a m data. 38us f u n c ti on set 0 0 0 0 1 d l n f - - set i n t e rfa c e dat a l eng th (dl : 8-bi t/4 b i t ), nu mb ers of di sp l a y li ne (n: 2 - l i n e/1 l i n e) an d, dis p la y f o nt t y p e (f :5*10dots/5*8dot) 38us set cgra m address 0 0 0 1 a c 5 a c 4 a c 3 a c 2 a c 1 a c 0 set cg ram ad dr es s in address counter 38us set dd ram address 0 0 1 a c 6 a c 5 a c 4 a c 3 a c 2 a c 1 a c 0 set d d r a m ad dr es s in counter 38us r ead busy fl ag a nd ad dr ess counter 0 1 bf a c 6 a c 5 a c 4 a c 3 a c 2 a c 1 a c 0 w het h e r dur i n g int e r n a l op er a t io n or n o t can be kno w n by re ad in g bf . t h e co nte n ts of ad dr es s co unt er c a n al so be read. w r it e dat a to ram 1 0 d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 w r it e d a ta int o internal ram (ddrm/cgram). 38us r ead d a ta from ram 1 1 d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 re a d d a t a from internal ram (ddram/cgram). 38us s pecifica tion lcm yes yms204-03aba ydcl pa ge 10 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . 2.reset function (1).8-bit interface p o w e r o n w a i t t i m e > 1 5 m s w a i t t i m e > 4 0 m s a f t e r v d d > 4 . 5 v a f t e r v d d > 2 . 7 v rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be check ed before this instruction. 0 0 0 0 1 1 * * * * f unction set(interface is 8 bits length.) w a i t t i m e > 4 . 1 m s rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be check ed before this instruction. 0 0 0 0 1 1 * * * * f unction set(interface is 8 bits length.) w a it time>100us rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be check ed before this instruction. 0 0 0 0 1 1 * * * * f unction set(interface is 8 bits length.) b f c a n b e c h e c k e d a f t e r t h e f o l l o w i n g i n s t r u c t i o n s . f unction se t(interface is 8 bits length. specify the number of display lines and character font.) t he number of display lines and character font cannot be changed afterw ards. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 1 1 n f * * 0 0 0 0 0 0 1 0 0 0 d i s p l a y o f f 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 i / d s d i s p l a y c l e a r i n i t i a l i z a t i o n e n d s entry mode set s pecifica tion lcm yes yms204-03aba ydcl pa ge 11 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . (2).4-bit interface power on w a i t t i m e > 1 5 m s w a i t t i m e > 4 0 m s a f t e r v d d > 4 . 5 v a f t e r v d d > 2 . 7 v rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 f u n c t i o n s e t ( i n t e r f a c e i s 8 b i t s l e n g t h . ) w a i t t i m e > 4 . 1 m s rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 f u n c t i o n s e t ( i n t e r f a c e i s 8 b i t s l e n g t h . ) w a it time>100us rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 f u n c t i o n s e t ( i n t e r f a c e i s 8 b i t s l e n g t h . ) b f c a n b e c h e c k e d a f t e r t h e f o l l o w i n g r s r / w d b 7 d b 6 d b 5 d b 4 i n s t r u c t i o n s . 0 0 0 0 1 0 f u n c t i o n s e t ( s e t i n t e r f a c e t o b e 4 b i t s 0 0 0 0 1 0 length)interface is 8 bits length. 0 0 n f * * f u n c t i o n s e t ( i n t e r f a c e i s 4 b i t s l e n g t h . 0 0 0 0 0 0 s p e c i f y t h e n u m b e r o f t h e d i s p l a y l i n e s 0 0 1 0 0 0 and character font.) 0 0 0 0 0 0 t h e n u m b e r o f d i s p l a y l i n e s a n d c h a r a c t e r 0 0 0 0 0 1 font cannot be changed afterwards. 0 0 0 0 0 0 d i s p l a y o f f 0 0 0 1 i / d s d i s p l a y c l e a r entry mode set i n i t i a l i z a t i o n e n d s s pecifica tion lcm yes yms204-03aba ydcl pa ge 12 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . .standard specifications for product quality 1. manner of t e st: 1.1. the t e st must be under 40w f l ourescent light , and th e distance o f v i ew m u s t be at 30cm. 1.2.the t e st direction is based on around 15 - 45 of v e rtical line. 2. definition of defects 2 . 1 m a j o r d e f e c t s a:non-display b:segment missing c : o v e r c u r r e n t d:segment short e:sealant dishardexn f:w r ong polarizer direction 2.2minor defects: the others. 3.major defects should be in aql 0.25,and the minor in aql 1.00 s pecifica tion lcm yes yms204-03aba ydcl pa ge 13 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . 4.inspection item and standards item the standard of quality inspection check i ng manner quality ratio frame smooth and even surface,no crack,no scratch,no rusty,and not be wrenched out of shape.the range between convex and concave is:d 0.35mm,and the frame must be connected to the ground. checking with eyes and using vernier caliper, multimeter 100% lcd the major defects would be reject.no scratch and no dusty on the lcd glass surface.d 0.15mm n 2 diameter of bubble:d 0.5 n 2 damaged size of polarizer:d 0.15mm, n 2. check it when displaying 100% the relative position of lcd and frame the sealant mouth of the lcd must be at the same side with the frame?s. checking with eyes 100% the relative position of pcb paneland frame the frame installing direction must be correct.the twisted angle of the pin is from 45 to 60 ,the pin is vertical to pcb panel and it must be in the middle position of the installing holes. checking with eyes 100% function test 1. the major defects must be reject. 2. test flow chart (see attached chart) 3. background changes evenly and no disorderly displaying phenomenon. 4. display no shortage. check it when displaying 100% note:d diameter n quantity unit:mm s pecifica tion lcm yes yms204-03aba ydcl pa ge 14 of 16
da te mar. 10, 2003 -1 t echnical anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module . s pecifica tion lcm yes yms204-03aba ydcl pa ge 15 of 16
da te mar. 10, 2003 -1 t echnical s pecifica tion lcm yes yms204-03aba ydcl pa ge 16 of 16 anshan yes opt o electronics displa y co.,l td specifica tions for liquid cr yst a l displa y module .

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