1 outline dimension JRM-12232E 122*32dots( ? ) stn/yellow green 1/32duty 1/5bias 2 pin connections n o . s y m b o l f u n c t i o n 1 v s s g r o u n d ( 0 v ) 2 vdd supply v o ltage for logic (+5v or +3.0v) 3 v o contrast adjustm e n t 4 a 0 d a t a / i n s t r u c t i o n s e l e c t 5 r / w read/w r i t e s e l e c t 6 e e n a b l e s i g n a l 7~14 db0-db7 da t a bus l i n e 15 leda led supply v o ltage + (5v) 1 6 l e d k led supply v o ltage (0v) tel:0755-83746588 83999468 f ax:0755-83998518 1 ??? http://www .jiurilcd.com
3 block diagram & interf ace vdd vss st7 920 s t 79 21 vo 64 a0 ,r/ w , e db0-db7 48 lcd panel 122x32 dots lcm lcd bias circ uit c1--32 4 power suppl y lcd bias ci rcui t lc d module vd d + 5 v vss lcd bias ci rcui t lcd module vd d + 3 v vs s vr vr 5v power i n pu t 3 v powe r i n p u t tel:0755-83746588 83999468 f ax:0755-83998518 2 ??? http://www .jiurilcd.com
5 electro-optical characteristics p a r a m e t e r s y m b o l c o n d i t i o n m i n t y p m a x unit note ----- electr o nic characteristics ----- logic c i r c u i t supply v o ltage v d d - v s s - - 3 . 0 5 . 0 5 . 5 v 0 c - - - - - - 25 c - - 5 . 0 - - lcd driving v o ltage (norm a l t e m p. type) vdd-vo 50 c - - - - - - v v i h - - 0 . 7 vdd - - v d d v input v o ltage v i l - - v s s - - 0 . 3 v d d v logic supply current idd vdd = 5v - - 1 2 m a ----- t e mperatur e characteristics ----- t op o p e r a t i n g t e m p . 0 5 0 c norm al tem p. type t stg s t orage t e m p . - 1 0 6 0 c t op o p e r a t i n g t e m p . - 2 0 7 0 c extended tem p. type t stg s t orage t e m p . - 3 0 8 0 c ----- led back-light characteristics ----- p a r a m e t e r s y m b o l c o n d i t i o n m i n t y p m a x unit note forward v o l t a g e v f - - 3 . 8 4 . 2 4 . 5 v supply v o l t a g e between a&k forward c u r r e n t i f v f = 4 . 0 5 v - - 9 0 - - m a bare led lum i nous intensity vf=4.05v -- 1 10 -- cd/m 2 lcm lum i nous intensity vf=4.05v -- 30 -- cd/m 2 tel:0755-83746588 83999468 f ax:0755-83998518 3 ??? http://www .jiurilcd.com
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