led backlight dd com 0.4 1.0 -- dd 0.8 max. input voltage v+ 0.3 -0.3 v c16 power circuit electrical characteristics c1 v v dd v o /wr(r/w) db0~db7 /cs2 v ss /cs1 rst cl /rd(e) a0 input high voltage block diagram lcd driving voltage supply current output high voltage output low voltage input low voltage operating temp. storage temp. com | item seg seg leda ledk sed1520daa to lsi or eqv. sed1520daa or eqv. lcd panel 122 x 32 dots = 3.0ma = - 3.0ma -20 ( v -20 ol v i ol s1----s61 v - v dd dd i o ta=25 = 5.0v dd c oh symbol v v oh il v ih i stg opr i t t condition test -- -- -- 0 s62----s122 -- -- | c32 c17 6.5 0.5 =5v a 0.25v ) 2.0 2.4 - 0.3 min. dd -- -- -- typ. v v 70 80 dd absolute maximum ratings LG122321 supply voltage(lcd) supply voltage(logic) item -0.3 -0.3 min. symbol dd dd v v- v - v o ss max. 13.5 7.0 122 x 32 dots dot pitch ( w x h ) v 0.44 x 0.49 mm led backlight specifications (ta=25 reset, h >l:80 mpu, l >h:68 mpu power supply for led backlight data bus line _ /wr for 80 mpu, r/w for 68 mpu external clock input ( 2khz ) chip selection for ic2, active "l" chip selection for ic1, active "l" /rd for 80 mpu, e for 68 mpu operating voltage for lcd power supply for logic h : data, approx. 30 / 40 0.40 x 0.45 h/l 15 db5 emission wave length forward voltage forward current ledk leda rst db7 db6 20 item 17 19 18 16 f i p 0v h/l h/l +5v h/l v symbol f weight (reflective/led) pin connections db3 db4 ss cl db0 db2 db1 /wr(r/w) /rd(e) /cs2 /cs1 dd o dot size ( w x h ) symbol v a0 4 ma v 9 12 13 14 11 10 7 8 5 6 v v v unit c c 3 2 1 pin v v v h/l h/l h/l h/l h/l h/l -- h/l h/l l l level +5v -- 0v gnd v nm ma unit 120 -- 568 -- 4.1 typ. max. 4.3 _ c) mm l : instruction code function g 60.5 x 18.5 84.0 x 44.0 x 9.5/13.5 nominal dimensions viewing area ( w x h ) module size ( w x h x t ) mechanical data item v v unit mm unit mm free datasheet http://
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