mechanical data block diagram h/l db4 11 14 13 12 db7 db6 db5 h/l h/l h/l in 8-bit bus mode, used as high order bidirectional data bus. in 4-bit bus mode, used as both high and low order data bus. 0v ss v 1 10 9 8 7 6 5 4 3 2 h/l r/w db1 db3 db2 db0 h/l h/l h/l h/l rs v o v dd h/l +5v -- pin weight dot size ( w x h ) character size ( w x h ) viewing area ( w x h ) module size ( w x h x t ) pin connections symbol level item gnd operating voltage for lcd in 8-bit bus mode, used as low order bidirectional data bus. in 4-bit bus mode, open these pins. l : write power supply for logic l : instruction code h : data h : read function nominal dimensions g mm mm mm mm unit 8 characters x 2 lines LC082H1 8 characters x 2 lines lcd panel db7 db0 rs e r/w dd v v o ss v or eqv. splc780d1 lcd controller 40 seg 16 com approx. 12 0.55 x 0.55 2.95 x 4.75 30.4 x 13.9 40.0 x 35.4 x 8.0 enable signal e >l _ h,h read data when e is high write data at falling edge of e absolute maximum ratings supply voltage(lcd) storage temp. operating temp. input voltage supply voltage(logic) item o ss symbol t stg i v t opr - v v - v dd -20 -30 -0.3 -0.3 -0.3 min. 70 80 c 10.0 + 0.3 dd v 7.0 max. v c v unit v v dd item lcd driving voltage supply current output high voltage output low voltage input low voltage input high voltage 2.5 -- ih v ol v dd - v v dd i o oh il v v = 0.1ma = - 0.1ma i ol ta=25 = 5.0v v dd c oh i 0 -- 2.4 - 0.3 symbol condition test min. v dd v -- 0.4 1.8 4.4 2.2 -- v dd 0.6 v ma v v v max. typ. unit -- -- -- -- -- =5v 0.25v ) electrical characteristics ( v dd free datasheet http:///
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