page 12 absolute maximum ratings parameter symbol min max unit supply voltage v dd -v ss -0.3 6.5 v input voltage v dd -v 6 0 28.0 v operating temperature t op -20 70 c storage temperature t stg -30 80 c electrical characteristics (vdd=5.00.25v 25c) parameter sym condition min typ max unit operating voltage v dd - 4.75 5.0 5.25 v power for lcd v dd - v l v dd = 5v 4.5 5.7 6.5 v input high voltage v ih - .8v dd - v dd v input low voltage v il - gnd - .2v dd v power supply current i dd v dd =5.0v - - - ma power supply current i lcd v ee =-5.0v - - 5.0 ma led supply current i led - - - - ma features backlight...........................................................................led options.................................................................yellow stn extended temperature top viewing built-in controller.............................................sanyo lc7981 features physical data module size................................122.0w x 44.0h x 14.5t mm viewing area size......................................99.0w x 24.0h mm dot pitch....................................................0.74w x 0.64h mm dot size.....................................................0.70w x 0.60h mm weight................................................................................78g pin connections pin no. symbol level function 1 led a - anode for led backlight 2 led c - cathode for led backlight 3 v ss 0v ground 4 v dd 5v power supply for logic 5 n/c no connection 6 rs h/l register select 7 r/w h/l h=read/l=write 8 e h,h ? l enable signal 9 db0 h/l data bus 10 db1 h/l 11 db2 h/l 12 db3 h/l 13 db4 h/l 14 db5 h/l 15 db6 h/l 16 db7 h/l 0 . 0 4 0 . 6 dimension tolerance: +/-0.3mm dimensional drawing 128 x 32 dots graphic, led back light 0.04 0.7 power supply v dd v ss k a l c m + 5v r led 1 16 94.68 99.00.2 109.3 115.0 122.00.5 11.5 6.35 3.5 1 6 . 5 7 . 0 10.9 2.54x15=38.1 2 . 5 16- ? 1.0 2 0 . 4 4 2 4 . 0 2 7 . 0 3 6 . 4 4 4 . 0 0 . 5 4- ? 3.5 8 . 0 3 . 3 1 . 8 1.6 9 . 3 1 4 . 5 m a x hdm32gs12l-4 this is a +5v only module which has a built in inverter for the lcd voltage.
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