page 81 electrical characteristics (vdd=5.00.25v 25c) parameter sym condition min typ max unit power supply current i dd v dd =5.0v - 1.5 2.5 ma power supply for lcd v dd -v l t a =25c 4.2 4.7 5.2 v led forward vtg (white) v f i f =20ma 3.2 3.4 3.6 v (yellow) i f =110ma 3.9 4.1 4.5 brightness (white led) l i f =20ma 58 83 - cd/m 2 (yellow led) i f =110ma 30 45 - drive method 1/16 duty absolute maximum ratings parameter symbol min max unit supply voltage v dd -v ss 0 7.0 v supply voltage for lcd v dd -v l 0 13.5 v operating temperature t op 0 50 c storage temperature t stg -20 70 c led forward current (white) i f - 25 ma (yellow) - 300 led reverse voltage (white) v r - 5 v (yellow) - 8 led power consumption (white) p d - 50 mw (yellow) - 1350 physical data module size ..................................98.0w x 60.0h x 12.5t mm thick version............. 98.0w x 60.0h x 15.0t mm viewing area size......................................76.0w x 25.2h mm weight.................................................................................60g features character format .................................. 5x7 dots with cursor backlight...................................................white or yellow led options.......................................gray stn/yellow stn, fstn 12 o?clock/6 o?clock view normal/extended temperature normal/negative displays block diagram pin connections pin no. symbol level function 1 v ss - 0v power supply 2 v dd - 5v 3 v l - - 4 rs h/l h: data input l: instruction data input 5 r/w h/l h: data read l: data write 6 e h,h->l enable signal 7 d0 h/l data bus 8 d1 h/l 9 d2 h/l 10 d3 h/l 11 d4 h/l 12 d5 h/l 13 d6 h/l 14 d7 h/l 15 a - anode for led backlight 16 k - cathode for led backlight d0 - d7 e r/w rs v l v dd v ss k a lcd controller hd44780 or equivalent lcd panel com 4 16 16 driver driver driver driver 4 40 40 20 20 40 40 led backlight dimensional drawing 1 2.54x15=38.1 16 1 . 6 16- f 1.0 4- f 2.5 2.5 2.95 0.6 0.05 0.55 0.55 0.6 0.05 4.75 10.0 3 9 . 4 98.0 93.0 70.4 76.0 5 5 . 0 93.0 6 0 . 0 2 5 . 2 2 0 . 8 1 5 . 0 m a x ( - 1 ) 10.5 (-1) dimension tolerance: +/-0.3mm 20 character x 4 lines, led backlight a k hdm20416l, hdm20416l-1 1 2 . 5 m a x 9.5 resistor supplied by user
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