BC2004D feature mechanical data item module dimension viewing area dot size character size standard value unit mm mm mm mm 77.0 x 47.0 60.0 x 22.0 0.42 x 0.46 2.3 x 4.03 dimension bo lymin 1. cob with metal frame 2. 5x7 dots with cursor 3. built-in controller ks0066 or equivalent 4. + 5v single power supply 5. 1/16 duty cycle 6. led b/l pins:15/16, or a/k, or 1/2 7. option: led array/edge b/l, el b/l 8. option: +3v single power supply input voltage supply current lcd driving voltage led forward voltage led forward current vdd idd vdd-vo vf if vdd = +5v vdd = +5v 25 c 5.0 1.6 4.5 4.2 180 v ma v v ma typical value electronic characteristics o 25 c o 25 c o item symbol condition unit el power voltage vel vel=110vac/400hz v pin assignment pin symbol function 1 2 3 4 5 6 7~14 15 16 gnd +5v contrast adjustment h/l register select signal h/l read/write signal h --> l enable signal h/l data bus line power supply for b/l (+)/ negative voltage output power supply for b/l (gnd) vss vdd vo rs r/w e db0~7 a/vee k 1 . 6 0 . 4 2 2 . 3 0 . 4 8 0 . 4 6 7 7 . 0 0 . 5 1 7 . 5 6 2 2 . 0 3 2 . 6 ( a a a a ) 7 0 . 0 3 . 5 p 2 5 4 * 1 5 = 3 8 1 1 0 . 0 2 . 5 5 5 . 1 ( a a a ) 6 0 . 0 ( v a ) 3 8 . 5 1 6 . 0 4 7 . 0 0 . 5 3 . 5 3 . 5 5 2 3 . 5 0 4 - ? 4 . 0 l e d b / l : 1 1 . 9 e l o r n o b / l : 9 . 1 l e d b / l : 7 . 8 e l o r n o b / l : 5 . 0
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