www.vishay.com 57 LCD-020M004D vishay document number: 37269 revision 01-oct-02 20 x 4 character lcd features 5 x 8 dots includes cursor built - in controller (ks 0066 or equivalent) + 5v power supply (also available for + 3v) 1/16 duty cycle led can be driven by pin 1, pin 2, pin 15, pin 16 or a and k n.v. optional for + 3v power supply mechanical data item standard value unit module dimension 77.0 x 47.0 mm viewing area 60.0 x 22.0 mm mounting hole 70.0 x 40.0 mm character size 2.30 x 4.03 mm absolute maximum rating item symbol standard value unit min. typ. max. power supply vdd-vss - 0.3 7.0 v input voltage vi - 0.3 vdd v note: vss = 0 volt, vdd = 5.0 volt display position dd ram address dd ram address dd ram address dd ram address display character address code: 1 2 3 456 7 8 910111213 20 00 01 13 40 41 53 14 15 27 54 55 67 electrical specifications item symbol condition standard value unit min. typ. max. input voltage vdd vdd = + 5v 4.7 5.0 5.3 v vdd = + 3v 2.7 3.0 5.3 v supply current idd vdd = + 5v 8.0 10.0 ma - 20 c 5.0 5.1 5.7 recommended lc driving vdd - v0 0 c 4.6 4.8 5.2 v voltage for normal temp. 25 c 4.1 4.5 4.7 version module 50 c 3.9 4.2 4.5 70 c 3.7 3.9 4.3 led forward voltage vf 25 c 4.2 4.6 v led forward current if 25 c 540 1080 ma el power supply current iel vel = 110vac; 400hz 5.0 ma
document number: 37269 revision 01-oct-02 www.vishay.com 58 LCD-020M004D vishay pin number symbol function 1 vss gnd 2 vdd + 3v or + 5v 3 vo contrast adjustment 4 rs h/l register select signal 5 r/w h/l read/write signal 6eh l enable signal 7 db0 h/l data bus line 8 db1 h/l data bus line 9 db2 h/l data bus line 10 db3 h/l data bus line 11 db4 h/l data bus line 12 db5 h/l data bus line 13 db6 h/l data bus line 14 db7 h/l data bus line 15 a power supply for led 4.2v 16 k power supply for b/l (0v) 20 x 4 character lcd dimensions in millimeters + 98.0 0.5 0.6 96.8 10.5 77.0(va) 13.8 70.4(aa) 10.0 p2.54*15=38.06 2.0 only for wh2004b 1 16 16- 1.0 pth 60.0 0.5 39.3 10.35 25.2(va) 17.4 20.8(aa) 19.6 2.5 124 0.5 49.0 93.0 46.4 conducter side 1 16 17.0 p1.0*15=15.0 only for wh2004b 2.5 2.5 55.0 4- 2.5 pth 4- 5.0 pad led b/l el or no b/l 1.6 1.6 13.6 max 9.3 max 9.0 4.7 0.6 0.6 0.6 0.6 2.95 0.55 0.55 4.75 dot size
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