www.vishay.com 55 LCD-020M004B vishay document number: 37268 revision 01-oct-02 for technical questions, contact: displays@v ishay .com 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 ffc and ffc connector is for LCD-020M004B only mechanical data item standard value unit module dimension 98.0 x 60.0 mm viewing area 77.0 x 25.2 mm mounting hole 93.0 x 55.0 mm character size 2.95 x 4.75 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 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 1.0 1.2 ma - 20 c 5.0 5.1 5.7 recommended lc driving vdd - v0 0 c 4.6 4.8 5.2 voltage for normal temp. 25 c 4.1 4.5 4.7 v 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 280 560 ma el power supply current iel vel = 110vac; 400hz 5.0 ma 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
document number: 37268 revision 01-oct-02 www.vishay.com 56 LCD-020M004B vishay for technical questions, contact: displays@v ishay .com 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/vee + 4.2v for led (ra = 0)/negative voltage output 16 k power supply for b/l (0v) 20 x 4 character lcd dimensions in millimeters + 3.5 18 1.5 33.8 23.0(va) 18.97(aa) 7.0 a k 20.5 3.6 8- 1.0 2.5 p2.54*15=38.1 1.8 18 1 73.0 146.0 0.5 139.0 16- 1.0 pth 16- 1.8 pad 118.84(aa) 123.0(va) 134.0 4- 3.5 16.0 36.0 43.0 0.5 2.5 k a 5.08 12.5 1.5 3.5 + 1.6 module height led el h1 13.7 9.7 h2 9.1 5.1 h1 max h2 dot size scale 5/1 6.0 4.84 0.98 0.92 9.75 9.22 1.16 1.1
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