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LAMPEX
LM20400 [20 x 4, 1/16 MUX]
10.0
1
ALPHANUMERIC DOT MATRIX LCM
DIMENSION IN MM
9.5(13.5)* 5.0(9.0)*
2.54
98.00.5 [3.860.020] 2.5
16
60.00.5 [2.360.020]
A
K
70.4 76.00.2 93.00.3 97.00.5
26.00.2 39.00.5 4xO2.5
55.00.3
2.6
1.6
BLOCK DIAGRAM
CONTROLLER CHIP Vss Vdd V0 RS R/W E DB0 To DB7 A K
8
0.60 0.55
4
40
DRIVER
40
16
40 4
LCD
40 4
5.35 4.75 0.60 0.55 2.95 3.55
DRIVER
DRIVER
R
BACKLIGHTING
[ * ] DIMENSIONS FOR LED BACKLIGHT VERSION
TABULATED DATA
MODEL DISPLAY FORMAT CHAR. x LINE FONT MATRIX WxH DRIVING DUTY DOT SIZE WxH CHARACTER SIZE WxH VIEWING AREA WxH PCB SIZE WxH
LM20400
20 x 4
5x8
1/16
0.55 x 0.55
2.95 x 4.75
76.0 x 26.0
98.0 x 60.0
ELECTRICAL DATA (Ta = 25C, Vdd = +5V + 0.25V) ITEM Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Supply Current Operating Voltage for LCD LED Backlight Current PIN DETAILS PIN No. 1 2 3 4 DESCRIPTION Gnd Vcc Vo RS PIN No. 5 6 7 to 14 15 & 16 DESCRIPTION R/W E DB0 to DB7 LED BL A & K SYMBOL ViH ViL VoH VoL Idd Vdd-Vo ILED TEST CONDITION IoH = 0.2mA IoL = 1.2mA Vdd = 5.0V Ta = 0C Ta = 25C Vdd = 5.0V STANDARD VALUES
MIN. TYP. MAX.
UNITS V V V V mA V V mA
2.2 -0.3 2.4 90 MAX. RATING Item MAX.
1.2 4.7 4.5 120
Vdd 0.6 0.4 2.0 140
OPTIONAL DETAILS
Wide configurations available. Kindly contact LAMPEX while ordering. Refer LAMPEX LCM Catalog for more Information. L A M P E X reserves all rights. Specification might alter without prior notice. CAUTION: STATIC SENSITIVE DEVICES
Top -15 to +65C Tst -20 to +70C Vdd +5 Volts RH% 90 %

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