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Crystage
COB2004-02
Character 20x4
Part number list
WH2004G-
-
#
Feature
1.Bulit-in controller ST7066 or equivalent
2.+5V single power supply 3.(Option) +3V power supply 4.(Option) negative voltage for +3V power 5.(Option) SPI, I2C interface
58.0 0.5 37.2 10.4
24.8(VA) 16.6 20.8(AA) 18.6
Pin Assignment
Pin No.
1
2
3
4 5 6 7 8 9 10 11 12 13 14 15 16
Symbol
Description
VSS Ground
VDD Power supply for logic
VO Contrast Adjustment
RS Data/ Instruction select signal
R/W Read/Write select signal
E Enable signal
DB0 Data bus line
DB1 Data bus line
DB2 Data bus line
DB3 Data bus line
DB4 Data bus line
DB5 Data bus line
DB6 Data bus line
DB7 Data bus line
A Power supply for B/L +
K Power supply for B/L -
Mechanical Drawing
87.0 0.5 2.5 82.0 1.4 80.2
4.3 74.4(VA) 6.3 70.