Pin no.
Symbol
Function
1
VSS
Ground (logic)
2
VDD
Power supply (Logic:+5V)
3
Vadj
Power supply for LCD driving
4
C/D
H=Code, L=Data
5
/RD
Data Read (read data when /RD=L)
6
/WR
Data Write (write data when /WR=L)
7
DB0
Display data signal
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
/CE
Chip Enable
16
/RES
Reset
17
VEE
Negative voltage output from AIC1653 DC/DC Converter
18
MD2
No. of character selection (H=32; L=40)
19
FS
Select font (H=6x8; L=8x8 dots)
20
LED+
Anode of LED backlight