Pin no.
Symbol
Function
1
VSS
Ground
2
VCC
Supply voltage for logic circuit
3
V0
Voltage level for LCD driving
4
RS
Selects register date “H” and instruction “L”
5
R/W
Use as read/write select input
6
E
Use as read/write enable signal
7
DB0
Display data signal
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
LED-
Cathode of LED backlight
16
LED+
Anode of LED backlight