PIN NO.
SYMBOL
LEVEL
FUNCTION
1
VSS
-
0V
2
VDD
5V
Power supply
3
VL
4
RS
H/L
H: Data input
L: Instruction data input
5
R/W
H: Data read
L: Data write
6
E
H,H→L
Enable signal
7
D0
Data bus
8
D1
9
D2
10
D3
11
D4
12
D5
13
D6
14
D7
15
A
Anode for LED back light
16
K
Cathode for LED back light