Pin Description and Wiring Diagram
Pin No. Symbol
External
Function Description
Connection
Power Supply
Power Supply
1
2
3
4
5
VSS
VDD
V0
RS
R/W
Ground
Supply Voltage for logic (+5.0V)
Adj Power Supply Power supply for contrast (approx. 0.6V)
MPU
MPU
MPU
MPU
MPU
Register select signal. RS=0: Command, RS=1: Data
Read/Write select signal, R/W=1: Read R/W: =0: Write
Operation enable signal. Falling edge triggered.
Four high order bi‐directional three‐state data bus lines.
Four low order bi‐directional three‐state data bus lines. These four
are not used during 4‐bit operation.
6
E
7‐10
11‐14
DB4 – DB7
DB0 – DB3
15
A
K
NC
LED+
LED‐
‐
No connect
Power Supply for LED Backlight (4.2V)
Ground for Backlight
Power Supply
Power Supply
Recommended LCD connector: 2.54mm pitch pins
Backlight connector: ‐‐‐ Mates with: ‐‐‐
[4]
NEWHAVEN [ NEWHAVEN DISPLAY INTERNATIONAL, INC. ]
