Pin Description and Wiring Diagram
Pin No. Symbol
External
Connection
Power Supply
Power Supply
Power Supply
MPU
Function Description
1
2
3
Vss
VDD
V0
Ground
Supply voltage for logic (+5.0V)
Power supply for contrast (approx. 0.4V)
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.
For low order bi‐directional three‐state data bus lines. These four
are no used during 4‐bit operation.
4
RS
5
6
R/W
E
MPU
MPU
MPU
7‐10
DB0‐DB3
11‐14
15
16
DB4‐DB7
LED+
LED‐
MPU
Power Supply
Power Supply
Four high order bi‐directional three‐state data bus lines.
Power supply for LED Backlight (+5.0V via on‐board resistor)
Ground for backlight
Recommended LCD connector: 2.54mm pitch pins
Backlight connector: ‐‐‐ Mates with: ‐‐‐
[4]
NEWHAVEN [ NEWHAVEN DISPLAY INTERNATIONAL, INC. ]
