Product User’s Manual –
Table below shows pins connection for 2x16 LCD pads.
Pin
Name
Pin Function
Connection
1
GND
Ground
GND
2
VDD
Positive supply for LCD
5V
3
Con
Brightness adjust
Connected to a preset to
adjust brightness
4
RB4
Select register,select instruction or
data register
Pin RS of LCD
5
GND
Ground
GND
6
RB5
Start data read or write
Pin E of LCD
7
RD0
LCD data bus pin
Pin D0 of LCD
8
RD1
LCD data bus pin
Pin D1 of LCD
9
RD2
LCD data bus pin
Pin D2 of LCD
10
RD3
LCD data bus pin
Pin D3 of LCD
11
RD4
LCD data bus pin
Pin D4 of LCD
12
RD5
LCD data bus pin
Pin D5 of LCD
13
RD6
LCD data bus pin
Pin D6 of LCD
14
RD7
LCD data bus pin
Pin D7 of LCD
15
VDD
Backlight positive input
VDD
16
B/L
Backlight negative input
Connect to JP8
Table below shows pin connection for Turn pin of crystal oscillator
Pin
Name
Pin Function
Connection
RA6
OSC2
Crystal oscillator
Turn pin (JP7)
RA7
OSC1
Crystal oscillator
Turn pin(JP7)
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