LCD12864-ST (3.3V Blue Backlight)

This is a GLCD module based on ST7920 / ST7921.
PIN NO. SYMBOL DESCRIPTION FUNCTION
1 VSS Ground 0V (GND)
2 VDD Power Supply For Logic Circuit +3.3V
3 V0 LCD Contrast Adjustment
4 RS or CS Parallel Mode:
Instruction/Data Register Selection
Serial Mode:
Chip Select Parallel Mode:
RS = 0 : Instruction Register
RS = 1 : Data Register
Serial Mode:
Active-high
5 R/W or SID Parallel Mode:
Read/Write Selection
Serial Mode:
Data Parallel Mode:
R/W = 0 : Register Write
R/W = 1 : Register Read
6 E or SCK Parallel Mode:
Enable Signal
Serial Mode:
Clock Parallel Mode:
Active-high
7 DB0 Parallel Mode:
Data Bus
Serial Mode:
NC Parallel Mode:
DB0-DB7
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 PSB Serial/Parallel Selection PSB=0 : Serial Mode
PSB=1 : 8/4Bit Parallel Bus Mode
16 NC
17 RST Reset Signal Active-low
RSTB=0,Display Off, Display From Line 0
18 Vout Dual Voltage Output Available when VDD＝+3.3V
19 A Supply Voltage For LED+ +3.3V
20 K Supply Voltage For LED- 0V
Click here to know more about this product.