Pin no.
Symbol
Function
1
VB0+
LCD Bias Voltages. These are the voltage sources to provide SEG driving currents.
2
VB1+
3
VB1-
4
VB0-
5
VLCD
LCD driving voltage.
6
VDD
Power supply pin. (+3.3V)
7
VSS
Ground (0V)
8
CD
Display/control data select “H”:display data; “L”:control data
9
CS
Chip Select input pin, Low Active
10
RST
External Reset input pin
11
SCK
Clock signal input.
12
SDA
Data signal input.
13
SDO
Data signal output.
14
TST4
15
BL_K
Cathode of LED Backlight
16
BL_A
Anode of LED Backlight (+5V)