Pin No.
Symbol
Description
1
GND
Ground for the logic
2
LEDA
Anode of LED backlight.
3
LEDK1
Cathode of LED backlight.
4
LEDK2
5
LEDK3
6
LEDK4
7
8
/RESET
Reset pin. Setting either pin low initializes the LSI.
9
D/C
Register Select Signal (H: Data, L: Instruction)
10
SDA
Serial data input.
11
SCLK
Serial clock input.
12
VCC
Power supply (VCC = 2.5 ~ 3.3V)
13
IOVCC
IO logic level (IOVCC = 1.8 ~ 3.3V)
14
CS
Chip select signal. 0: chip can be accessed; 1: chip cannot be accessed.
15
16
NC
No connection
17
18
19
20