7.Interface Description
JM (left) short , for 8080 MPU family
Pin No. Symbol
Level
Description
1
2
3
4
VSS
VDD
VO
0V
Ground
5.0V
Power supply for Logic
(Variable) Driving voltage for LCD
/RD
H/L
Active Low=Read data
/WR signal input to select the write mode
Active Low = Write data
5
6
/WR
H/L
R/W=L, A0=H: Command Write
R/W=H, A0=H: Status Read
A0=L: Data Write
A0=L: Data Read
A0
H/L
7~14 DB0~DB7
H/L
H/L
Data bus
15
16
17
18
19
20
CS
RES
VEE
FGND
A
Chip select ,Active L
Controller reset signal, Active L
Negative voltage output (Optional)
Frame Ground
H/L
-25V
5.0V
0V
Backlight supply
K
Backlight ground
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