4.Absolute maximum ratings
P owe r volta ge
I nput volta ge
Operating temperature range
Storage temperature range
Item
Symbol
V
DD
-V
SS
V IN
VOP
VST
0
VS S
-20
-30
Standard
-
-
-
-
7.0
V DD
+70
+80
Unit
V
5.Block diagram
6.Interface pin description
Pin no.
1
2
3
4
5
6
7~10
11~14
15
16
Symbol
V
SS
V
DD
V
0
External
connection
Power supply
MPU
MPU
MPU
MPU
MPU
Power supply
Function
Signal ground for LCM (GND)
Power supply for logic (+5V) for LCM
Contrast adjust
Register select signal
Read/write select signal
Operation (data read/write) enable signal
Four low order bi-directional three-state data bus lines.
Used for data transfer between the MPU and the LCM.
These four are not used during 4-bit operation.
Four high order bi-directional three-state data bus lines.
Used for data transfer between the MPU
P owe r s upply for L E D ba c k light (+
5.0
V )
Power supply for LED backlight(0V)
RS
R/W
E
DB0~DB3
DB4~DB7
L E D+
LED-
NEWHAVEN [ NEWHAVEN DISPLAY INTERNATIONAL, INC. ]
