Displays
Connector Pin Assignment
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Signal
V
SS
V
DD
V
O
RS
R/W
E
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
A
K
0V
5V
Contrast Adj.
Register Select
Read/Write
Enable Signal
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
LED Power
LED Power
Function
AND591GST/GST-LED
Intelligent Character Display
Power Supply
LCD panel is driven by the voltage V
DD
–V
O
, so an adjustable
V
O
is required for contrast control and temperature
compensation.
Temperature Variations
Temperature
0°C
+25°C
+50°C
Power Supply Block Diagram
V
DD
–V
O
5.00
4.75
4.50
Block Diagram
Dimensional Outline
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
T l 408 523 8200 F
408 733 1287
l @
d l t
i
ANDdi l
2
PURDY [ PURDY ELECTRONICS CORPORATION ]
