AND491GST-LED AND DISPLAYS, AND491GST-LED Datasheet - Page 2
![LCD Display Panel](/photos/21/38/213816/3773458_sml.jpg)
AND491GST-LED
Manufacturer Part Number
AND491GST-LED
Description
LCD Display Panel
Manufacturer
AND DISPLAYS
Datasheet
1.AND491GST-LED.pdf
(2 pages)
Specifications of AND491GST-LED
Peak Reflow Compatible (260 C)
Yes
Leaded Process Compatible
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
7/20/07
Connector Pin Assignment
Block Diagram
Dimensional Outline
Pin No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Signal
DBO
V
R/W
DB1
DB2
DB3
DB4
DB5
DB6
DB7
V
RS
V
E
A
K
Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
SS
DD
O
0V
5V
Contrast Adj.
Register Select
Read/Write
Enable
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
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
Function
Power Supply
The LCD panel is driven by the voltage V
an adjustable V
compensation.
Temperature Variations
Power Supply Block Diagram
Temperature
Intelligent Character Display
+25°C
+50°C
0°C
GND
O
V
V
DD
for contrast control and temperature
O
V
DD
V
VR10 to 20 kΩ
– V
DD
O
– V
O
VR
= LCD Drive Voltage
AND491GST
(+5V)
DD
–V
V
DD
4.80
4.50
4.20
O
–V
, so you need
O
V
DD
2