Purdy AND471GST User Manual
And471gst/gst-led, Features
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
1
Tel: 408.523.8200 • Fax: 408.733.1287 •
• www.purdyelectronics.com
7/20/07
AND471GST/GST-LED
2 Lines x 16 Characters
Intelligent Character Display
The AND471GST/GST-LED devices are compact, LCD
modules that have an on-board LCD controller and driver
circuit. These devices can display 160 characters (numerals,
letters, symbols and Kana letters), as well as eight custom
characters. The large characters provide excellen readability.
Features
• AND471GST: Super Twist Technology
• AND471GST-LED: STN with LED backlight
• Low voltage, +5V single power supply
• Controller on board (HD44780)
• RoHS compliant
• Wide temperature range option (WGST)
Dot Matrix Dimensions
Mechanical Characteristics
Item
Specification
Unit
Outline
Dimensions
122 (W) x 44 (H) x 11 (D)
mm
Character size
4.84 (W) x 9.66 (H)
mm
Viewing Area
99.0 (W) x 24.0 (H)
mm
Dot Size
0.92 (W) x 1.10 (H)
mm
Dot Pitch
0.98 (W) x 1.16 (H)
mm
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply Voltage
V
DD
7.0
V
Input Voltage
V
IN
0
≤
V
IN
≤
V
DD
V
LED Forward Current
I
F
480
mA
4.84
0.50
0.05
0.92
0.05
1.10
9.66
0.40
LED Reverse Voltage
V
R
8
V
LED Power Dissipation
P
D
2000
mW
Operating Temperature
T
op
0 to +50
°C
Storage Temperature
T
stg
–20 to +60
˚C
Electrical Characteristics (TA = 25°C)
Item
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
V
DD
4.75
5.0
5.25
V
V
DD
-V
O
3.0
–
6.3
High Level In Voltage
(V
DD
= 5.0V)
V
IH
2.2
–
–
V
Low Level In Voltage
(I
OH
= 0.2 mA)
V
IL
–
–
0.6
V
High Level Output Volt.
(–I
OH
= 0.2 mA)
V
OH
2.4
–
–
V
Low Level Output Volt.
(I
OL
= 1.2 mA)
V
OL
–
–
0.4
V
LED Forward Voltage
(I
F
= 220)
V
F
3.8
4.1
4.4
V
LED Reverse Current
(V
R
= 8 V)
I
R
–
–
2.4
mA
Optical Characteristics (TA 5 = 25˚C,
φ
= 0°,
θ
= 0°)
Item
Symbol
Min.
Typ.
Max.
Unit
Viewing Angle
φ
–
50
–
degree
Contrast
K
–
6.0
–
–
Turn On
T
on
–
200
400
ms
Turn Off
T
off
–
250
400
ms
Absolute Maximum Ratings (Continued)
Item
Symbol
Rating
Unit
Product specifications contained herein may be changed without prior notice.
It is therefore advisable to contact Purdy Electronics before proceeding with the design of equipment incorporating this product.
• RoHS Compliant