PURDY AND501GST

Displays
AND501GST/GST-LED
20 Characters x 2 Lines
Intelligent Alphanumeric Displays
The AND501GST/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.
Features
•
•
•
•
•
•
• RoHS Compliant
AND501GST: Super Twist Technology
AND501GST-LED: STNwith LED backlight
Low voltage, +5V single power supply
Controller on board (HD44780)
RoHS compliant
11 commands for control
Absolute Maximum Ratings (Continued)
Item
Symbol
Rating
Unit
Operating Temperature
Top
0 to +50
°C
Storage Temperature
Tstg
–20 to +60
°C
Electrical Characteristics (TA = 25°C)
Item
Symbol
Min.
Typ.
Max.
VDD
4.75
5.0
5.25
GND
–
0
–
LED Forward Voltage
(IF = 200 mA)
VF
3.8
4.1
4.4
V
LED Reverse Current
(VR = 8 V)
IR
–
–
2.2
mA
“High” Level
(VDD = 5.0 V)
VIH
2.2
–
–
“Low” Level
(IOH = 0.2 mA)
VIL
0
–
0.6
“High” Level
(-IOH = 0.2 mA)
VOH
2.4
–
–
“Low” Level
(IOL = 1.2 mA)
VOL
Dot Matrix Dimensions
0.50
3.20
Supply Voltage
5.55
0.65
0.05
0.60
0.05
0.40
Input
Voltage
Mechanical Characteristics
Item
Specification
Outline
Dimensions
Unit
116 (H) x 37 (V) x 11 (D)
mm
Character Size
3.20 (H) x 5.55 (V)
mm
Viewing Area
83.0 (H) x 18.6 (V)
mm
Dot Size
0.60 (H) x 0.65 (V)
mm
Dot Pitch
0.65 (H) x 0.70 (V)
mm
Absolute Maximum Ratings
Item
Output
Voltage
Symbol
Rating
Unit
Supply Voltage
VDD
7.0
V
Input Voltage
VIN
0 ≤ VIN ≤ VDD
V
LED Forward Current
IF
275
mA
LED Reverse Voltage
VR
8
V
LED Power Dissipation
PD
1270
mW
Unit
V
V
V
–
–
0.6
Optical Characteristics (TA = 25˚C, φ = 0°, θ = 0°)
Symbol
Min.
Typ.
Max.
Unit
Viewing Angle
Item
φ
-10
25
40
degree
Contrast
K
–
3.0
–
–
Turn On
Ton
–
200
400
ms
Turn Off
Toff
–
250
400
ms
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.
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
T l 408 23 8200 F
408 33 128
l @
d l t
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ANDdi l
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Displays
AND501GST/GST-LED
Intelligent Character Display
Connector Pin Assignment
Pin
No.
Signal
1
GND
Ground
2
VDD
+5 Power Supply
3
VD
LCD Drive Voltage
4
RS
“H” Data Input
“L” Command Input
5
R/W
Read/Write
6
E
7
DB0
8
DB1
Function
Enable Signal
Power Supply
LCD panel is driven by the voltage VDD–VO, so an adjustable
VO is required for contrast control and temperature
compensation.
Temperature Variations
Temperature
VDD–VO
0°C
4.80
+25°C
4.65
+50°C
4.35
Power Supply Block Diagram
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
LED
LED Anode
16
LED
LED Cathode
Data Bus
DB0-DB7 are for 8-bit operation
DB4-DB8 are for 4-bit operation
Block Diagram
Dimensional Outline
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
T l 408 23 8200 F
408 33 128
l @
d l t
i
ANDdi l
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