0 ≤
≤
φ
AND491GST
2 lines x 16 Characters
Intelligent Character Display
The AND491GST 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
• AND491GST: Super Twist Technologyt
• 5 x 7 Dots with cursor
• Built-in controller (KS0066 or equivalent)
• 5 V Power supply
• RoHS compliant
• 4.2V LED Forward voltage
Dot Matrix Dimensions
Mechanical Characteristics
Item
Outline
Dimensions
80 (W) x 36 (H) x 8.8(D) (12.7 LED) mm
Specification Unit
Character size 2.96 (W) x 5.56 (H) mm
Viewing Area 65 (W) x 16(H) mm
Character Pitch 3.55 (W) x 5.94(H) mm
Dot Size 0.55 (W) x 0.66 (H) mm
Dot Pitch 0.60 (W) x 0.70 (H) mm
Absolute Maximum Ratings
Item
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol Rating Unit
V
DD
V
IN
T
op
T
stg
7.0 V
V
V
IN
DD
0 to +50 °C
–20 to +60 ˚C
Electrical Characteristics (TA = 25°C)
Item
LCD Operating Voltage
(T= 0 ºC)
LCD Operating Voltage
(T= 25 ºC)
LCD Operating Voltage
(T= 50 ºC)
Supply Voltage
Supply Current
Input Voltage High Level
Input Voltage Low Level
Output Voltage High Level
Output Voltage Low Level
Symbol Min. Typ. Max. Unit
– 4.8 –
V
DD
-V
– 4.5 –
O
– 4.2 –
V
DD
- V
I
DD
V
IH
V
V
OH
V
OL
4.7 5 5.3 V
SS
–24mA
2.2 –
IL
0 – 0.6
2.4 – –
– – 0.4
V
DD
Optical Characteristics (TA 5 = 25˚C, φ = 0°, θ = 0°)
Item
Viewing Angle
Symbol Min. Typ. Max. Unit
– 50 – degree
Contrast K – 6.0 – –
Turn On
Turn Off
T
on
T
off
– 200 400 ms
– 250 400 ms
V
V
V
V
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Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
7/20/07
V
DD
V
O
GND
V
DD
– V
O
V
DD
– VO = LCD Drive Voltage
VR10 to 20 kΩ
VR
V
DD
(+5V)
Connector Pin Assignment
Pin No.
Signal Function
1
2
V
V
3
SS
DD
V
O
0V
5V
Contrast Adj.
4 RS Register Select
5 R/W
Read/Write
6 E Enable
7 DBO Data Bit 0
8 DB1 Data Bit 1
9 DB2 Data Bit 2
10 DB3 Data Bit 3
11 DB4 Data Bit 4
12 DB5 Data Bit 5
13 DB6 Data Bit 6
14 DB7 Data Bit 7
15 A LED Power
16 K Led Power
AND491GST
Intelligent Character Display
Power Supply
The LCD panel is driven by the voltage V
an adjustable V
for contrast control and temperature
O
compensation.
Temperature Variations
Temperature
0°C 4.80
+25°C 4.50
+50°C 4.20
Power Supply Block Diagram
–V
, so you need
DD
O
V
–V
DD
O
Block Diagram
Dimensional Outline
7/20/07
Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
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