
Intelligent Character Display
AND1264WGST-LED
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
7/20/07
Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com
4
Optical Characteristics
Item Symbol Condition Min. Typ. Max. Unit
Viewing Angle Range
φ
f (12 o’clock)
When Cr
≥
1.4
–20 –
Degree
φ
b (6 o’clock)
–40 –
φ
l (9 o’clock)
–30 –
φ
r (3 o’clock)
–30 –
Rise TIme
Tr
V
DD
-V
O
=8.3V
Ta = 25ºC
– 200 –
ms
Fall Time
Tf
– 250 –
Frame Frequency Frm – 64 – Hz
Contrast
Cr
– 4.5 –
The Brightness of Backlight
L
If = 300 mA
140 180 –
cd/m
2
Peak Emission Wavelength
λ
P
567 570 577 nm
Absolute Maximum Ratings
- Electrical Absolute Ratings
Item Symbol Min. Max. Unit
Power Supply for Logic
V
DD
-V
SS
-0.3 7.0 V
Power Supply for LCD
V
DD
-V
EE
0 14.0 V
Input Voltage
V
I
-0.3
V
DD
V
LED Power Dissipation
P
AD
– 2070 mW
LED Forward Current
I
AF
– 450 mA
LED Reverse Voltage
V
R
–8 V
Absolute Maximum Ratings
- Environmental Absolute Maximum Ratings
Item
Normal Temperature Wide Temperature
Operating Storage Operating Storage
Min. Max. Min. Max. Min. Max. Min. Max.
Ambient Temperature
0ºC
+50ºC
-20ºC +70ºC -20ºC +70ºC -30ºC +80ºC
Humidity (without condensation)
Note 2, 4
Note 3, 5 Note 4, 5 Note 4, 6
Note 2
Ta
≤
50ºC: 80% RH max
Ta > 50ºC: Absolute humidity must be lower than the humidity of 85% RH at 50ºC.
Note 3
Ta at -20ºC will be < 48 hrs; at 70ºC will be < 120 hrs when humidity is higher than 75%.
Note 4
Background color changes slightly depending on ambient temperature. This phenomenon is reversible.
Note 5
Ta
≤
70ºC: 75 RH max
Ta > 70ºC: absolute humidity must be lower than the humidity of 75% RH at 70ºC
Note 6
Ta at -30ºC will be < 48 hrs; at 80ºC will be <120 hrs when humidity is higher than 75%
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