Displays
AND3222MST-LEDW
Optical Characteristics
Item
Symbol
Condition
Min.
Typ.
20
Max.
Unit
φ f (12 o’clock)
–
–
–
–
–
–
–
–
φ b (6 o’clock)
40
Viewing angle range
When Cr ≥ 1.4
degree
φ l (9 o’clock)
30
φ r (3 o’clock)
30
Rise time
Fall time
Tr
Tf
175
170
64
ms
ms
Hz
V
-V =24.3V
O
Ta=25ºC
DD
Frame frequency
Contrast
Frm
Cr
L
–
–
–
–
–
4.5
20
2
Brightness of Backlight
10
cd/m
IF = 180 mA
Peak Emission
Wavelength
λ P
567
570
576
nm
Environmental Absolute Maximum Ratings
Normal Temperature
Operating Storage
Min.
-20 ºC
Wide Temperature
Item
Operating
Storage
Min.
0 ºC
Max.
Max.
Min.
-20 ºC
Max.
Min.
Max.
Ambient Temperature
+50 ºC
+70 ºC
+70 ºC
-30 ºC
+80 ºC
Humidity (without
condensation)
See Note 2, 4
See note 3, 5
See Note 4, 5
See 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: absolutely 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%.
Interface Pin Assignment
Pin No.
Pin Out
VSS
VDD
VO
Level
0V
5V
–
Description
Power Supply Ground
Logic Supply Voltage
Contrast Adjustment Voltage
Read Signal
Pin No. Pin Out
Level
H/L
H/L
H/L
H/L
L
Description
Data Bus Line
Data Bus Line
Data Bus Line
Data Bus Line
Chip Signal
1
2
11
12
13
14
15
16
17
18
19
20
DB4
DB5
DB6
DB7
/CS
3
4
/RD
L
5
/WR
AO
L
Write Signal
6
H/L
H/L
H/L
H/L
H/L
Data Type Select
Data Bus Line
/RST
L
Reset Signal
V
7
DB0
DB1
DB2
DB3
–
Power Supply Voltage for LCD
For GND
LCD
8
Data Bus Line
FG
A
–
9
Data Bus Line
4.2V
GND
LED Power External (Red)
LED Ground External (White)
10
Data Bus Line
K
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com
www.purdyelectronics.com
5/1/08
3
PURDY [ PURDY ELECTRONICS CORPORATION ]
