Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
5/1/08
1
www.purdyelectronics.com
Displays
AND3222MST-LEDW
6” FSTN LCD Module
The AND3222MST-LEDW display is a compact, full dot matrix,
which is an STN gray positive LCD type, transflective rear
polarizer with a yellow green backlight color. The AND3222MST-
LEDW can display TEXT information, numerals, letters and
symbols, as well as GRAPHIC patterns. These devices are
suitable for medical and measurement equipment, point-of-sale
terminals, protable equipment, and marine instrumentation.
Features
• STN Gray Positive LCD type
• Built-in LED yellow green backlight
• Excellent readability and high-contrast ratio
• 320 (W) x 240 (H) dot graphic display
• Wide operating temperature range (-20 to +70 ºC)
• Transflective rear polarizer
• 6 o’clock viewing angle
•
RoHS Compliant
Mechanical Characteristics
Item
Specification Unit
Outline
Dimensions
148.0 (W) x 120.2 (H) x 20.5 max (D) mm
Number of
Pixels
320 (W) x 240 (H) pixels
Active Area 120.14 (W) x 92.14 (H) mm
Pixel Size 0.33 (W) x 0.33 (H) mm
Pixel Pitch 0.36 (W) x 0.36 (H) mm
Duty Ratio 1/240 duty
Controller SID13305 –
DC/DC Converter With –
Absolute Maximum Ratings - Electrical
Item
Symbol Min. Max. Unit
Power Supply for Logic
V
DD
- V
SS
-0.3 7.0 V
Power Supply for LCD Driver
V
DD
- V
LCD
0 30.0 V
Input Voltage
V
I
-0.3 V
DD
V
LED Power Dissipation
P
AD
– 1242
mW
LED Forward Current
I
AF
– 270
mA
LED Reverse Voltage
V
R
8V
Electrical Characteristics (Ta = 25°C)
Item
Symbol Condition Min. Typ. Max. Unit
Power
Supply for
Logic
V
DD -
V
SS
– 4.5 5.0 5.5 V
Power
Supply for
LCD Drive
V
LCD -
V
SS
– -21.6 -22.1 -22.7 V
Input
Voltage
V
IL
L Level 0 – 0.6 V
V
IH
H Level 2.2 –
V
DD
V
V
DD -
V
O
Ta = 0ºC
–
22.7
–
V
Ta = 25ºC
–
24.3 – V
Ta = 50ºC – 25.8 – V
Logic
Supply
Current
I
DD
V
DD
=5.0V
V
DD -
V
O
=
24.3V
34.9 31.3 –
mA
I
EE
– 3.6 –
LED
Forward
Voltage
V
F
If = 180 mA – 4.2 4.6 V
LED
Forward
Current
I
F
– – 180 – mA
LED
Reverse
Current
I
R
VR = 8V – – 0.3 mA
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.
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