Purdy AND3222MST-LEDW - Manual (Page 3)

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
5/1/08 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] 3
www.purdyelectronics.com
Displays
Environmental Absolute Maximum Ratings
Item
Normal Temperature Wide Temperature
Operating Storage Operating Storage
Min. Max. Min. Max. Min. Max. Min. Max.
Ambient Temperature 0 ºC +50 ºC -20 ºC +70 ºC -20 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%.
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
=24.3V
Ta=25ºC
175 ms
Fall time Tf 170 ms
Frame frequency Frm – 64 – Hz
Contrast Cr – 4.5 –
Brightness of Backlight L
IF = 180 mA
10 20 – cd/m 2
Peak Emission
Wavelength
λ P 567 570 576 nm
Interface Pin Assignment
Pin No. Pin Out Level Description Pin No. Pin Out Level Description
1 VSS 0V Power Supply Ground 11 DB4 H/L Data Bus Line
2 VDD 5V Logic Supply Voltage 12 DB5 H/L Data Bus Line
3 VO – Contrast Adjustment Voltage 13 DB6 H/L Data Bus Line
4 /RD L Read Signal 14 DB7 H/L Data Bus Line
5 /WR L Write Signal 15 /CS L Chip Signal
6 AO H/L Data Type Select 16 /RST L Reset Signal
7 DB0 H/L Data Bus Line 17 V
LCD
– Power Supply Voltage for LCD
8 DB1 H/L Data Bus Line 18 FG – For GND
9 DB2 H/L Data Bus Line 19 A 4.2V LED Power External (Red)
10 DB3 H/L Data Bus Line 20 K GND LED Ground External (White)
AND3222MST-LEDW