Purdy AND3222MST User Manual

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 AND3222MST­LEDW 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.

Electrical Characteristics (Ta = 25°C)

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

Outline
Dimensions

148.0 (W) x 120.2 (H) x 20.5 max (D) mm

Number of
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 –

Specification Unit

320 (W) x 240 (H) pixels

Absolute Maximum Ratings - Electrical

Item

Power Supply for Logic

Power Supply for LCD Driver

Input Voltage

LED Power Dissipation

LED Forward Current

LED Reverse Voltage

Symbol Min. Max. Unit

- V

V

DD

V

- V

DD

V

P

AD

I

AF

V

SS

LCD

I

R

-0.3 7.0 V

0 30.0 V

-0.3 V

DD

– 1242

– 270

8V

mW

mA

Item

Power

Supply for

Logic

Power
Supply for
LCD Drive

Input

Voltage

Logic

Supply

Current

LED

Forward

Voltage

LED

Forward

Current

LED

Reverse

Current

V

Symbol Condition Min. Typ. Max. Unit

V

V

V

LCD -

V

DD -

V

V

DD -

SS

V

SS

IL

IH

V

O

– 4.5 5.0 5.5 V

– -21.6 -22.1 -22.7 V

L Level 0 – 0.6 V

H Level 2.2 –

Ta = 0ºC

Ta = 25ºC

–

–

V

DD

22.7

–

24.3 – V

Ta = 50ºC – 25.8 – V

I

I

V

=5.0V

DD

V

DD -

24.3V

If = 180 mA – 4.2 4.6 V

– – 180 – mA

VR = 8V – – 0.3 mA

V

DD

EE

I

I

F

F

R

V

=

O

34.9 31.3 –

– 3.6 –

V

V

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.

5/1/08

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: [phone] • Fax: [phone] • [e-mail]

www.purdyelectronics.com

1

Displays

Dimensional Outline

AND3222MST-LEDW

Unit: mm
Standard Tolerance: 0.5mm

2

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: [phone] • Fax: [phone] • [e-mail]

www.purdyelectronics.com

5/1/08

φ

φ

φ

φ

λ

Displays

AND3222MST-LEDW

Optical Characteristics

Item Symbol Condition Min. Typ. Max. Unit

f (12 o’clock)

Viewing angle range

Rise time Tr

Fall time Tf 170 ms

Frame frequency Frm – 64 – Hz

Contrast Cr – 4.5 –

Brightness of Backlight L

Peak Emission

Wavelength

b (6 o’clock)

l (9 o’clock)

r (3 o’clock)

P 567 570 576 nm

When Cr ≥ 1.4

V

-V

=24.3V

DD

O

Ta=25ºC

IF = 180 mA

Environmental Absolute Maximum Ratings

Normal Temperature Wide Temperature

Item

Ambient Temperature 0 ºC +50 ºC -20 ºC +70 ºC -20 ºC +70 ºC -30 ºC +80 ºC

Humidity (without
condensation)

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%.

Operating Storage Operating Storage

Min. Max. Min. Max. Min. Max. Min. Max.

See Note 2, 4 See note 3, 5 See Note 4, 5 See Note 4.6

–20–

–40–

–30–

–30–

175 ms

10 20 –

degree

cd/m

2

Interface Pin Assignment

Pin No.

10 DB3 H/L Data Bus Line 20 K GND LED Ground External (White)

5/1/08

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

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)

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: [phone] • Fax: [phone] • [e-mail]

V

LCD

– Power Supply Voltage for LCD

www.purdyelectronics.com

3

Displays

Power Supply

AND3222MST-LEDW

Block Diagram

4

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: [phone] • Fax: [phone] • [e-mail]

www.purdyelectronics.com

5/1/08

Displays

Timing Characteristics

Item

System Cycle Time tCYC 425 – – ns

Address Set-up Time tAW 30 – – ns

Address Hold Time tAH 10 – – ns

Data Set-up Time tDS 120 – – ns

Data Hold Time tDH 10 – – ns

Output Disable Time tOH 10 – 50 ns

Access Time tACC – – 120 ns

Enable Pulse Width

AND3222MST-LEDW

Symbol Min. Typ. Max. Unit

Read

Write 220 – – ns

tEW

220 – – ns

5/1/08

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: [phone] • Fax: [phone] • [e-mail]

www.purdyelectronics.com

5