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

1

Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com

7-27-99

Intelligent Character Display

AND721GST/GST-LED

AND721GST/GST-LED

4 Lines x 20 Characters

Intelligent Character Display

The AND721GST/GST-LED devices are compact,

LCD modules that have an on-board LCD controller and

driver circuit. These devices can display 160 characters

(numerals, letters, symbols and Kana letters), as well as eight

custom characters.

Features

•

AND721GST: Super Twist Technology

•

AND721GST-LED: STN with LED backlight

•

Low voltage, +5V single power supply

•

Controller on board (HD44780)

•

RoHS compliant

•

11 commands for control

•

Wide temperature range option (WGST)

Dot Matrix Dimensions

Mechanical Characteristics

Item

Specification

Unit

Outline

Dimensions

98 (W) x 60 (H) x 12 (D)

mm

Character Size

2.95 (W) x 4.75 (H)

mm

Viewing Area

76.0 (W) x 25.2 (H)

mm

Dot Size

0.55 (W) x 0.55 (H)

mm

Dot Pitch

0.60 (W) x 0.60 (H)

mm

Absolute Maximum Ratings

Item

Symbol

Rating

Unit

Supply Voltage

7.0

V

Input Voltage

0

≤ V

V

LED Forward Current

480

mA

0.55

0.60

0.60

2.95

LED Reverse Voltage

8V

LED Power Dissipation

1900

mW

Operating Tempera-

ture

0 to +50

°C

Storage Temperature

-20 to +60

°C

Electrical Characteristics (TA = 25°C)

Item

Symbo

l

Min.

Typ.

Max.

Unit

Supply Voltage

4.75

5.0

5.25

V

3.0

–

6.3

High Level In Voltage

––

V

Low Level In Voltage

0

–

0.6

V

High Level Output Volt.

2.4

–

–

V

Low Level Output Volt.

–

–

0.4

V

LED Forward Voltage

3.8

4.1

4.4

V

LED Reverse Current

–

–

2.4

mA

Optical Characteristics (TA 5 = 25˚C,

φ = 0°, θ = 0°)

Item

Symbol

Min.

Typ.

Max.

Unit

Viewing Angle

f

–

50

–

degree

Contrast

K

–

6.0

–

–

Turn On

–

200

400

ms

Turn Off

–

250

400

ms

Absolute Maximum Ratings (Continued)

Item

Symbol

Rating

Unit

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.

• RoHS Compliant