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

1

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

7/23/07

AND771GST/GST-LED

2 Lines x 24 Characters

Intelligent Character Display

The AND771GST/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

• AND771GST: Super Twist Technology

• AND771GST-LED: STN with LED backlight

• Low voltage, +5V single power supply

• Controller on board (HD44780)

• Direct interface to 4- or 8-bit CPU

• 11 commands for control

• Wide temperature range option (WGST)

Dot Matrix Dimensions

Mechanical Characteristics

Item

Specification

Unit

Outline

Dimensions

118 (W) x 36 (H) x 11 (D)

mm

Character Size

3.20 (W) x 5.55 (H)

mm

Viewing Area

93.5 (W) x 15.8 (H)

mm

Bezel Opening

93.5 (W) x 15.8 (H)

mm

Dot Size

0.60 (W) x 0.60 (H)

mm

Dot Pitch

0.65 (W) x 0.65 (H)

mm

Absolute Maximum Ratings

Item

Symbol

Rating

Unit

Supply Voltage

7.0

V

Input Voltage

0

≤ V

V

3.20

0.50

0.05

0.60

LED Forward Current

280

mA

LED Reverse Voltage

4V

LED Power Dissipation

1150

mW

Operating Temperature

0 to +50

°C

Storage Temperature

–20 to +60

°C

Electrical Characteristics (TA = 25°C)

Item

Symbol

Min.

Typ.

Max.

Unit

Supply Voltage

4.75

5.0

5.25

V

3.0

–

6.3

High Level In Voltage

2.2

–

–

V

Low Level In Voltage

0

–

0.6

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

–

–

100

µA

Optical Characteristics (TA = 25˚C,

φ= 0°, θ = 0°)

Item

Symbol

Min.

Typ.

Max.

Unit

Viewing Angle

φ

–

50

–

degree

Contrast

K

–

6.0

–

–

Turn On

–

200

400

ms

Turn Off

–

250

400

ms

Absolute Maximum Ratings (Cont)

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.