AND771GST PURDY | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 3

Technical content

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 V DD 7.0 V Input Voltage V IN V IN V DD V 3.20 0.50 0.05 0.60 0.05 0.65 5.550.40 LED Forward Current I F 280 mA LED Reverse Voltage V R LED Power Dissipation P D 1150 mW Operating Temperature T op 0 to +50 °C Storage Temperature T stg –20 to +60 °C Electrical Characteristics (TA = 25°C) Item Symbol Min. Typ. Max. Unit Supply Voltage V DD 4.75 5.0 5.25 V V DD O 3.0 – 6.3 High Level In Voltage DD = 5.0V) V IH 2.2 – – V Low Level In Voltage OH = 0.2 mA) V IL 0 – 0.6 High Level Output Volt. (–I OH = 0.2 mA) V OH 2.4 – – V Low Level Output Volt. OL = 1.2 mA) V OL – – 0.4 V LED Forward Voltage F = 160 mA) V F 3.8 4.1 4.4 V LED Reverse Current R = 4 V) I R – – 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 T on – 200 400 ms Turn Off T 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.

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com

  • www.purdyelectronics.com 7/23/07

Intelligent Character Display AND771GST/GST-LED Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com

  • www.purdyelectronics.com 7/23/07 Power Supply LCD panel is driven by the voltage V DD O , so adjustable V O is required for contrast control and temperature compensation. Power Supply Block Diagram Block Diagram Dimensional Outline Connector Pin Assignment Pin No. Signal Function

1 GND Ground

+5 Power Supply 3 V O LCD Drive Voltage 4R S “H” Data Input “L ” Command Input

5 R/W Read/Write

6 E Enable

7 DBO

DB0-DB7 are for 8-bit operation DB4-DB7 are for 4-bit operation

8 DB1

9 DB2

10 DB3

11 DB4

12 DB5

13 DB6

14 DB7

15 NC No Connection

16 NC No Connection

V DD O 0°C 5.00 +25°C 4.75 +50°C 4.50 VDD VO GND VDD – VO VDD – VO = LCD Drive Voltage VR10 to 20 kΩ VR VDD (+5V) Controller/ Driver E R/W RS VDD VO GND DB0-DB7 8 LCD Driver Driver