Displays AND501GST/GST-LED 20 Characters x 2 Lines Intelligent Alphanumeric Displays The AND501GST/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 • • • • • • • RoHS Compliant AND501GST: Super Twist Technology AND501GST-LED: STNwith LED backlight Low voltage, +5V single power supply Controller on board (HD44780) RoHS compliant 11 commands for control Absolute Maximum Ratings (Continued) Item Symbol Rating Unit Operating Temperature Top 0 to +50 °C Storage Temperature Tstg –20 to +60 °C Electrical Characteristics (TA = 25°C) Item Symbol Min. Typ. Max. VDD 4.75 5.0 5.25 GND – 0 – LED Forward Voltage (IF = 200 mA) VF 3.8 4.1 4.4 V LED Reverse Current (VR = 8 V) IR – – 2.2 mA “High” Level (VDD = 5.0 V) VIH 2.2 – – “Low” Level (IOH = 0.2 mA) VIL 0 – 0.6 “High” Level (-IOH = 0.2 mA) VOH 2.4 – – “Low” Level (IOL = 1.2 mA) VOL Dot Matrix Dimensions 0.50 3.20 Supply Voltage 5.55 0.65 0.05 0.60 0.05 0.40 Input Voltage Mechanical Characteristics Item Specification Outline Dimensions Unit 116 (H) x 37 (V) x 11 (D) mm Character Size 3.20 (H) x 5.55 (V) mm Viewing Area 83.0 (H) x 18.6 (V) mm Dot Size 0.60 (H) x 0.65 (V) mm Dot Pitch 0.65 (H) x 0.70 (V) mm Absolute Maximum Ratings Item Output Voltage Symbol Rating Unit Supply Voltage VDD 7.0 V Input Voltage VIN 0 ≤ VIN ≤ VDD V LED Forward Current IF 275 mA LED Reverse Voltage VR 8 V LED Power Dissipation PD 1270 mW Unit V V V – – 0.6 Optical Characteristics (TA = 25˚C, φ = 0°, θ = 0°) Symbol Min. Typ. Max. Unit Viewing Angle Item φ -10 25 40 degree Contrast K – 3.0 – – Turn On Ton – 200 400 ms Turn Off Toff – 250 400 ms 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 T l 408 23 8200 F 408 33 128 l @ d l t i ANDdi l 1 Displays AND501GST/GST-LED Intelligent Character Display Connector Pin Assignment Pin No. Signal 1 GND Ground 2 VDD +5 Power Supply 3 VD LCD Drive Voltage 4 RS “H” Data Input “L” Command Input 5 R/W Read/Write 6 E 7 DB0 8 DB1 Function Enable Signal Power Supply LCD panel is driven by the voltage VDD–VO, so an adjustable VO is required for contrast control and temperature compensation. Temperature Variations Temperature VDD–VO 0°C 4.80 +25°C 4.65 +50°C 4.35 Power Supply Block Diagram 9 DB2 10 DB3 11 DB4 12 DB5 13 DB6 14 DB7 15 LED LED Anode 16 LED LED Cathode Data Bus DB0-DB7 are for 8-bit operation DB4-DB8 are for 4-bit operation Block Diagram Dimensional Outline Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 T l 408 23 8200 F 408 33 128 l @ d l t i ANDdi l 2