AND671GST-LED

AND671GST/GST-LED 1 Line x 16 Characters Intelligent Character Display The AND671GST/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 • • • • • • • AND671GST: Super Twist Technology AND671GST-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) Absolute Maximum Ratings (Continued) Item LED Reverse Voltage LED Power Dissipation Operating Temperature Storage Temperature Symbol VR PD Top Tstg Rating 8 800 0 to +50 –20 to +60 Unit V mW °C °C Dot Matrix Dimensions 3.07 0.65 0.05 0.70 Electrical Characteristics (TA = 25°C) Item Supply Voltage Symbol VDD VDD-VO VIH VIL Min. 4.75 3.0 2.2 0 Typ. 5.0 – – – Max. 5.25 6.3 – 0.6 Unit V V V 6.56 0.65 0.05 High Level In Voltage (VDD = 5.0V) Low Level In Voltage (IOH = 0.2 mA) High Level Output Volt. (–IOH = 0.2 mA) Unit mm mm mm mm mm Low Level Output Volt. (IOL = 1.2 mA) LED Forward Voltage (IF = 150 mA) LED Reverse Current (VR = 8 V) 0.40 VOH 2.4 – – V Mechanical Characteristics Item Outline Dimensions Character Size Viewing Area Dot Size Dot Pitch Specification 80 (W) x 36 (H) x 11 (D) 3.07 (W) x 6.56 (H) 64.5 (W) x 13.8 (H) 0.55 (W) x 0.75 (H) 0.63 (W) x 0.83 (H) VOL VF IR – 3.8 – – 4.1 – 0.4 4.4 1.0 V V mA Optical Characteristics (TA = 25˚C, φ= 0°, θ = 0°) Item Symbol φ K Ton Toff Min. – – – – Typ. 50 6.0 200 250 Max. – – 400 400 Unit degree – ms ms Viewing Angle Absolute Maximum Ratings Item Supply Voltage Input Voltage LED Forward Current Symbol VDD VIN IF Rating 7.0 0 ≤ VIN ≤ VDD 200 Unit V V mA Contrast Turn On Turn Off 2-4 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086 Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com 6/19/98 AND671GST/GST-LED Intelligent Character Display Connector Pin Assignment Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Signal GND VDD VO RS R/W E DBO DB1 DB2 DB3 DB4 DB5 DB6 DB7 VDD – VO = LCD Drive Voltage VR10 to 20 kΩ GND VDD (+5V) Power Supply Function The LCD panel is driven by the voltage VDD–VO, so an adjustable VO is required for contrast control and temperature compensation. Temperature Variations Temperature 0°C +25°C +50°C Power Supply Block Diagram VDD–VO Ground +5 Power Supply LCD Drive Voltage “H” Data Input “L” Command Input Read/Write Enable 5.00 4.75 4..50 Data Bus DB0-DB7 are for 8-bit operation DB4-DB7 are for 4-bit operation VDD – VO VO VR VDD Block Diagram E R/W RS DB0-DB7 VDD VO GND 40 20 40 8 Controller/ Driver 16 LCD 8 8 Dimensional Outline 6/19/98 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086 Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com 2-5