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AND721GST Datasheet(PDF) 2 Page - Purdy Electronics Corporation |
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AND721GST Datasheet(HTML) 2 Page - Purdy Electronics Corporation |
2 / 2 page Intelligent Character Display AND721GST/GST-LED Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 7-27-99 Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com 2 Power Supply The LCD panel is driven by the voltage V DD–V O, so an adjustable VO is required for contrast control and temperature compensation. Power Supply Block Diagram Block Diagram Dimensional Outline 1 GND Ground 2 VDD +5 Power Supply 3 VO LCD Drive Voltage 4RS “H” Data Input “L” Command Input 5 R/W Read/Write 6 E Enable 7 DB0 Data Bus 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 LED LED Anode (+) 16 LED LED Cathode Ground Connector Pin Assignment Pin # Signal Function Temperature Variations Temperature VDD–VO 0°C 5.00 +25°C 4.75 +50°C 4.50 V DD V O GND V DD – VO V DD – VO = LCD Drive Voltage VR10 to 20 k Ω VR V DD (+5V) Driver Driver Driver Driver Controller/ Driver 16 16 16 40 4 4 40 40 40 20 4 20 LCD E R/W RS V DD V O GND DBO-DB7 8 Connector Pin Assignment |
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Similar Description - AND721GST |
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