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APT7843NI Datasheet(PDF) 2 Page - Anpec Electronics Coropration |
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APT7843NI Datasheet(HTML) 2 Page - Anpec Electronics Coropration |
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2 / 18 page  Copyright ANPEC Electronics Corp. Rev. A.8 - Apr., 2002 APT7843 www.anpec.com.tw 2 PIN NAME DESCRIPTION 1+Vcc Power Supply,2.2V to 5V. 2X+ Connect to X+ on touch screen. 3Y+ Connect to Y+ on touch screen. 4X- Connect to X- on touch screen. 5Y- Connect to Y- on touch screen. 6GND Ground 7IN3 Auxiliary Input of A/D converter. 8IN4 Auxiliary input of A/D converter. 9VREF Voltage Reference Input. 10 +Vcc Power Supply,2.2V to 5V. 11 PENIRQ Pen interrupt. Open anode output (requires 10k Ω to 100kΩ pull-up resistor externally) 12 DOUT Serial Data Output. This output is high impedance when CS is HIGH. 13 BUSY Busy Output. This output is high impedance when CS is HIGH. 14 DIN Serial Data input. 15 CS Chip Select. (Active Low) 16 DCLK Serial Clock. Pin Descriptions Block Diagram V REF IN4 IN3 Y- Y+ X+ X- PENIRQ DOUT BUSY CS DIN DCLK 12 Bit or 8 Bit A/D Converter Serial Interface Screen Driver MUX |
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