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APT7843NI Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APT7843NI Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 18 page Copyright ANPEC Electronics Corp. Rev. A.8 - Apr., 2002 APT7843 www.anpec.com.tw 1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Touch Screen Controller Description The APT7843 Touch Screen Controller IC provides all the screen drive , A/D converter and control circuits to easily interface to 4 wire resistive touch screen. The IC continually monitors the screen waiting for a touch. When the screen touched , the IC performs A/D converter to determine the location of touch. Also , this device has 2 auxiliary input to A/D con- verter , allowing for the measurement of other inputs such as battery voltage. Applications • PDAs • Handheldcomputer • Touch-screen kiosks Features • 16 pin SSOP or TSSOP • Operates with four wire touch screen • 8-bit or 12 bit A/D converter • Ratiometric Conversion eliminates screen calibration • 2 auxiliary analog inputs • 4 wire serial interface • Full power down control +Vcc 1 14 15 16 8 7 6 5 4 3 2 11 12 13 9 10 IN3 GND Y- X- Y+ X+ DOUT BUSY DIN DCLK IN4 VREF +Vcc CS PENIRQ Pin Assignment Order Information APT7843 Temp. Range Package Code Package Code N : SSOP O : TSSOP Temp. Range I : - 40 to 85 C ° |
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