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APT7843NI Datasheet(PDF) 2 Page - Anpec Electronics Coropration

Part # APT7843NI
Description  Touch Screen Controller
PDF  18 Pages
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APT7843NI Datasheet(HTML) 2 Page - Anpec Electronics Coropration

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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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