APT7843NI 查看數據表（PDF） - Anpec Electronics

零件编号

产品描述 (功能)

生产厂家

APT7843NI

Touch Screen Controller

Anpec Electronics 

APT7843

Block Diagram

PENIRQ

X+

X-

Y+

Y-

IN3

IN4

VREF

Screen Driver

MUX

12 Bit or 8 Bit

A/D Converter

Serial

Interface

DCLK

CS

DIN

DOUT

BUSY

Pin Descriptions

PIN NAME DESCRIPTION

1

+Vcc Power Supply,2.2V to 5V.

2

X+ Connect to X+ on touch screen.

3

Y+ Connect to Y+ on touch screen.

4

X- Connect to X- on touch screen.

5

Y- Connect to Y- on touch screen.

6

GND Ground

7

IN3 Auxiliary Input of A/D converter.

8

IN4 Auxiliary input of A/D converter.

9

VREF Voltage Reference Input.

10 +Vcc Power Supply,2.2V to 5V.

11 PENIRQ Pen interrupt. Open anode output (requires

10kΩ 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.

Copyright  ANPEC Electronics Corp.

2

Rev. A.8 - Apr., 2002

www.anpec.com.tw

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