APT7846 查看數據表（PDF） - Anpec Electronics
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APT7846 Datasheet PDF : 15 Pages
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APT7846
Block Diagram
PENIRQ
X+
X-
Y+
Y-
V*)6
IN
V4-.
Screen Driver
MUX
12 Bit or 8 Bit
A/D Converter
Serial
Interface
Internal
Reference
Pin Description
PIN
NAME DESCRIPTION
1
+Vcc Power Supply , 2.7V 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
V*)6
Measure Battery Input.
8
IN
Auxiliary input of A/D converter.
9
V4-.
Voltage Reference Input or Output.
10
+Vcc Power Supply , 2.7V to 5V.
11
PENIRQ Pen interrupt. (requires 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 whenCS is HIGH.
14
DIN
Serial Data input.
15
CS
Chip Select. (Active Low)
16
DCLK Serial Clock.
DCLK
CS
DIN
DOUT
BUSY
Copyright ANPEC Electronics Corp.
2
Rev. A.6 - Dec., 2001
www.anpec.com.tw
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