Datasheet

 2011 Microchip Technology Inc. DS41606B-page 9
AR1100 RESISTIVE USB AND RS-232 TOUCH SCREEN CONTROLLER
3.0 HARDWARE
3.1 Pin Assignments
TABLE 3-1: PIN ASSIGNMENTS
Pin Function Description/Comments
SSOP, SOIC QFN
118 V
DD Power
2 19 OSC1 Oscillator
3 20 OSC2 Oscillator
41 MODEG
ND: 5-Wire
Open: 4-/8-Wire
5 2 LED Led control
6 3 (Y+) Sensor connection
4W: n/a
5W: n/a
8W: Y+
7 4 X+ Sensor connection
8 5 SY- Sensor connection
9 6 SX+ Sensor connection
10 7 UART-TX UART Transmit Data
11 8 WAKE Wake pin
12 9 UART-RX UART Receive Data
13 10 SX- Sensor connection
4W: n/a
5W: WSX-
8W: SX-
14 11 X- Sensor connection
15 12 Y+(SY+) Sensor connection
4W: Y+
5W: Y+
8W: SY+
16 13 Y- Sensor connection
17 14 VUSB USB Internal Voltage Reference
18 15 USB-D- USB data I/O
19 16 USB-D+ USB data I/O
20 17 V
SS GND