AR1000 Datasheet, PDF (7/37 Pages) Microchip Technology – Resistive Touch Screen Controller

6 PIN DIAGRAM
Figure 2 : Pin Diagrams – SOIC / SSOP and QFN Packages
Pin Name
VDD
M1
SY-
M2
WAKE
SIQ
SY+
SS
SDO
NC
SCK/SCL/TX
NC
SDI/SDA/RX
SX+
Y+
Y-
5WSX-
X+
X-
VSS
Pin #
SOIC, SSOP
QFN
1
18
2
19
3
20
4
1
5
2
6
3
7
4
8
5
9
6
10
7
11
8
12
9
13
10
14
11
15
12
16
13
17
14
18
15
19
16
20
17
Table 2: Pin Descriptions
Pin Description
Supply Voltage
Communication Selection
Sense Y- (8-Wire). Tie to VSS, if not used.
4/8-wire or 5-wire Sensor Selection
Touch Wake-Up
LED drive / SPI Interrupt. No Connect, if not used.
Sense Y+ (8-Wire). Tie to VSS, if not used.
Slave Select (SPI). Tie to VSS, if not used.
SPI Serial Data Output / I²C Interrupt. Tie to VSS, if UART.
No Connection. No Connect or tie to VSS or VDD.
SPI/I²C Serial Clock / UART Transmit
No Connection. No Connect or tie to VSS or VDD.
I²C Serial Data / SPI Serial Data Input / UART Receive
Sense X+ (8-Wire). Tie to VSS, if not used.
Y+ Drive
Y- Drive
5W Sense (5-Wire) / Sense X- (8-Wire). Tie to VSS, if not used.
X+ Drive
X- Drive
Supply Voltage Ground
© 2009 Microchip Technology, Inc.
DS41393A-Page 3