Datasheet

 2009-2012 Microchip Technology Inc. Preliminary DS41393B-page 5
AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
1.0 DEVICE OVERVIEW
The Microchip mTouch
TM
AR1000 Series Resistive
Touch Screen Controller is a complete, easy to
integrate, cost-effective and universal touch screen
controller chip.
The AR1000 Series has sophisticated proprietary
touch screen decoding algorithms to process all touch
data, saving the host from the processing overhead.
Providing filtering capabilities beyond that of other
low-cost devices, the AR1000 delivers reliable, vali-
dated, and calibrated touch coordinates.
Using the on-board EEPROM, the AR1000 can store
and independently apply the calibration to the touch
coordinates before sending them to the host. This
unique combination of features makes the AR1000 the
most resource-efficient touch screen controller for
system designs, including embedded system
integrations.
1.1 Applications
The AR1000 Series is designed for high volume, small
form factor touch solutions with quick time to market
requirements – including, but not limited to:
• Mobile communication devices
• Personal Digital Assistants (PDA)
• Global Positioning Systems (GPS)
• Touch Screen Monitors
•KIOSK
• Media Players
• Portable Instruments
• Point of Sale Terminals
FIGURE 1-1: BLOCK DIAGRAM
FIGURE 1-2: PIN DIAGRAM
20
19
18
17
16
15
14
13
12
11
V
SS
X-
X+
5WSX-
Y-
Y+
SX+
SDI/SDA/RX
NC
SCK/SCL/TX
1
2
3
4
5
6
7
8
9
10
V
DD
M1
SY-
M2
WAKE
SIQ
SY+
SS
SDO
NC
AR1000 Series (SSOP, SOIC)
20
19
18
17
16
15
14
13
12
11
X+
5WSX-
Y-
Y+
SX+
1
2
3
4
5
6 7
8
9
10
SY-
M1
M2
WAKE
SIQ
SY+
SS
VDD
VSS
X-
SDO
NC
SCK/SCL/TX
NC
SDI/SDA/RX
AR1000 Series (QFN)