DEVICE OVERVIEW
The Microchip mTouchTM AR1000 Series Resistive Touch Screen Controller is a complete, easy to integrate, cost-effective and universal touch screen controller chip.

Special Features:
• RoHS Compliant
• Power-Saving Sleep mode
• Industrial Temperature Range
• Built-in Drift Compensation Algorithm
• 128 Bytes of User EEPROM

Power Requirements:
• Operating Voltage: 2.5-5.0V ±5%
• Standby Current:
    - 5V: 85 uA, typical; 125 uA (maximum)
    - 2.5V: 40 uA, typical; 60 uA (maximum)
• Operating “No touch” Current:
    - 3.0 mA (typical)
• Operating “Touch” Current:
    - 17 mA, typical, with a touch sensor having 200Ω layers.
    - Actual current is dependent on the touch sensor used
• AR1011/AR1021 Brown-Out Detection (BOR) set to 2.2V.

Touch Modes:
• Off, Stream, Down, Up and more.

Touch Sensor Support:
• 4-Wire, 5-Wire and 8-Wire Analog Resistive
• Lead-to-Lead Resistance: 50-2,000Ω (typical)
• Layer-to-Layer Capacitance: 0-0.5 uF
• Touch Sensor Time Constant: 500 us (maximum)

Touch Resolution:
• 10-bit Resolution (maximum)

Touch Coordinate Report Rate:
• 140 Reports Per Second (typical) with a Touch Sensor of 0.02 uF with 200Ω Layers
• Actual Report Rate is dependent on the Touch Sensor used.

Communications:
• SPI, Slave mode, p/n AR1021
• I2CTM, Slave mode, p/n, AR1021
• UART, 9600 Baud Rate, p/n AR1011

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