Microchip | AR1011-I/SS

The AR1011-I/SS is a Resistive Touch Screen Controller with 9600 baud rate and 10-bit resolution, available in surface mount SSOP-20 package.

It is cost-effective, easy to integrate and universal touch screen controller chip solution.

Features:

• RoHS Compliant
• Power-Saving Sleep mode
• Industrial Temperature Range
• Built-in Drift Compensation Algorithm
• 128 Bytes of User EEPROM
• 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
• Touch Sensor Support:
  • Wire, 5-Wire and 8-Wire Analog Resistive
  • Lead-to-Lead Resistance: 50-2,000 Ω (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:
  • UART, 9600 Baud Rate, p/n AR1011

Applications:

• Mobile communication devices
• Personal Digital Assistants (PDA)
• Global Positioning Systems (GPS)
• Touch Screen Monitors
• KIOSK
• Media Players
• Portable Instruments
• Point of Sale Terminals