AR1100 Datasheet, PDF (3/58 Pages) Microchip Technology – AR1100 Resistive USB and RS-232 Touch Screen Controller

AR1100 RESISTIVE USB AND RS-232
TOUCH SCREEN CONTROLLER
AR1100 Resistive USB and RS-232 Touch Screen Controller
Special Features:
• RoHS Compliant
• Power-saving Sleep mode
• Industrial Temperature Range
• Built-in Drift Compensation Algorithm
• 96 Bytes of User EEPROM
Power Requirements:
• Operating Voltage: 3.3-5.0V +/- 5%
• Standby Current:
- <10 uA (UART)
- <325 uA (USB)
• Operating Current:
- <17 mA (no touch)
- <25 mA (touch) (see Note below)
Note: Results vary slightly with sensor.
Touch Modes:
• Off, Stream, Down and Up
Touch Sensor Support:
• 4-wire, 5-wire and 8-wire Analog Resistive
• Lead-to-Lead Resistance: 50-2000 Ohm
• Layer-to-Layer Capacitance: 0-0.5 uF
Touch Resolution:
• 10-bit Resolution (maximum)
Touch Coordinate Report Rate:
• 150 Reports Per Second (typ.) (see Note below)
Note:
Actual report rate is dynamically/automat-
ically maximized according to the electri-
cal characteristics of the sensor in use.
Communication:
• Automatic Detection/Selection
• UART, 9600 BAUD
• USB V2.0 Compliant, Full Speed
- HID-GENERIC
- HID-MOUSE
- HID-DIGITIZER
Package Types
The device will be offered in the following packages:
• 20-Lead QFN (5 x 5 mm)
• 20-Lead SOIC
• 20-Lead SSOP
 2011 Microchip Technology Inc.
DS41606B-page 3