Microchip AR1021 Handleiding

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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 µA, typical; 125 µA (maximum)

-2.5V: 40 µA, typical; 60 µA (maximum)

•Operating “No touch” Current:

-3.0 mA (typical)

•Operating “Touch” Current:

-17 mA, typical, with a touch sensor having

200 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: 50-2,000typical)

•Layer-to-Layer Capacitance: 0-0.5 µF

•Touch Sensor Time Constant: 500 µs (maximum)

Touch Resolution

•10-bit Resolution (maximum)

Touch Coordinate Report Rate

•140 Reports Per Second (typical) with a Touch

Sensor of 0.02 µF with 200 Layers

•Actual Report Rate is dependent on the Touch

Sensor used

Communications

•SPI, Slave mode, p/n AR1021

• I2C, Slave mode, p/n, AR1021

•UART, 9600 Baud Rate, p/n AR1011

AR1000 SERIES RESISTIVE TOUCH

SCREEN CONTROLLER

AR1000 Series Resistive Touch Screen Controller

Product specificaties