AR1000 Datasheet | Microchip Technology

Features - Ro HS pliant - Power-Saving Sleep mode - Industrial Temperature Range - Built-in Drift pensation 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 m A (typical) - Operating “Touch” Current: - 17 m A, 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 munications - SPI, Slave mode, p/n AR1021 - I2C, Slave mode, p/n, AR1021 - UART, 9600 Baud Rate, p/n AR1011  2009-2016 Microchip Technology Inc. DS40001393C-page 1 AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER Table of Contents 1.0 Device Overview 3 2.0 Basics of Resistive Sensors 5 3.0 Hardware 9 4.0 I2C munications...