The Microchip AR1021 is a resistive touch screen controller designed for integration into various applications, including mobile devices, PDAs, GPS units, and kiosks. It operates within a voltage range of 2.5V to 5.0V and features low standby and operating currents, making it suitable for power-sensitive applications. The controller supports multiple touch sensor configurations, including 4-wire, 5-wire, and 8-wire analog resistive sensors, with a typical touch resolution of 10 bits and a report rate of 140 reports per second, depending on the touch sensor used. The AR1021 includes built-in drift compensation algorithms and 128 bytes of user EEPROM for calibration retention, enhancing the accuracy and reliability of touch data. Communication options include I2C and SPI in slave mode, providing flexibility for integration into existing systems. The device is RoHS compliant and operates within an industrial temperature range, making it a robust choice for various embedded system designs.
The Microchip mTouch™ AR1000 Series Resistive Touch Screen Controller is a complete, easy to integrate, cost-effective and universal touch screen controller chip solution. The AR1000 Series has sophisticated proprietary touch screen decoding algorithms to fully process all touch data and save the host from this overhead. More than the usual “preprocessing” features of other low cost devices, the AR1000 delivers reliable, validated and calibrated touch coordinates. Using its onboard EEPROM, the AR1000 can store and independently apply the calibration to the touch coordinates before sending them to the host. This unique combination makes the AR1000 the most resource efficient touch screen controller for embedded designs.
The AR1021 touch screen controller supports I2C™Compatible and SPI communication. Please reference the AR1011 touch screen controller for UART communication.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Microcontrollers (MCU) |
| Product Number | en557224 |
| Product Name | AR1021 |
| Package Type | SOIC; SSOP; Other; ['QFN', 'SSOP', 'SOIC'] |
