AR1010-I/SS

Overview

The Microchip AR1010-I/SS is a resistive touch screen controller from the mTouch AR1000 series, designed for cost-effective integration in small form factor applications. It supports 4-wire, 5-wire, and 8-wire analog resistive touch sensors with a maximum 10-bit resolution. The device operates on a supply voltage of 2.5V to 5.0V ±5%, drawing 3 mA typical current in no-touch mode and 17 mA typical during touch events. It features a built-in drift compensation algorithm and power-saving sleep modes. The component is housed in an SSOP-20 package and supports industrial temperature ranges.

Feature Summary

• Supports 4-Wire, 5-Wire, and 8-Wire analog resistive touch sensors
• Built-in drift compensation algorithm for stable performance
• Power-saving sleep mode with low standby current
• 10-bit resolution with up to 140 reports per second

Applications

• Mobile communication devices
• Personal Digital Assistants (PDA)
• Industrial control panels

Procurement Notes

Verify the specific suffix 'I/SS' corresponds to the SSOP-20 package and industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status through official Microchip documentation or authorized distributors before procurement.

Selection Notes

Select this model when interfacing with standard resistive touch screens requiring SPI, I2C, or UART communication. Ensure the host system supports the required interface protocol. Verify that the touch sensor layer resistance and capacitance values fall within the specified operational limits of the controller.

Part Context

The AR1010-I/SS belongs to the Microchip mTouch AR1000 series, which provides universal resistive touch solutions. This series is engineered for high-volume production and quick time-to-market requirements, offering a balance of performance and cost-efficiency for embedded touch interfaces.

Replacement Considerations

The AR1010T-I/ML is a variant within the same family but utilizes a VQFN-20 package. Pinout compatibility must be verified against the datasheet before substitution. Other models in the AR1000 series may offer different interface options or packages.