AR1010T-I/SO

Overview

The AR1010T-I/SO is a resistive touch screen controller from Microchip Technology, housed in a 20-SOIC package. It supports 4-wire, 5-wire, and 8-wire analog resistive touch screens with a sampling rate of 140 S/s and 10-bit resolution. The device operates on a supply voltage between 2.5 V and 5.25 V, drawing 17 mA during operation. It features low-power sleep modes, inter-layer capacitance detection, and built-in drift compensation algorithms for stable performance across industrial temperature ranges.

Feature Summary

• Supports 4-Wire, 5-Wire, and 8-Wire analog resistive touch screens
• Integrated UART interface for communication
• Built-in drift compensation algorithm and inter-layer capacitance detection
• Low-power sleep mode capability

Applications

• Industrial control panels requiring resistive touch input
• Medical devices needing reliable touch interfaces
• Automotive infotainment systems

Procurement Notes

Verify the specific suffix 'I/SO' to confirm the industrial temperature range (-40°C to +85°C) and SOIC-20 package type. Ensure compatibility with the host system's UART interface requirements. Check for moisture sensitivity levels if storage conditions are not controlled. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Selection Notes

Select this component when interfacing with standard resistive touch screens using UART communication. Compare against the AR1011 series if additional key inputs or different packaging (e.g., QFN) are required. Ensure the power supply meets the 2.5V to 5.25V operating range. Consider the 17mA active current consumption for battery-powered applications.

Part Context

This part belongs to the AR1010/AR1011 family of touch sensing controllers designed by Microchip. These controllers are optimized for resistive touch applications, offering high accuracy and noise immunity. The AR1010T variant specifically denotes the tape and reel packaging option for automated assembly processes.

Replacement Considerations

The AR1011T-I/SO is a compatible alternative within the same family, offering similar functionality in the same SOIC-20 package. Verify pin-to-pin compatibility and software register mapping before substitution.