QT60160-ISG

Overview

The Microchip Technology QT60160-ISG is a digital burst mode charge-transfer touch sensor IC designed for matrix layout controls. It supports up to 16 keys using patented spread-spectrum technology. The device operates on a 1.8V to 5.5V supply and features an I2C slave interface at 100kHz. It includes self-calibration, auto drift compensation, and noise filtering within a 32-pin 5x5mm MLF package. Operating temperatures range from -40°C to +85°C.

Feature Summary

• Patented transverse charge-transfer sensing technology
• Integrated signal processing with self-calibration and drift compensation
• Spread-spectrum acquisition for robust EMI performance
• Configurable key sensitivity via serial interface commands

Applications

• Mobile phones
• Remote controls
• Domestic appliances
• PC peripherals
• Automotive interfaces

Procurement Notes

Verify the specific part number suffix against official documentation to confirm temperature grade and packaging configuration. Ensure compatibility with the host system's I2C voltage levels and check for moisture sensitivity handling requirements during assembly. Confirm that the selected supplier provides genuine components directly from authorized channels.

Selection Notes

Select this component when a maximum of 16 capacitive touch inputs are required in a compact footprint. It is suitable for designs utilizing single-sided PCBs or flexible circuits where low cost and minimal external components are priorities. Consider the QT60240 variant if more than 16 keys are needed, as both share identical functional specifications.

Part Context

This IC belongs to the QMatrix family of touch sensors developed by Quantum Research Group (QRG) and distributed by Microchip Technology. The series utilizes unique transverse charge-transfer sensing to enable mixed key sizes and shapes. The QT60160 specifically limits the active matrix to 16 keys compared to the 24-key capacity of its sibling model.

Replacement Considerations

The QT60240-ISG serves as a direct functional substitute offering expanded capacity to 24 keys while maintaining identical pinouts and software compatibility.