IQS263B-0-MSR

Overview

The IQS263B-0-MSR is a 3-channel capacitive touch and proximity controller from the ProxSense series. It supports self or projected capacitance modes with an 8-bit resolution slider or scroll wheel configuration. The device operates on a supply voltage of 1.8V to 3.6V within a temperature range of -20°C to +85°C. It features an I2C interface, up to 80Hz report rate, and includes automatic tuning implementation (ATI). Key capabilities include movement detection, SAR compliance, and left/right flick gesture recognition.

Feature Summary

• Configurable 8-bit coordinate calculation for sliders or scroll wheels using three channels
• Integrated Automatic Tuning Implementation (ATI) for optimal sensitivity adjustment
• On-chip movement detection algorithm to distinguish user activation from stuck conditions
• Supports both event-driven and streaming I2C communication modes

Applications

• Volume control and lid closure detection for laptops
• Remote controls utilizing sliders or scroll wheels
• Movement detection devices such as anti-theft systems
• Portable electronics including MP3 players
• Wearable electronics requiring low power consumption

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and revision level. Ensure compatibility with system voltage requirements between 1.8V and 3.6V. Confirm that the host controller supports the required I2C protocol and can handle the specified report rates. Check for any regional distribution restrictions or end-of-life status updates prior to finalizing procurement plans.

Selection Notes

Select this component when a compact solution for 3-channel sensing with integrated slider or wheel functionality is required. It is suitable for battery-powered applications due to its low power consumption and hibernation mode. Consider the MSOP-10 package for space-constrained designs. Ensure the application environment allows for proper grounding and decoupling to maintain noise immunity and ESD protection standards.

Part Context

The IQS263B belongs to Azoteq's ProxSense series, designed for high-sensitivity capacitive sensing. It integrates an internal regulator and reference capacitor to reduce external component count. The device is part of the IQ Switch family, focusing on efficient power management and robust signal processing for reliable touch and proximity detection in consumer and industrial electronics.

Replacement Considerations

Check the official Azoteq cross-reference list for direct replacements. Verify pinout compatibility if substituting with other IQS263 variants. Ensure functional equivalence regarding channel count and interface protocols before replacing.