IQS7222D001CSR

Overview

The IQS7222D001CSR is a sensor interface controller from Azoteq's ProxFusion series, designed for capacitive sensing applications. It supports 14 channels of mutual capacitance and 8 channels of self-capacitance sensing. The device features an I2C interface and configurable general-purpose input/output pins. It operates within a supply voltage range of 1.71 V to 3.5 V and functions across a temperature range of -40°C to +85°C. The component is packaged in a WLCSP-18 format with dimensions of 3 mm x 3 mm x 0.5 mm.

Feature Summary

• Supports simultaneous mutual and self-capacitive sensing configurations
• Integrates configurable GPIOs alongside standard communication interfaces
• Enables proximity detection capabilities through dedicated sensing channels

Applications

• Capacitive touch sensor controllers
• Proximity detection systems
• Wearable device interfaces

Procurement Notes

Verify the specific suffix CSR against official documentation to confirm reel packaging specifications. Confirm RoHS compliance status through current manufacturer declarations. Ensure compatibility with existing I2C bus architectures before integration. Check for any export control restrictions or required documentation prior to ordering.

Selection Notes

Select this model when 14 mutual and 8 self-capacitive channels are required. Consider the WLCSP-18 package size for space-constrained designs. Verify that the operating voltage range aligns with the target system power rails. Evaluate the need for configurable GPIOs versus dedicated sensing lines.

Part Context

This component belongs to the IQS7222 family, which includes variants like IQS7222A, B, and C. These devices share the ProxFusion technology platform. The D variant specifically targets applications requiring a higher count of mutual capacitance channels compared to other family members.

Replacement Considerations

Check for updated revisions within the IQS7222D series. Verify pin-to-pin compatibility with previous versions if upgrading. Consult official substitution lists for any discontinued equivalents.