IQS133-00000-MSR

Overview

The IQS133-00000-MSR is a three-channel capacitive touch sensor IC from the Azoteq ProxSense family, designed for button and proximity detection applications. It operates within a supply voltage range of 3V to 5.5V and draws a typical supply current of 18µA. The device supports an I2C interface for communication and is housed in a 10-MSOP (10-TFSOP) package with dimensions of 3.00mm width. It functions reliably across an industrial temperature range of -40°C to +85°C. The component includes built-in proximity sensing capabilities alongside standard touch input handling.

Feature Summary

• Integrates three independent capacitive channels for simultaneous touch and proximity detection
• Supports I2C digital interface for straightforward system integration
• Features low-power operation suitable for battery-constrained designs
• Includes hardware-based noise rejection and environmental adaptation

Applications

• Consumer electronics user interface controls
• Industrial control panels requiring robust touch input
• Home appliance touch interfaces
• Medical device operator panels

Procurement Notes

This specific part number is officially listed as End-of-Life (EOL) by the manufacturer. Verification of availability should focus on remaining stock from authorized distributors or secondary market sources rather than direct manufacturing orders. Buyers must confirm RoHS compliance status and check for any product change notices that may affect pin compatibility or electrical characteristics before procurement.

Selection Notes

Engineers replacing this component should evaluate newer members of the IQ Switch or ProxSense families that offer similar channel counts and package footprints. Compatibility checks must verify I2C address configurations, voltage level tolerances, and mechanical mounting constraints. Since the original part is obsolete, selecting a pin-compatible successor requires careful review of updated datasheets to ensure functional equivalence in both software drivers and hardware layout.

Part Context

The IQS133 belongs to Azoteq's ProxSense series, which specializes in capacitive sensing solutions. This series is known for integrating proximity detection alongside touch inputs, allowing for gesture recognition and hover functionality. The 10-MSOP package provides a compact form factor suitable for space-constrained printed circuit board designs in modern electronic devices.

Replacement Considerations

Official EOL notice confirms discontinuation. Potential substitutes include other IQS1xx series variants or IQS2xx series components with matching channel counts. Verify package compatibility and I2C interface support when evaluating alternatives.