XRA1201IG24TR-F

Overview

The XRA1201IG24TR-F is a 16-bit I/O expander manufactured by MaxLinear, designed for systems requiring additional general-purpose input and output pins via serial communication interfaces. The device operates within a supply voltage range of 1.65 V to 3.6 V and supports clock frequencies up to 400 kHz on the I2C/SMBus interface. It features an interrupt output capability and includes ESD protection rated at 3 kV. The component is housed in a QFN-EP-24 package suitable for surface-mount technology applications.

Feature Summary

• Provides 16 configurable general-purpose digital I/O lines accessible through standard I2C or SMBus protocols.
• Includes an interrupt output pin that signals state changes on configured input ports to the host processor.
• Integrates electrostatic discharge (ESD) protection mechanisms to safeguard internal circuitry against transient voltage events.

Applications

• Embedded systems requiring expansion of GPIO resources for sensor interfacing or peripheral control.
• Industrial automation controllers needing reliable I/O extension under varying environmental conditions.
• Consumer electronics devices utilizing low-voltage logic families for compact board designs.

Procurement Notes

Verify the specific suffix and tape-and-reel configuration against official MaxLinear documentation before procurement. Confirm RoHS compliance status and moisture sensitivity level requirements with the supplier. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the manufacturer's latest product change notices to confirm current production status and availability constraints.

Selection Notes

Select this component when a system requires multiple digital I/O lines controlled via I2C or SMBus without occupying additional microcontroller pins. Consider the 1.65 V to 3.6 V operating range to ensure compatibility with the target system's logic levels. Evaluate the QFN-EP-24 package dimensions against available board space and thermal management capabilities. Verify that the 400 kHz maximum clock speed meets the timing requirements of the host controller.

Part Context

This part belongs to the XRA1201 series of I/O expanders from MaxLinear, which are designed for low-power, high-density integration in portable and industrial applications. The series typically shares common architectural features such as I2C/SMBus compatibility and interrupt-driven operation. Variants within the family may differ in package type, pin count, or specific electrical characteristics, necessitating careful review of individual datasheets for precise implementation details.

Replacement Considerations

Publicly confirmed substitute part numbers for the XRA1201IG24TR-F were not identified in the provided reference material. Engineers should consult MaxLinear's official cross-reference tools or contact technical support directly for validated alternatives. Any replacement must match the original's pinout, voltage range, and interface protocol to ensure functional equivalence without redesigning the host system.