XRA1201IL24-F

Overview

The XRA1201IL24-F is a 16-bit I2C and SMBus GPIO expander manufactured by MaxLinear. It operates within a supply voltage range of 1.65 V to 3.6 V and supports clock frequencies up to 400 kHz. The device provides 16 general-purpose input/output pins with an open-drain output type capable of sourcing 160 mA total current. It features interrupt output functionality and includes 3 kV ESD protection. The component is housed in a QFN-EP-24 package, suitable for surface-mount installation, and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Provides 16 configurable digital I/O channels via I2C or SMBus serial interfaces
• Includes dedicated interrupt output pin for efficient host notification of I/O state changes
• Integrates robust electrostatic discharge protection rated at 3 kV on all pins

Applications

• Embedded systems requiring additional digital control lines in space-constrained designs
• Industrial automation controllers needing isolated or expanded I/O capabilities
• Consumer electronics utilizing low-voltage logic families for peripheral management

Procurement Notes

Verify the specific suffix and package variant against the original design specification before procurement. Confirm that the target system voltage aligns with the 1.65 V to 3.6 V operating range. Check for moisture sensitivity labeling if the component has been stored for extended periods. Ensure the I2C address configuration meets the system requirements to avoid bus conflicts.

Selection Notes

Select this component when a high-density GPIO solution is required over a two-wire serial interface. Compare the 400 kHz maximum clock speed against the system's communication latency requirements. Evaluate the 160 mA total sink/source capability against the aggregate load of connected peripherals. Consider the QFN-EP-24 thermal pad requirements for adequate heat dissipation during continuous operation.

Part Context

This part belongs to the XRA1200 series of I/O expanders from MaxLinear. It shares architectural similarities with other members like the XRA1203 but differs in supported clock speeds and packaging options. The series is designed to replace parallel port expanders in modern low-power applications, offering software-configurable polarity and drive strength.