XRA1207IL24-F

Overview

The XRA1207IL24-F is a 16-bit general-purpose input/output (GPIO) expander featuring an I2C and SMBus interface. It operates within a supply voltage range of 1.65V to 3.6V and supports clock frequencies up to 400 kHz. The device includes internal 100K ohm pull-up resistors on each I/O pin after power-up, providing open-drain output types with interrupt capabilities. It is housed in a 24-QFN package and functions across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates 16-bit GPIO expansion via standard I2C/SMBus communication protocols
• Includes internal 100K ohm pull-up resistors on all I/O pins post-power-up
• Supports open-drain outputs with dedicated interrupt functionality

Applications

• Embedded systems requiring additional digital I/O lines
• IoT devices with limited microcontroller pins
• Industrial control interfaces using SMBus or I2C buses

Procurement Notes

Verify the specific suffix 'F' corresponds to the required tape-and-reel packaging configuration when ordering. Confirm that the 24-QFN footprint matches your PCB design constraints. Ensure the selected component meets the specified -40°C to +85°C operating temperature range for your intended environment. Cross-reference the datasheet revision date to confirm compatibility with your system requirements.

Selection Notes

Select this component when a low-voltage, 16-bit I/O expansion solution is needed for space-constrained designs. The integrated pull-ups simplify circuit design by reducing external component count. Consider the 400 kHz speed limit if high-frequency bus communication is critical. Verify that the open-drain output type aligns with the logic levels of the host controller.

Part Context

This part belongs to MaxLinear's family of I/O expanders designed for efficient bus utilization. It complements other interface solutions by providing simple digital extension without complex protocol overhead. The QFN package offers a compact form factor suitable for modern portable and industrial electronics where board space is at a premium.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official MaxLinear resources for direct cross-reference data before considering alternative components.

FAQ

Does the XRA1207IL24-F include external pull-up resistors?

No, it features internal 100K ohm pull-up resistors on each I/O pin after power-up.

What is the maximum clock frequency supported?

The device supports a clock frequency of up to 400 kHz.