XRA1403IL24TR-F

Overview

The XRA1403IL24TR-F is a 16-bit General Purpose Input/Output (GPIO) expander manufactured by MaxLinear. It utilizes an SPI serial interface for communication, supporting clock frequencies up to 26 MHz. The device operates within a supply voltage range of 1.65 V to 3.6 V and features open-drain outputs capable of sourcing 160 mA. It includes programmable internal pull-up resistors, polarity inversion, and interrupt generation capabilities on rising or falling edges. The component is housed in a 24-pin QFN package and is rated for operation between -40°C and +85°C.

Feature Summary

• Provides 16 individually configurable GPIO pins with support for high, low, or three-state output modes.
• Features programmable interrupt logic that triggers on rising edge, falling edge, or both input transitions.
• Integrates internal pull-up resistors on all I/O pins with individual enable/disable control and polarity inversion options.

Applications

• Systems requiring expansion of digital input/output lines via SPI bus
• Remote device monitoring where power removal from peripherals necessitates three-state GPIO configurations
• Industrial control interfaces requiring interrupt-driven input polling

Procurement Notes

Verify the specific suffix TR-F indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check for End-of-Life notifications as discontinuation affects long-term availability. Ensure the supplier provides valid traceability for moisture sensitivity level handling requirements during assembly.

Selection Notes

Select this component when an SPI interface is preferred over I2C for GPIO expansion. Verify that the system voltage falls within the 1.65 V to 3.6 V operating range. Ensure the host controller supports the required SPI clock speed of up to 26 MHz. Consider the 24-pin QFN footprint constraints during PCB layout design.

Part Context

This part belongs to the XRA1403 series of 16-bit SPI GPIO expanders. It shares functional similarities with other members like the XRA1405 but differs in package type and specific pinout configurations. The series is designed for applications needing multiple digital I/Os controlled by a single serial interface.

Replacement Considerations

Direct substitutes include the XRA1403IL24-F in tray packaging. Other compatible devices in the same family may offer similar functionality but require verification of pin compatibility and electrical specifications against the original datasheet.