XR20M1280IL40-F

Overview

The XR20M1280IL40-F is a single-channel I2C/SPI to UART interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 1.62 V to 3.63 V, supporting standard logic levels of 1.8 V, 2.5 V, and 3.3 V. The device features a data rate capability of 24 Mb/s and includes an internal 128-byte FIFO buffer for efficient data handling. It is housed in a QFN-40 package suitable for surface mount technology. The component functions across an industrial temperature range from -40°C to +85°C and draws a typical operating current of 2.5 mA.

Feature Summary

• Integrates I2C or SPI host interfaces with UART serial communication capabilities
• Includes built-in level shifters for flexible voltage domain interfacing
• Provides four general-purpose input/output (GPIO) pins for system control

Applications

• Embedded systems requiring serial port expansion via I2C or SPI
• Industrial automation controllers needing robust UART connectivity
• IoT devices utilizing low-power serial communication protocols

Procurement Notes

Verify the specific suffix and package configuration against the manufacturer's latest datasheet before ordering. Confirm availability status as distribution channels may report varying stock levels. Ensure compatibility with existing board designs regarding pinout and thermal requirements. Check for any recent product change notices that might affect long-term supply or specifications.

Selection Notes

Select this component when a single high-speed UART channel is required alongside I2C or SPI connectivity. The 128-byte FIFO depth supports higher throughput applications compared to smaller buffer alternatives. Consider the QFN-40 package size constraints during PCB layout planning. Verify that the host controller supports the necessary clock speeds for reliable I2C or SPI communication at the desired baud rates.

Part Context

This part belongs to the XR20M1280 series of UART interface ICs from MaxLinear. It shares functional similarities with other members like the XR20M1280IL24-F but differs in package type and pin count. The series is designed for applications requiring compact solutions with integrated level shifting capabilities.