XR16M2650IM48

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16M2650IM48 is a dual UART interface IC manufactured by MaxLinear (formerly Exar/Sipex). It features two independent DUART channels with 32-byte FIFOs per channel. The device supports data rates up to 16Mbps and operates on a single supply voltage ranging from 1.62V to 3.63V. It integrates an internal oscillator, IrDA encoder/decoder, automatic flow control, modem control, and false start bit detection. The component is housed in a 48-TQFP package measuring 7x7 mm.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with integrated 32-byte FIFO buffers for each port
• Supports RS232 and RS422 communication protocols with high-speed data transmission capabilities
• Includes built-in IrDA encoding and decoding functionality alongside automatic hardware flow control
• Operates within a low-voltage range of 1.62V to 3.63V using a single power supply

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring serial communication interfaces
• Embedded devices needing multiple UART connections with FIFO buffering
• Infrared data association (IrDA) enabled portable electronics
• Modem control applications utilizing standard RS232 or RS422 signaling

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation carefully, as this component has been produced under Sipex, Exar, and MaxLinear brands due to corporate acquisitions. Confirm the specific datasheet revision matches your design requirements. Ensure the 48-TQFP package dimensions align with your PCB footprint specifications. Check for RoHS compliance status if required by your manufacturing standards.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual serial ports with hardware FIFOs are necessary to reduce CPU overhead. The wide voltage range suits battery-powered or low-voltage logic systems. Verify that the 16Mbps maximum data rate meets your application's throughput needs. Consider the TQFP package size constraints during mechanical design integration.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16M2650 series of dual UART controllers. Originally developed by Sipex and later acquired by Exar, the product line was subsequently integrated into MaxLinear's portfolio. The series is known for providing robust serial communication solutions with integrated FIFOs, replacing older discrete UART implementations in modern embedded designs.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-to-pin replacements may include other dual UART ICs with similar FIFO depths and voltage ranges. Verify protocol support compatibility, specifically regarding IrDA and flow control signals. Package dimensions must match exactly to ensure physical interchangeability without PCB redesign.