XR16M2550IM48

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16M2550IM48 is a quad universal asynchronous receiver/transmitter (UART) integrated circuit manufactured by MaxLinear, formerly Sipex. It integrates four independent UART channels within a single package, supporting data rates up to 3 Mbps. The device operates on a single 3.3V power supply and includes an internal oscillator for clock generation. It features RS-232 compliant drivers and receivers, with ESD protection rated at ±15 kV HBM. The component utilizes a 48-pin QFN package and supports standard serial communication protocols.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels in a compact footprint
• Supports high-speed serial communication up to 3 Mbps
• Includes internal oscillator eliminating external crystal requirements
• Provides RS-232 compatible signal levels with robust ESD protection

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation control systems requiring multiple serial ports
• Embedded computing platforms needing expanded UART connectivity
• Telecommunications equipment utilizing serial data transmission
• Medical devices requiring reliable isolated serial communication interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation carefully as the part was originally produced under the Sipex brand before acquisition by MaxLinear. Confirm the specific suffix 'IM48' matches the required 48-pin QFN package variant. Check for RoHS compliance documentation if environmental regulations apply to your assembly process. Ensure the source provides valid traceability records given the brand transition history.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires four distinct UART interfaces without consuming excessive board space. Compare against dual-channel alternatives if fewer ports are sufficient to reduce cost. Verify that the 3.3V operating voltage aligns with the system logic levels. Consider the internal oscillator accuracy if precise baud rate timing is critical for the application environment.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the XR16M2xxx series of multi-port UARTs. It serves as a successor to earlier Sipex quad UART designs, maintaining pin compatibility while updating manufacturing processes under MaxLinear. The IM48 suffix denotes the specific 48-lead thin profile quad flat no-lead package used for surface mount assembly.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct replacements include the XR16M2550IM48T variant which shares identical electrical specifications but differs in tape-and-reel packaging. Other quad UART ICs from different manufacturers may require schematic and layout modifications due to pinout differences.