XR16C850IM-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16C850IM-F is a single-channel Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It features a 128-byte transmit and receive FIFO buffer with counters to optimize data loading and unloading from the controlling CPU. The device supports data rates up to 2.25 Mb/s and operates within a supply voltage range of 2.97 V to 5.5 V. Typical operating supply currents are 2.7 mA and 4 mA. It is housed in a TQFP-48 surface-mount package and functions within an industrial temperature range of 0°C to +70°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrated 128-byte dual FIFO buffers with counters for efficient CPU data management
• Compatible with Intel bus and PC COM port interfaces
• Supports standard UART protocols including RS-232 and RS-485

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Intel bus system interfacing
• PC COM port implementations
• Industrial communication systems requiring moderate data throughput

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate packaging variations. Ensure the supplier provides valid traceability documentation to mitigate risks associated with counterfeit electronic components.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with substantial buffering is required for CPU offloading. The 128-byte FIFO reduces processor interrupt frequency compared to smaller buffer alternatives. Verify that the TQFP-48 package footprint aligns with the target PCB design constraints and that the 0°C to +70°C operating range meets environmental requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the MaxLinear VLIO UART series, designed for versatile serial communication needs. It serves as a bridge between parallel CPU buses and asynchronous serial lines. The device integrates standard modem control signals and timing functions, providing a complete solution for legacy and modern serial interface applications without external logic support.