XR16C864CQTR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16C864CQTR-F is a quad enhanced Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It features four independent UART channels, each equipped with a 128-byte transmit and receive FIFO buffer to minimize CPU intervention. The device supports data rates up to 2 Mb/s and operates within a supply voltage range of 2.97 V to 5.5 V, compatible with both 3.3 V and 5 V systems. It is housed in a QFP-100 surface-mount package and functions within an operating temperature range of 0°C to +70°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad channel architecture with 128-byte TX and RX FIFOs per channel
• Support for Intel and Motorola bus protocols
• Dual voltage operation for 3.3 V and 5 V systems

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication gateways requiring multiple serial links
• Embedded systems needing high-throughput asynchronous data transfer
• Multi-port serial expansion modules

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging rather than tray. Confirm the component status as Not Recommended for New Design (NRND) before finalizing procurement plans. Ensure compatibility with existing board layouts for the QFP-100 footprint. Check for moisture sensitivity level requirements during storage and handling.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART interfaces with deep buffering are required. Compare against the XR16C854 series if fewer channels or different packaging is acceptable. Verify that the 2 Mb/s maximum data rate meets system timing requirements. Ensure the 0°C to +70°C commercial temperature range suits the operational environment.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16C864 family of VLIO UARTs from MaxLinear. It shares functional similarities with the XR16C854CV-F but differs in package type and pinout configuration. The XR16C864 series is designed for applications requiring multiple serial ports with reduced processor overhead through large FIFO buffers.