XR16M564IV64-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16M564IV64-F is a quad Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It features four independent channels with 32-byte transmit and receive FIFOs per channel, supporting data rates up to 16 Mb/s. The device operates on a single supply voltage ranging from 1.62 V to 3.63 V, compatible with 1.8 V, 2.5 V, and 3.3 V logic levels. Packaged in a 64-pin LQFP, it supports Intel and Motorola bus interfaces and includes an internal oscillator.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels with dedicated 32-byte FIFO buffers for each transmitter and receiver to enhance throughput and reduce CPU overhead.
• Supports high-speed serial communication with data rates reaching 16 Mb/s while maintaining compatibility with standard voltage logic levels.
• Incorporates an internal oscillator and timer/counter functionality, eliminating the need for external clock components in many applications.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial communication ports
• Embedded computing platforms utilizing Intel or Motorola bus architectures
• Telecommunications equipment needing high-speed asynchronous data transfer

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

This component is classified as obsolete or end-of-life by the manufacturer. Availability is restricted, and sourcing may require checking secondary market distributors or verifying specific stock conditions. Engineers should plan for potential supply chain disruptions and consider long-term availability risks when integrating this part into new designs.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this part when a compact solution for four serial ports is required within low-voltage systems. It is suitable for designs prioritizing integration over discrete UART solutions. Verify that the 32-byte FIFO depth meets buffer requirements and that the LQFP-64 package fits the PCB layout constraints compared to higher-capacity alternatives.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

Part of the MaxLinear VLIO UART family, designed for versatile serial interface needs. It bridges microcontrollers or processors to peripheral devices via standard asynchronous protocols. The series emphasizes low power consumption and broad voltage compatibility for diverse embedded environments.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

As an obsolete component, direct replacements are limited. Evaluate newer MaxLinear models such as the XR16M554D series for similar quad-channel functionality, though FIFO depths and pinouts may differ. Ensure any substitute matches the electrical specifications and interface timing requirements of the original design.

UARTs (Universal Asynchronous Receiver Transmitter) FAQ

What is the maximum data rate supported by the XR16M564IV64-F?

The device supports data rates up to 16 Mb/s across its four channels.

Does this IC support both Intel and Motorola bus interfaces?

Yes, the XR16M564IV64-F is compatible with both Intel and Motorola bus interface standards.