XR16V564DIV

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V564DIV is a quad universal asynchronous receiver/transmitter (UART) integrated circuit manufactured by Sipex. It integrates four independent UART channels within a single package, supporting data rates up to 2 MBps. The device operates with a CMOS interface and utilizes a 64-pin Low-Profile Quad Flat Package (LQFP) measuring 10 x 10 mm. It features on-chip 64-byte FIFOs for each channel to enhance throughput and reduce CPU overhead. The component supports standard asynchronous communication protocols and includes low-power operating modes suitable for serial I/O controller applications.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels with dedicated 64-byte FIFOs per channel
• Supports high-speed asynchronous serial communication up to 2 MBps
• Operates with CMOS logic levels and includes low-power mode functionality
• Housed in a compact 64-pin LQFP surface-mount package

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial I/O controllers requiring multiple independent communication ports
• Industrial automation systems with multi-channel data acquisition needs
• Embedded systems utilizing RS-232 or RS-485 interfaces via external transceivers

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation carefully, as this part number has been associated with Exar Corporation and MaxLinear Inc. due to corporate acquisitions. Confirm the specific datasheet revision and pinout compatibility before integration. Ensure the ordering suffix matches the required tape-and-reel or tray packaging configuration for your assembly line.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires four distinct UART interfaces without consuming excessive PCB area. Compare against single-channel UARTs if only one port is needed to optimize cost. Verify that the 64-pin LQFP footprint fits within the mechanical constraints of the target enclosure. Check voltage level compatibility with the connected microcontroller or processor bus.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the family of quad UART controllers designed for high-density serial communication. It serves as a bridge between parallel processor buses and serial peripheral devices. The integration of four channels allows for simplified system architecture compared to using discrete UART chips, reducing component count and board space requirements in complex embedded designs.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to potential variations in electrical characteristics and pinouts among different manufacturers offering similar quad UARTs, direct replacement requires careful cross-referencing of specific datasheets.