XR16V654ILTR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V654ILTR-F is a quad universal asynchronous receiver-transmitter (UART) interface integrated circuit manufactured by MaxLinear. It features four independent channels, each equipped with a 64-byte transmit and receive FIFO buffer to enhance data throughput and system efficiency. The device supports high-speed serial communication with a maximum data rate of 16 Mb/s. It operates within a supply voltage range of 2.25 V to 3.6 V, compatible with standard 2.5 V and 3.3 V logic levels. The component is housed in a 48-lead QFN package and is designed for surface-mount installation. It functions reliably across an industrial temperature range from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad-channel architecture providing four independent UART interfaces within a single compact package.
• Integrated 64-byte FIFO buffers on both transmit and receive paths to minimize CPU intervention and handle burst data traffic.
• Supports multiple bus protocols including Intel and Motorola modes for flexible system integration.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring multiple serial communication ports.
• Embedded control units in automotive electronics.
• Telecommunications equipment utilizing RS-232 or RS-485 interfaces.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'LTR' indicates tape-and-reel packaging when sourcing replacements. Confirm that the 3.6 V maximum supply voltage aligns with the target system's power rails. Check for end-of-life notifications as this series may have discontinuation notices from the manufacturer. Ensure compatibility with existing PCB footprints for the 48-lead QFN form factor during procurement planning.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires four distinct UART connections without consuming excessive board space. It is suitable for applications needing high data rates up to 16 Mb/s with low power consumption. Consider the 64-byte FIFO depth if the host processor cannot service interrupts frequently enough for smaller buffers. Verify that the operating voltage range matches the system's available power supplies.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16V654 family of quad UART controllers. It shares functional similarities with other members like the XR16V654IL-F but differs in packaging configuration. The ILTR variant specifically denotes the leadless QFN package with reel packaging, distinguishing it from tray-packaged equivalents. It serves as a serial-to-parallel bridge for microcontroller-based systems.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct substitutes include the XR16V654IL-F, which offers identical electrical specifications but utilizes a tray package instead of tape-and-reel. Other family members such as the XR16V654DIV-F provide similar functionality in different packages. Verify pinout compatibility before swapping between package variants.