XR16V554DIVTR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V554DIVTR-F is a quad universal asynchronous receiver/transmitter (UART) interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 2.25 V to 3.6 V and supports data rates up to 4 Mb/s. Each channel is equipped with independent 16-byte transmit and receive FIFOs, providing enhanced buffering capabilities for serial communication applications. The device features an internal oscillator and timer/counter, along with automatic flow control and modem control signals. It is housed in a 64-pin LQFP package and is designed for surface-mount installation. The component functions reliably across an industrial temperature range from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with dedicated 16-byte TX and RX FIFOs per channel
• Supports Intel bus compatibility and standard RS-232 signaling
• Integrated internal oscillator and timer/counter functionality
• Automatic hardware flow control and full modem control signal support

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring multi-channel serial communication
• Embedded controllers needing buffered UART interfaces
• Telecommunications equipment utilizing RS-232 protocols
• Data acquisition systems with moderate baud rate requirements

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing this part number. Confirm the manufacturer designation as MaxLinear or its predecessor Exar Corporation, as corporate transitions may affect documentation sources. Ensure the operating voltage range aligns with the system's power supply rails before integration. Check for moisture sensitivity level markings on the reel to determine storage and handling requirements during assembly.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART channels are required within a single footprint. The 16-byte FIFO depth is suitable for applications with moderate data throughput that benefit from reduced CPU interrupt frequency. Verify that the 2.25 V to 3.6 V supply range matches the target logic levels. Consider the LQFP-64 package dimensions against available PCB space constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16V554D series of quad UARTs. It shares functional similarities with the XR16V554DIV but differs in packaging format, with the TR suffix denoting tape-and-reel delivery. It is distinct from the XR16C854D series, which offers larger 128-byte FIFOs and higher voltage tolerance. The device represents a mid-range solution in the VLIO UART product line.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The XR16V554DIV serves as a tray-packaged alternative with identical electrical specifications. For higher performance needs, the XR16C854DIV provides increased FIFO capacity. Cross-reference pinouts carefully when substituting with other quad UART devices from different manufacturers.