XR16V798IQTR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V798IQTR-F is a dual universal asynchronous receiver/transmitter (DUART) integrated circuit manufactured by MaxLinear. It integrates two independent UART channels with full modem control signals, including RTS, CTS, DSR, and DCD. The device supports data rates up to 3 Mbps when operating from a 3.3 V supply. It features an internal baud rate generator capable of generating standard baud rates from a system clock input. The component includes a 1-byte transmit and receive FIFO for each channel to enhance throughput efficiency. It operates within an industrial temperature range of -40°C to +85°C and is housed in a 48-lead TQFP package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with complete hardware flow control
• Internal baud rate generator supporting standard communication speeds
• Integrated 1-byte FIFOs for both transmission and reception on each channel

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring serial communication
• Embedded control units with multiple serial interfaces
• Telecommunications equipment utilizing RS-232 or RS-485 protocols

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature grade (-40°C to +85°C) and 'QTR' denotes the tape and reel packaging format. Confirm that the 48-lead TQFP footprint matches the target PCB design. Ensure the system voltage aligns with the 3.3 V nominal operation requirements specified for this variant.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when two isolated serial ports are required within a single package. Compare against single-channel alternatives if only one interface is needed to optimize board space. Verify that the maximum baud rate of 3 Mbps meets the application's data throughput requirements. Check compatibility with existing microcontroller GPIO configurations for interrupt and control line handling.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16V79x family of DUARTs designed for high-reliability serial communication. It serves as a bridge between parallel processor buses and serial peripheral devices. The integration of two UARTs reduces component count compared to using discrete controllers. It is commonly used in legacy interface adaptation and modern embedded designs requiring robust serial connectivity.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-to-pin replacements may include other XR16V79x variants with different package options or temperature ranges. Verify electrical compatibility regarding supply voltage and signal levels before substitution. Cross-reference with similar DUART offerings from other manufacturers if supply constraints exist.