TL16C552AFN

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C552AFN is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) manufactured by Texas Instruments. It integrates two independent UARTs within a single PLCC-68 package, providing 16-byte transmit and receive FIFOs for each channel to enhance data throughput. The device supports baud rates up to 1 MBd and operates on a typical 5 V supply voltage with a range of 4.75 V to 5.25 V. Designed for surface-mount installation, it functions reliably across an industrial temperature range from -40 °C to +85 °C. The component measures 24.23 mm x 24.23 mm x 4.06 mm.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with integrated 16-byte FIFOs
• Supports high-speed asynchronous communication up to 1 MBd
• Industrial-grade temperature rating for robust environmental operation

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring serial communication
• Embedded computer interfaces
• Telecommunications equipment

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'FN' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Check for End-of-Life notifications or discontinuance alerts, as legacy UART components may have limited production availability. Ensure the supplier provides traceable documentation matching the Texas Instruments part number.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual-channel solution is required in a PLCC package. Compare against the TL16C552AIFN if an industrial temperature range (-40°C to +85°C) is mandatory, as commercial variants may differ. Verify that the system power supply aligns with the 5V requirement and that the PCB footprint matches the 68-pin PLCC dimensions.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C552A series of UART interface ICs. It serves as a parallel-to-serial converter for microcontroller-based systems. The device is functionally compatible with standard 16550 UART architectures but includes enhanced FIFO buffers. It is distinct from quad-channel variants like the TL16C554 or single-channel versions.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C552AIFN is a verified alternative within the same series offering identical functionality. Other potential substitutes include the ST16C552 or NXP SC16C552, provided pinouts and electrical characteristics are cross-referenced with official datasheets.