TL16C554AFNR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C554AFNR is a quad universal asynchronous receiver/transmitter (UART) integrated circuit manufactured by Texas Instruments. It features four independent UART channels, each equipped with a 16-byte first-in, first-out (FIFO) buffer to enhance data throughput and reduce processor overhead. The device operates on a single 5 V supply and supports asynchronous communication protocols with a maximum clock frequency of 16 MHz. It is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package, specifically identified as QCCJ LDCC68, with physical dimensions of 24.23 mm in length. The component is designed for industrial temperature ranges spanning from 0°C to 70°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels within a single package
• Includes 16-byte FIFO buffers per channel to manage data flow efficiently
• Supports standard asynchronous serial communication protocols
• Operates reliably at a 5 V supply voltage

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial interfaces
• Embedded computing platforms needing high-speed serial data transfer
• Communication gateways managing concurrent serial connections

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix AFNR against the manufacturer's official datasheet to confirm the 68-PLCC package and 0 to 70°C operating range. Ensure compatibility with existing board layouts for the LDCC68 footprint. Confirm that the 5 V supply requirement aligns with the system power architecture before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four distinct UART channels are required in a design constrained by space or pin count. The 16-byte FIFOs make it suitable for applications with bursty data traffic. Verify that the host system provides a compatible 5 V logic level and that the 16 MHz clock limit meets the baud rate requirements of the connected peripherals.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C554 series belongs to Texas Instruments' family of asynchronous communications elements. The TL16C554AFNR specifically denotes the variant with a 68-PLCC package and industrial temperature rating. It serves as a multi-channel solution compared to single-channel UARTs, reducing component count in designs requiring extensive serial connectivity.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for direct pin-compatible replacements within the same package type. Verify if alternative part numbers offer extended temperature ranges or different packaging options while maintaining the quad UART and FIFO specifications.