TL16C552FN

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C552FN is a dual Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by Texas Instruments. It features two independent UART channels, each equipped with a 16-byte FIFO buffer to enhance data throughput and reduce CPU overhead. The device supports data rates up to 1 Mb/s and operates within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 68-pin PLCC package suitable for surface-mount installation. The component functions across an industrial temperature range from 0°C to +70°C and draws a maximum operating supply current of 50 mA.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture providing two independent asynchronous communication interfaces
• Integrated 16-byte FIFOs per channel to minimize processor intervention during high-speed data transfer
• Supports baud rates up to 1 Mb/s for efficient serial data transmission

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial communication ports
• Embedded computer systems needing reliable asynchronous data exchange
• Telecommunications equipment utilizing standard UART protocols

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'FN' corresponds to the 68-PLCC package and commercial temperature grade (0°C to +70°C). Confirm RoHS compliance status through official documentation as manufacturing practices may evolve. Check for End-of-Life notifications or discontinuance alerts from Texas Instruments prior to finalizing procurement plans.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when two separate UART interfaces are required within a single footprint. Ensure the system design accommodates the 68-pin PLCC package dimensions and soldering requirements. Verify that the 5V logic levels align with the connected microcontroller or peripheral devices without additional level shifting.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C552 family of dual UARTs. It serves as a parallel port variant within the broader TL16C55x series, which includes single, dual, and quad UART options. The TL16C552FN specifically targets applications needing dual serial connectivity with FIFO buffering in a compact surface-mount form factor.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Consider the TL16C552AIFNR for extended temperature ranges (-40°C to +85°C) while maintaining the same pinout and functionality. Evaluate the TL16C550CFN if only a single UART channel is sufficient, offering a smaller 44-pin PLCC package.