TL16C451FNR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C451FNR is a single-channel Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.75V to 5.25V and supports data rates up to 256 kb/s. The device features an internal baud rate generator, modem control signals, and printer port compatibility. It is housed in a 68-pin PLCC package with J-leads, measuring 24.23mm x 24.23mm. The component is classified as obsolete and no longer in production.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Supports asynchronous serial communication protocols with integrated baud rate generation capabilities.
• Includes hardware flow control and modem status signal management for reliable data transmission.
• Provides parallel interface compatibility suitable for legacy peripheral connections.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Legacy industrial equipment requiring serial communication interfaces
• Point-of-sale systems utilizing older UART standards
• Embedded control systems with parallel port dependencies

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

This component is officially discontinued by the manufacturer. Availability is restricted to surplus stock from third-party distributors or secondary market sources. Buyers should verify part authenticity and storage history carefully due to the long time since last manufacture. No new units are produced by Texas Instruments.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Designers seeking active alternatives should consider newer UART families with higher data rates and FIFO buffers. The TL16C451 lacks advanced error handling features found in modern equivalents. Evaluate pin compatibility and voltage levels when migrating to replacement components to ensure system stability.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C451 belongs to the Texas Instruments TL16C45x series of asynchronous communication elements. This family was designed for applications requiring robust serial data transfer with minimal external logic. The FNR suffix indicates a specific tape-and-reel packaging variant within the PLCC form factor.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Texas Instruments recommends the TL16C750EPFBR as a manufacturer-recommended replacement. This alternative offers enhanced performance characteristics while maintaining functional compatibility for many legacy designs.