TL16CP554APM

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16CP554APM 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 FIFO buffer to enhance data throughput and reduce processor overhead. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports data rates up to 1 Mb/s. It is housed in a 64-pin LQFP package suitable for surface-mount applications. The component functions as an asynchronous communication element, performing serial-to-parallel conversion on received data characters.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels with dedicated 16-byte FIFOs for efficient data handling
• Performs serial-to-parallel conversion on incoming data characters
• Supports high-speed asynchronous communication with data rates up to 1 Mb/s
• Designed for surface-mount installation in compact electronic systems

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial communication ports
• Embedded computer interfaces for data acquisition
• Telecommunications equipment utilizing asynchronous protocols
• Automotive electronics with multi-channel serial requirements

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

This component is officially designated as End-of-Life by the manufacturer. Production has been scheduled for obsolescence and discontinuation. Buyers must verify current availability through authorized distributors, as stock levels are finite. Engineering teams should initiate design-in reviews for replacement parts immediately to ensure long-term supply chain stability and avoid production interruptions due to unavailability.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this part only if legacy compatibility with the TL16C554 family is required. Verify that the system design accommodates the 64-pin LQFP footprint and 5 V logic levels. Since the device is discontinued, alternative solutions with pin-compatible or functionally equivalent modern UART controllers should be evaluated. Ensure that the application does not require active manufacturing support or extended lifecycle guarantees from the original equipment manufacturer.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16CP554APM belongs to the TL16C554 series of Quad UARTs with FIFOs. It serves as a specialized interface IC for managing serial data streams in complex embedded environments. The 'P' suffix indicates the plastic LQFP package type, while 'M' denotes the temperature range and tape/reel or tray packaging variant depending on specific distributor listings. It is part of Texas Instruments' established portfolio of communication interface components.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Public confirmed substitute part numbers: TL16C554APNG4, TL16C554FNR, TL16C554APNR.