TL16C550CPTR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CPTR is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments. It features 16-byte transmit and receive FIFOs with autoflow control capabilities, supporting data rates up to 1 Mbaud with a 16-MHz clock input. The device operates on 3.3-V or 5-V supplies, drawing approximately 10 mA at 5 V. It is housed in a 48-pin LQFP package and supports an operating temperature range of 0°C to 70°C for the standard grade.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Programmable autoflow control using auto-RTS and auto-CTS modes to manage serial data flow and reduce CPU overhead.
• Compatible with existing TL16C450 software through identical register sets after reset.
• Supports DMA signaling via TXRDY and RXRDY pins for efficient data transfer.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Multiprotocol UART designs integrating with DSPs or microcontrollers
• RS-232/485/422 interface implementations
• Embedded systems requiring high-efficiency serial communication

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'P' indicates the PT/LQFP package type and 'TR' denotes tape-and-reel packaging. Confirm the absence of the 'I' suffix ensures the commercial temperature range (0°C to 70°C) rather than industrial (-40°C to 85°C). Check current availability status as this component may be subject to end-of-life notices.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this part when a single UART channel with 16-byte FIFOs is required. Ensure the system voltage matches the 3.3-V or 5-V operation limits. Verify that the 48-pin LQFP footprint fits the PCB layout constraints. Consider the TL16C550CI if an extended temperature range is necessary.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the TL16C550C family, which serves as a functional upgrade to the TL16C550B and TL16C450. It maintains backward compatibility while adding autoflow control and FIFO buffering. The 'CPTR' designation specifies the commercial temperature grade, LQFP package, and reel packaging format.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550DIPTG4 is a similar asynchronous communications element but typically operates at higher baud rates and may have different thermal characteristics. Verify pinout compatibility and register mapping before substitution.