TL16C550CPFB

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CPFB is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments, housed in a 48-pin Thin Quad Flat Package (TQFP). It supports both 3.3-V and 5-V nominal supply voltages with an operating temperature range of 0°C to 70°C. The device features 16-byte transmit and receive FIFOs, programmable baud rate generation up to 1 Mbaud using a 16-MHz clock, and integrated autoflow control via auto-RTS and auto-CTS modes.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrated autoflow control mechanism utilizing auto-RTS and auto-CTS functions to manage serial data flow and minimize CPU intervention.
• Dual voltage operation capability supporting standard 5-V and low-voltage 3.3-V power supplies for flexible system integration.
• Programmable baud rate generator capable of dividing reference clocks to achieve data rates up to 1 Mbaud.
• Hardware DMA signaling support through dedicated TXRDY and RXRDY outputs for efficient data transfer management.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Multiprotocol UART designs requiring RS-232, RS-485, or RS-422 interface compatibility
• Embedded systems utilizing DSP controllers such as TMS320VC33 for serial communication tasks
• Industrial equipment requiring reliable asynchronous data exchange with minimal software overhead

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'PFB' corresponds to the 48-pin TQFP package variant when sourcing. Confirm that the required operating temperature range aligns with the commercial grade specifications (0°C to 70°C), as industrial variants may carry different suffixes. Ensure supply chain availability matches project timelines given potential lifecycle changes.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with hardware autoflow control is required. Compare against the TL16C550DIPTG4 if an industrial temperature range (-40°C to 85°C) is necessary instead of the commercial range. Consider the TL16C550CFN if a PLCC-44 package is preferred over the TQFP form factor for existing board layouts.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C550C family, which serves as a functional upgrade to the TL16C550B and TL16C450. It maintains register compatibility with the TL16C450 upon reset while offering enhanced FIFO capabilities. The PFB suffix specifically denotes the 48-pin thin quad flat package configuration used in surface-mount applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550DIPTG4 offers identical functionality but operates within an extended industrial temperature range (-40°C to 85°C). The TL16C550CFN provides the same electrical performance in a PLCC-44 package. Verify pinout compatibility and thermal requirements before substituting these alternatives.