TL16C550CPT

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CPT is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments, housed in a 48-pin Plastic Thin Quad Flatpack (PT) package. It supports 3.3-V and 5-V operation with data rates up to 1 Mbaud using a 16-MHz clock. The device features 16-byte transmit and receive FIFOs with selectable autoflow control to reduce CPU overhead. It includes programmable baud rate generation, full modem control signals, and independent interrupt capabilities for efficient serial interface management.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrated 16-byte transmit and receive FIFOs with selectable autoflow control logic
• Programmable baud rate generator supporting divisors from 1 to 65535
• Full modem control capability including CTS, RTS, DSR, DTR, RI, and DCD signals
• Independent interrupt system for receiver errors, data availability, transmitter status, and modem changes

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Multiprotocol UART designs requiring RS-232/485/422 interfaces
• Embedded systems utilizing DSP or microcontroller-based serial communication
• Industrial equipment needing reliable asynchronous data transfer with flow control

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'PT' confirms the 48-pin plastic thin quad flatpack package type. Confirm the operating temperature range matches application requirements, as standard variants typically cover 0°C to 70°C while industrial versions extend to -40°C to 85°C. Check current production status and lead times through authorized distributors.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with hardware autoflow control is required. Ensure the host system supports the 3.3-V or 5-V supply voltage specified. Verify that the 48-pin PT package fits the PCB layout constraints. Consider the TL16C550CI variant if an extended industrial temperature range is necessary.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C550C is a functional upgrade of the TL16C550B and serves as a successor to the TL16C450. It maintains register compatibility with the TL16C450 upon power-up but adds advanced FIFO and autoflow features. This lineage ensures software portability while providing enhanced performance for modern embedded applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550CI offers identical functionality with an extended temperature range (-40°C to 85°C). Other packages such as FN (PLCC-44) or PFB (TQFP-48) provide alternative mounting options with compatible pinouts.