TL16C550CFNR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CFNR is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments, housed in a 44-pin PLCC surface-mount package. It supports data rates up to 1 Mbaud with a maximum clock rate of 16 MHz. The device features 16-byte transmit and receive FIFOs with error status bits. It operates on supply voltages ranging from 3 V to 5.25 V, with typical current consumption of 10 mA at 5 V. The operating temperature range extends from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Programmable autoflow control using auto-RTS and auto-CTS signals to manage serial data flow and prevent buffer overruns.
• Integrated 16-byte FIFOs for both transmission and reception to reduce CPU software overhead.
• Compatible register set with the legacy TL16C450, allowing direct software migration.
• Supports standard asynchronous communication formats including configurable character length, parity, and stop bits.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Multiprotocol UART designs requiring RS-232, RS-485, or RS-422 interfaces.
• Embedded systems utilizing DSPs or microcontrollers for serial communication management.
• Industrial equipment requiring reliable asynchronous data transfer with hardware flow control.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'FN' confirms the 44-pin PLCC package and reel packaging configuration. Confirm the component grade matches the required industrial temperature range (-40°C to +85°C). Ensure the ordering quantity aligns with the manufacturer's standard reel size specifications.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with hardware autoflow control is required. It serves as a functional upgrade to the TL16C550B and maintains backward compatibility with TL16C450 software. Consider the PLCC package availability if through-hole alternatives are not suitable for the PCB layout.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C550C family of asynchronous communications elements. It functions as an evolution of the TL16C550B, offering enhanced FIFO capabilities and autoflow control while maintaining pin and register compatibility with earlier generations like the TL16C450.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550DIPTG4 offers similar functionality but utilizes a 48-pin LQFP package. Verify pinout differences and register mapping before substitution. The TL16C550CIPTRG4 provides equivalent electrical performance in a different surface-mount package format.