TL16C550CIFN

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CIFN is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments. It features 16-byte transmit and receive FIFOs with error status bits, supporting data rates up to 1 Mbaud with a 16-MHz clock. The device operates on 3.3-V or 5-V supplies within a commercial temperature range of 0°C to 70°C. It utilizes a 44-pin PLCC package for surface-mount installation. Key specifications include a maximum supply voltage of 5.25 V, minimum of 3 V, and typical operating current of 10 mA.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Programmable autoflow control using auto-RTS and auto-CTS modes to manage serial data flow and prevent overrun errors.
• Compatible register set with the legacy TL16C450, allowing direct software migration without code changes.
• Independent interrupt system for transmitter, receiver, line status, and modem status events.
• Supports DMA signaling via TXRDY and RXRDY pins for efficient CPU data transfer.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring reliable serial data exchange.
• Embedded controllers needing high-speed UART interfaces with hardware flow control.
• Legacy system upgrades replacing TL16C450 components with enhanced FIFO capabilities.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'FN' corresponds to the 44-pin PLCC package and commercial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the required 3.3-V or 5-V power domains as specified in the electrical characteristics.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with 16-byte buffering is required. Choose the FN package variant for PLCC footprint compatibility. Consider the CI version if an extended industrial temperature range (-40°C to 85°C) is necessary for the application environment.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C550C family of asynchronous communications elements. It serves as a functional upgrade to the TL16C550B and TL16C450, offering integrated FIFOs and autoflow control while maintaining pin and register compatibility with earlier generations.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550CI is the industrial temperature rated equivalent. The TL16C550DIPT is a different package variant (LQFP-48). Verify pinout and thermal requirements before substituting with other UART ICs from different manufacturers.