TL16C550CIPTRG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CIPTRG4 is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.25 V and supports data rates up to 1 Mb/s with a maximum clock rate of 16 MHz. The device features 16-byte transmit and receive FIFOs, each storing three additional error status bits per byte. It functions in an industrial temperature range from -40°C to +85°C and is housed in a 48-pin LQFP package.

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.
• Functional upgrade over the TL16C450 with independent receiver and transmitter interrupts for optimized CPU management.
• Supports standard asynchronous communication formats including configurable character lengths, parity, and stop bits.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial-to-parallel and parallel-to-serial conversion between CPUs and peripheral devices.
• Interfacing DSP systems, such as TMS320VC5402, with personal computers via UART.
• Modem control applications requiring direct drive capabilities for RJ11 cables.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the component against official Texas Instruments datasheets to confirm pinout compatibility and electrical specifications. Ensure that the ordering suffix matches the required package type and temperature grade. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before finalizing procurement decisions.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with integrated FIFO buffering is required for asynchronous communication. It serves as a functional replacement for legacy TL16C450 designs while offering enhanced autoflow control capabilities. Consider the 48-pin LQFP package constraints and verify that the system power supply aligns with the specified 3.3 V or 5 V operating ranges.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This device belongs to the TL16C550C series of asynchronous communications elements. It represents a functional evolution of the TL16C550B and TL16C450 families, maintaining register compatibility upon reset while introducing advanced FIFO-based data handling and autoflow control mechanisms for improved system efficiency.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550CI is functionally equivalent but may differ in packaging. Verify that substitute parts maintain identical pin configurations and electrical characteristics to ensure seamless integration without hardware modifications.

UARTs (Universal Asynchronous Receiver Transmitter) FAQ

How does the autoflow control feature operate?

Autoflow control combines auto-CTS and auto-RTS. Auto-CTS prevents transmission if the CTS input is inactive, while auto-RTS deasserts the RTS signal based on receiver FIFO trigger levels to prevent data overrun.

What is the maximum baud rate supported?

The device supports baud generation up to 1 Mbit/s when driven by a 16-MHz input clock.

Does the device support DMA operations?

Yes, the TXRDY and RXRDY pins provide signaling for DMA controllers, supporting both single-transfer and multi-transfer DMA modes depending on the FIFO control register settings.