TL16C550CPTG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550CPTG4 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 at 3.3 V or 5 V nominal supply voltages within a commercial temperature range of 0°C to 70°C. It utilizes a 48-pin Plastic Thin Quad Flatpack (PT) package. Key specifications include programmable baud rate generation, independent interrupt control, and 3-state TTL-compatible outputs for bidirectional data bus interfacing.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Autoflow control capability using programmable Auto-RTS and Auto-CTS modes to manage serial data flow and prevent buffer overruns.
• Integrated 16-byte FIFOs for both transmission and reception to reduce CPU software overhead during high-speed data transfers.
• Complete modem control interface supporting standard signals including CTS, RTS, DSR, DTR, RI, and DCD for direct peripheral management.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring reliable serial data exchange.
• Embedded controllers needing hardware-assisted UART functionality.
• Modem interfaces and telecommunications equipment.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific PT package variant against current availability as component lifecycles change. Confirm that the commercial temperature grade meets system requirements. Ensure voltage levels align with the target 3.3 V or 5 V logic domains before integration.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with hardware autoflow control is required. Compare against the TL16C550CI if an extended industrial temperature range is necessary. Verify pin compatibility with existing TL16C450 designs if migrating legacy software.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C550C family, serving as a functional upgrade to the TL16C550B and TL16C450. It maintains register compatibility with the TL16C450 upon reset while adding advanced FIFO and autoflow features. The PT designation indicates a 48-pin plastic thin quad flatpack housing.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550CI offers identical functionality but supports an extended -40°C to 85°C operating temperature range. Other variants in the series include DIP and LQFP packages for different mounting requirements.