TL16C752PT

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C752PT is a dual universal asynchronous receiver/transmitter (UART) manufactured by Texas Instruments, housed in a 48-pin LQFP package. It supports data rates up to 3.125 Mbps and operates on a single 3.3-V power supply. The device integrates two independent UART channels, each equipped with a 64-byte transmit FIFO and a 64-byte receive FIFO that includes error flags. Key specifications include programmable baud rate generation via an internal prescaler and divisor, software and hardware flow control capabilities, and a fully prioritized interrupt system. The component is pin-compatible with the ST16C2550.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture with independent 64-byte FIFOs for both transmission and reception
• Integrated automatic hardware flow control using auto-RTS and auto-CTS signals
• Configurable software flow control utilizing programmable Xon/Xoff characters
• Programmable trigger levels for DMA signaling and interrupt generation

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring multi-port serial connectivity
• Embedded controllers needing expansion of available UART interfaces
• Modem interface circuits requiring full modem control signal handling
• Data acquisition systems utilizing DMA transfers for high-speed serial data

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix 'PT' corresponds to the 48-pin LQFP package variant when sourcing components. Confirm that the required operating voltage aligns with the specified 3.3-V supply range. Ensure that the application environment remains within the standard commercial temperature limits defined in the datasheet. Cross-reference the manufacturer's latest documentation to confirm current production status and availability constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires two independent serial ports with significant buffering to reduce processor overhead. It is suitable for applications demanding high baud rates up to 3.125 Mbps. Consider this part if the system architecture benefits from hardware-based flow control to prevent data loss. Verify that the host microcontroller supports the necessary address decoding and interrupt handling mechanisms.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the TL16C75x family of UARTs from Texas Instruments, which are designed as drop-in replacements for legacy devices like the ST16C2550. The PT suffix specifically denotes the 48-lead Low Profile Quad Flat Package (LQFP). This series provides enhanced features over standard 16550-compatible UARTs, including larger FIFOs and advanced flow control logic.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C752 is explicitly documented as pin-compatible with the ST16C2550. Designers replacing older UARTs should verify that the target system can support the enhanced feature register configurations and 3.3-V logic levels.