TL16C550DIPTRG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C550DIPTRG4 is a single-channel asynchronous communications element (ACE) manufactured by Texas Instruments. It operates within a voltage range of 2.25 V to 5.5 V and supports data rates up to 1.5 Mbaud with a 24-MHz clock at 5 V, or up to 3 Mbaud at 3.3 V in specific packages. The device features 16-byte transmit and receive FIFOs with error status bits. It includes programmable auto-RTS and auto-CTS autoflow control, false-start bit detection, and line break generation. The component is housed in a 48-pin LQFP package and is designed for surface-mount installation.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Autoflow Control: Programmable auto-RTS and auto-CTS functions automatically manage serial data flow using RTS output and CTS input signals to reduce software overhead and eliminate overrun errors.
• FIFO Buffering: Integrated 16-byte receiver and transmitter FIFOs store characters along with three additional error status bits per byte for the receiver, relieving the CPU of excessive management tasks.
• Modem Control: Complete modem control capability including DTR, RTS, CTS, DSR, RI, and DCD signals, allowing direct drive of RJ11 cables when equipment is on the same power drop.
• Interrupt System: Fully prioritized interrupt system tailored to minimize software management, supporting independent control of transmit, receive, line status, and data set interrupts.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial-to-parallel and parallel-to-serial data conversion in embedded systems
• Communication links requiring DMA controller signaling via TXRDY and RXRDY
• Systems needing reduced CPU overhead through hardware-managed autoflow control

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the ordering suffix 'G4' indicates lead-free and RoHS compliance as per Texas Instruments standards. Confirm the 'PT' suffix corresponds to the 48-LQFP package type. Ensure the supply voltage matches the 2.25-V to 5.5-V operational range required for the specific application environment.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with 16-byte FIFOs is required. It serves as a speed and voltage upgrade to the TL16C550C while maintaining functional equivalence to the TL16C450. Consider the 48-pin LQFP package constraints and ensure the host system supports the bidirectional data bus interface.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C550D is a functional upgrade of the TL16C550C and an equivalent of the TL16C450. It offers higher speed capabilities and multi-voltage operation (5 V, 3.3 V, 2.5 V). The device maintains register compatibility with legacy software while providing enhanced performance through increased baud rates and integrated autoflow control mechanisms.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C550DI is functionally equivalent but may differ in temperature rating or package variant. The TL16C550C is a lower-speed predecessor. Verify pinout compatibility if substituting with other members of the TL16C550 family.