TL16C554PN

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C554PN is a quad universal asynchronous receiver/transmitter (UART) integrated circuit manufactured by Texas Instruments. It integrates four independent UART channels, each equipped with a 16-byte FIFO to enhance data throughput and reduce processor overhead. The device operates within a supply voltage range of 3V to 5.25V and supports maximum clock frequencies up to 16 MHz. It utilizes an 80-pin Low-Profile Quad Flat Package (LQFP) with dimensions of 12mm x 12mm. The component is designed for industrial temperature ranges, specifically 0°C to 70°C, and features standard asynchronous communication protocols.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels with dedicated 16-byte transmit and receive FIFOs per channel.
• Supports automatic flow control and modem control signals for reliable serial communication management.
• Includes false start bit detection capabilities to improve signal integrity in noisy environments.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring multiple serial communication ports.
• Embedded controllers needing high-throughput asynchronous data transfer.
• Communication gateways managing concurrent serial device connections.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature grade. Ensure the ordering part number matches the required 80-LQFP configuration and industrial operating range. Cross-reference manufacturer datasheets to validate RoHS compliance and lead-free status before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART interfaces are required in a single package. Consider the 16-byte FIFO depth for applications demanding reduced CPU intervention during high-speed data transfers. Verify that the 80-pin LQFP footprint fits the target PCB layout constraints and that the 3V to 5.25V supply range aligns with the system power architecture.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The TL16C554PN belongs to the TL16C554 family of quad UART devices from Texas Instruments. It serves as a multi-channel serial interface solution, distinct from single or dual UART variants. The PN suffix typically denotes the plastic quad flat package variant. Related parts include the TL16C554APNR and TL16C554AIPNR, which share similar functional characteristics but may differ in packaging or environmental ratings.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Publicly confirmed substitute part numbers include TL16C554AIPN and TL16C554APN. Verify pin compatibility and electrical specifications before substitution.