SC16C554DIA68,529

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C554DIA68,529 is a quad Universal Asynchronous Receiver and Transmitter (QUART) manufactured by NXP USA Inc. It features 16-byte transmit and receive FIFOs with selectable trigger levels and supports data rates up to 5 Mbit/s at 5 V and 3.3 V, or 3 Mbit/s at 2.5 V. The device operates within an industrial temperature range and includes an infrared encoder/decoder. It offers pin compatibility with industry-standard ST16C554 and TL16C554 devices, supporting both Intel and Motorola bus interfaces via the PLCC68 package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Supports dual interface modes for Intel and Motorola microprocessor buses
• Includes integrated infrared encoder and decoder functionality
• Provides automatic hardware and software flow control mechanisms
• Features prioritized interrupt system controls and internal loop-back diagnostics

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• High-speed serial data communications in shared network environments
• Interfaces requiring infrared communication protocols
• Systems utilizing high-speed modems requiring fast data processing

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify component authenticity through official NXP channels or authorized distributors. Confirm the specific ordering suffix matches the required package and environmental specifications. Review the latest product data sheet for any updates regarding manufacturing status or recommended design-in practices before finalizing procurement plans.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a quad UART solution with integrated FIFOs and infrared capabilities is required. Ensure the target system voltage aligns with the supported 5 V, 3.3 V, or 2.5 V operating ranges. Verify that the PLCC68 package fits the available PCB footprint and that the interface mode selection pin configuration meets the microprocessor bus requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC16C554/554D family of quad UARTs. It serves as an enhanced successor to earlier single-channel UARTs, offering increased throughput through larger FIFO buffers. The device maintains backward compatibility with standard 16C554 pinouts while adding advanced features like IrDA support and flexible flow control options.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C554DIA68 is pin compatible with the ST16C554 and TL16C554. Substitution requires verifying functional equivalence in FIFO depth and maximum data rate specifications. Ensure the replacement device supports the same voltage levels and interface modes required by the existing system design.