SC16C554DIA68,518

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C554DIA68,518 is a quad Universal Asynchronous Receiver and Transmitter (QUART) manufactured by NXP USA Inc. It operates at 5 V, 3.3 V, and 2.5 V with data rates up to 5 Mbit/s at 5 V and 3.3 V, and 3 Mbit/s at 2.5 V. The device features 16-byte transmit and receive FIFOs, automatic hardware or software flow control, and an infrared encoder/decoder. It supports Intel (16 mode) and Motorola (68 mode) interfaces via the 16/68 pin. The component is housed in a PLCC68 package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with 16-byte transmit and receive FIFOs
• Support for Intel and Motorola bus interface modes
• Integrated infrared (IrDA) encoder and decoder
• Automatic hardware and software flow control capabilities

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial data communications systems
• High-speed modem applications
• Shared network environments requiring fast data processing
• Infrared communication interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm that the '518' suffix aligns with the intended variant specifications. Ensure compatibility with the required voltage levels and interface modes before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a quad UART with integrated FIFOs and IrDA support is required. Consider the PLCC68 package constraints and verify the necessary interface mode (Intel or Motorola). Evaluate power supply requirements across the 2.5 V, 3.3 V, and 5 V operating ranges.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The SC16C554DIA68 belongs to the SC16C554/554D family of quad UARTs. It is pin-compatible with industry-standard devices such as the ST16C554 and TL16C554. The device provides upward compatibility with the 16C454 while adding enhanced features like larger FIFOs and IrDA support.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Pin-compatible replacements include the ST16C554 and TL16C554. Verify functional equivalence and register compatibility when substituting these components.