SC16C554IB64,157

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C554IB64,157 is a quad Universal Asynchronous Receiver/Transmitter (QUART) manufactured by NXP Semiconductors. It features four independent UART channels with 16-byte transmit and receive FIFOs. The device supports data rates up to 5 Mbit/s at 5 V and 3.3 V, and up to 3 Mbit/s at 2.5 V. It operates within an industrial temperature range and includes an infrared encoder/decoder. The component utilizes a 64-lead LQFP package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Supports Intel 16-mode and Motorola 68-mode bus interfaces
• Includes integrated Infrared (IrDA) encoder and decoder
• Provides automatic hardware or software flow control
• Features prioritized interrupt system controls

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Telecommunication network routers
• Ethernet network routers
• Cellular data devices
• Factory automation and process controls

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and environmental compliance. Ensure the procurement channel provides valid traceability for industrial-grade components. Confirm that the received units match the specified LQFP64 form factor and pin configuration before integration into the design.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a multi-channel serial interface is required alongside IrDA capabilities. It serves as a direct replacement for legacy ST16C554 and TL16C554 designs. Consider the 64-pin LQFP package constraints regarding the INTSEL pin bonding compared to the PLCC68 variant if continuous interrupts are necessary without external logic.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC16C554/554D family of QUARTs from NXP. It is pin-compatible with industry-standard parts like the ST16C554 and TL16C554. The IB64 designation specifically identifies the LQFP64 plastic low profile quad flat package version operating in the standard 16 mode interface.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C554IB64 is functionally equivalent to the ST16C554 and TL16C554A. For applications requiring the 68-mode interface or different packaging, consider the SC16C554DIA68 (PLCC68) or SC16C554IB80 (LQFP80). Verify register compatibility when migrating from older 16C550-based designs.