SC16C550IB48,151

Overview

The SC16C550IB48,151 is a Universal Asynchronous Receiver/Transmitter (UART) manufactured by NXP USA Inc. It features 16-byte transmit and receive FIFOs with error flags, supporting data rates up to 3 Mbit/s at 5 V, 2 Mbit/s at 3.3 V, and 1 Mbit/s at 2.5 V. The device operates within an industrial temperature range of -40 °C to +85 °C and includes an infrared (IrDA) encoder/decoder. It utilizes an LQFP48 package and provides automatic hardware/software flow control, DMA mode transfers, and standard modem interface signals.

Feature Summary

• Integrated 16-byte transmit and receive FIFOs reduce external CPU bandwidth requirements
• Supports automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control mechanisms
• Includes built-in infrared (IrDA) encoder and decoder functionality
• Provides internal loop-back capability for on-board diagnostic testing

Applications

• Serial data communication systems requiring high-speed asynchronous transfer
• Industrial environments necessitating operation across wide temperature ranges
• Applications utilizing infrared wireless communication protocols
• Systems integrating standard modem control interfaces

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm current availability status as components may be subject to lifecycle changes. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

Selection Notes

Select this component when pin compatibility with industry-standard ST16C550 or TL16C550 devices is required. Choose this UART for designs needing integrated IrDA support without additional external logic. Consider this part for applications demanding reduced host processor overhead through hardware-managed FIFO operations.

Part Context

This component belongs to the SC16C550 family of UARTs produced by Philips Semiconductors, now NXP. It serves as an enhanced successor to the 16C450 architecture, adding significant buffering and flow control capabilities while maintaining register-level compatibility with legacy software implementations.

Replacement Considerations

The SC16C550IB48 is pin-compatible with the ST16C550, TL16C550, and PC16C550. Verify that substitute parts maintain identical register sets and electrical characteristics to ensure seamless integration into existing designs.