SC16C550BIB48,151

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C550BIB48,151 is a Universal Asynchronous Receiver and Transmitter (UART) in an LQFP48 package. It supports serial 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 features 16-byte transmit and receive FIFOs with programmable trigger levels. It operates within the industrial temperature range of -40 °C to +85 °C and includes auto-RTS/CTS flow control, DMA signaling via TXRDY/RXRDY pins, and internal loopback diagnostics.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Pin-compatible with industry-standard ST16C550, TL16C550, and PC16C550 devices.
• Provides 16-byte transmit and receive FIFOs for enhanced throughput.
• Supports automatic hardware flow control through auto-RTS and auto-CTS modes.
• Enables DMA mode data transfers using dedicated ready signals.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• High-speed modem interfaces requiring fast data processing.
• Shared network environments with multi-channel communication needs.
• Industrial systems requiring robust serial data conversion and error handling.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the ordering suffix IB48 corresponds to the LQFP48 plastic low profile quad flat package with 48 leads. Confirm the trailing ,151 indicates the specific reel or tape-and-reel packaging configuration as defined by NXP USA Inc. documentation. Ensure the component meets the specified industrial temperature range requirements for your application environment.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this model when pin compatibility with legacy 16C550 designs is required alongside improved FIFO performance. Choose the LQFP48 package if surface-mount assembly with a 7 mm x 7 mm body size is necessary. Verify that the target system voltage aligns with the 5 V, 3.3 V, or 2.5 V operational capabilities to ensure correct signal integrity and power consumption.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the SC16C550B family of UARTs, which are upward solutions to the 16C450 standard. The family provides increased performance through larger FIFO buffers compared to predecessors. The IB48 variant specifically denotes the LQFP48 package option within the broader product line available in PLCC44, DIP40, and HVQFN32 formats.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-compatible replacements include the ST16C550, TL16C550, and PC16C550. These devices share functional equivalence after reset but may differ in maximum operating speeds or FIFO depths. Verify electrical characteristics and package dimensions before substituting to ensure board layout compatibility.