SC16C550BIB48,128

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C550BIB48,128 is a single-channel Universal Asynchronous Receiver and Transmitter (UART) manufactured by NXP Semiconductors. It operates within an industrial temperature range of -40°C to +85°C and supports supply voltages of 2.5 V, 3.3 V, and 5 V. The device 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. It utilizes an LQFP-48 package and includes programmable auto-RTS/CTS flow control, four selectable receive FIFO interrupt trigger levels, and standard modem interface signals.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Pin-compatible with industry-standard ST16C550, TL16C550, and PC16C550 devices, ensuring functional equivalence to the 16C450 upon power-up.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial data communications requiring parallel-to-serial and serial-to-parallel conversion.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm that the specific ordering suffix matches the required package type and voltage specifications. Ensure compliance with relevant RoHS directives and environmental standards for the intended deployment environment.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when legacy 16C450 software compatibility is required alongside enhanced FIFO performance. Consider the LQFP48 package constraints and verify that the target system supports the necessary 5V tolerant input logic levels for reliable operation across the specified voltage ranges.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This UART belongs to the SC16C550B family, designed as an upward solution to the 16C450. It provides increased throughput via larger FIFOs and reduced CPU bandwidth requirements. The device is fabricated using advanced CMOS technology to meet low power consumption and high-speed processing needs in shared network environments.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

SC16C550BIA44

UARTs (Universal Asynchronous Receiver Transmitter) FAQ

How does the SC16C550B handle hardware flow control?

It supports automatic hardware flow control through programmable auto-RTS and auto-CTS modes. Auto-CTS controls the transmitter based on the CTS input state, while auto-RTS manages data transmission based on receiver FIFO contents and threshold settings.

What are the available receive FIFO interrupt trigger levels?

The device offers four selectable receive FIFO interrupt trigger levels: 1, 4, 8, or 14 bytes. These levels determine when the interrupt pin activates to signal the CPU to read data.