SC16C750BIBS,151

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C750BIBS,151 is a single-channel Universal Asynchronous Receiver and Transmitter (UART) manufactured by NXP Semiconductors. It operates at supply voltages of 2.5 V, 3.3 V, or 5 V with an industrial temperature range from -40 °C to +85 °C. The device 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. It features 64-byte transmit and receive FIFOs, automatic hardware flow control, and DMA signaling via RXRDY and TXRDY pins. The component is housed in an HVQFN32 package (SOT617-1) and maintains pin compatibility with the TL16C750 while offering functional equivalence to the 16C450 upon reset.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Single full-duplex UART channel with 64-byte transmit and receive FIFOs for high-speed data processing
• Automatic hardware flow control using RTS output and CTS input signals to manage buffer overflow
• Programmable baud rate generator supporting internal crystal or external clock inputs up to 48 MHz
• Internal loopback capability for on-board diagnostics and communications link fault isolation

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• High-speed modem interfaces requiring fast data processing times
• Shared network environments demanding maximum data throughput performance
• Multi-channel systems utilizing FIFO trigger interrupts and automatic flow control
• Industrial applications operating within the specified voltage and temperature ranges

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix IBS corresponds to the HVQFN32 plastic thermal enhanced very thin quad flat package with no leads. Confirm that the component meets the industrial temperature range requirements of -40 °C to +85 °C. Ensure the supply voltage matches the system design for 2.5 V, 3.3 V, or 5 V operation as specified in the datasheet.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with large FIFO buffers is required to reduce CPU overhead. Consider the HVQFN32 package constraints regarding board space and thermal dissipation. Verify that the target application utilizes standard asynchronous protocols compatible with the 16C450 register set for software portability.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC16C750B family of UARTs designed to replace legacy 16C450/550 devices. It provides upward compatibility by integrating 64-byte FIFOs instead of the smaller buffers found in previous generations. The device is intended for applications needing improved performance in networking and modem environments without requiring significant software changes.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C750B is functionally equivalent to the 16C450 after reset and pin-compatible with the TL16C750. Direct replacements include other variants within the SC16C750B family such as SC16C750BIA44 or SC16C750BIB64, provided the package type matches the PCB footprint requirements.