SC16C650BIBS,151

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C650BIBS,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 within an industrial temperature range of -40 °C to +85 °C. The device features 32-byte transmit and receive FIFOs with error flags and supports 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 includes an infrared encoder/decoder supporting IrDA version 1.0 up to 115.2 kbit/s, automatic hardware/software flow control, and DMA mode transfers via RXRDY and TXRDY signals. The component is housed in an HVQFN32 package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Provides 32-byte transmit and receive FIFOs with programmable trigger levels to reduce CPU bandwidth requirements.
• Supports automatic hardware flow control using RTS and CTS signals and software flow control with programmable Xon/Xoff characters.
• Includes built-in infrared encoder and decoder compatible with IrDA version 1.0 specifications.
• Enables DMA mode data transfers through dedicated ready signals and selectable FIFO interrupt trigger levels.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial data communications requiring high throughput and low CPU overhead
• Systems utilizing infrared communication protocols
• Industrial control environments operating across wide voltage ranges

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental rating. Confirm that the HVQFN32 package variant matches the required footprint for the target design. Ensure compatibility with existing 16C450 software drivers if migrating from legacy components. Check for any discontinued status updates prior to finalizing procurement plans.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with enhanced FIFO depth is required for serial data conversion. It is suitable for applications needing support for multiple supply voltages including 2.5 V, 3.3 V, and 5 V. Consider this part for designs requiring integrated IrDA capabilities or automated flow control mechanisms without external logic.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The SC16C650B series represents an enhancement over standard 16C450 and 16C550 UARTs by providing larger 32-byte FIFOs. It maintains pin and software compatibility with industry-standard devices while adding features like IrDA support and advanced flow control. The IB suffix indicates the LQFP48 package, while the BS suffix denotes the HVQFN32 package.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C650B is functionally equivalent to the 16C450 after reset. It offers upward compatibility with 16C550 functionality. Direct pin-compatible replacements include other variants within the SC16C650B family such as SC16C650BIA44 or SC16C650BIN40, depending on the required package style.