SC16C650BIB48,151

Overview

The SC16C650BIB48,151 is a single-channel Universal Asynchronous Receiver/Transmitter (UART) manufactured by NXP Semiconductors. It operates at supply voltages of 2.5 V, 3.3 V, and 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. It includes an integrated infrared encoder/decoder compliant with IrDA version 1.0, automatic hardware/software flow control, and DMA signaling via RXRDY and TXRDY pins. The component is housed in a 48-lead LQFP package.

Feature Summary

• Provides 32-byte transmit and receive FIFOs to reduce external CPU bandwidth requirements.
• Supports automatic hardware flow control using RTS and CTS signals or software flow control with programmable Xon/Xoff characters.
• Integrates an infrared encoder and decoder supporting IrDA version 1.0 specifications.
• Offers internal loop-back capabilities for on-board diagnostics and fault isolation.

Applications

• Serial data communications in industrial control systems
• High-speed modem interfaces requiring fast data processing
• Shared network environments needing efficient multi-channel data throughput

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a single UART channel with enhanced FIFO depth is required for 5 V, 3.3 V, or 2.5 V logic systems. Ensure the application benefits from the integrated IrDA capability or requires independent transmit/receive trigger levels. Confirm that the LQFP48 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the SC16C650B family, which provides upward compatibility with standard 16C450 register sets while adding advanced features like larger FIFOs and IrDA support. It is pin-compatible with industry-standard devices such as the ST16C650A and TL16C450/550, facilitating direct replacements in existing designs without schematic changes.

Replacement Considerations

The SC16C650BIB48 is functionally equivalent to the SC16C650BIB48,157 and SC16C650BIB48,128 variants, differing primarily in packaging quantities or reel specifications rather than electrical performance. Verify pinout compatibility if substituting with older generation parts like the SC16C550, noting the increased FIFO capacity.