SC16C650BIBS,128

Overview

The SC16C650BIBS,128 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, 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 includes an 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 an HVQFN32 package.

Feature Summary

• Supports IrDA version 1.0 encoding and decoding for infrared communication
• Provides independent programmable trigger levels for both transmit and receive FIFOs
• Enables automatic hardware flow control using RTS and CTS signals
• Offers internal loop-back capability for on-board diagnostics

Applications

• Serial data communications requiring infrared interface support
• High-speed modem connections and shared network environments
• Systems utilizing direct memory access for efficient data transfer

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance. Confirm that the HVQFN32 variant matches the required thermal and mechanical specifications for the target application design.

Selection Notes

Select this component when pin compatibility with standard 16C450/550 devices is required alongside enhanced FIFO depth. Ensure the system clock frequency supports the desired baud rate generation, particularly for high-speed operations exceeding 1 Mbit/s.

Part Context

This UART belongs to the SC16C650B family, which provides upward compatibility with legacy 16C450 software while adding 32-byte FIFOs. It serves as a bridge between standard asynchronous interfaces and modern high-throughput requirements without altering existing register sets.

Replacement Considerations

Public confirmed substitute part numbers: SC16C650BIB48, SC16C650BIN40, SC16C650BIA44.