SC16C650BIA44,512

Overview

The SC16C650BIA44,512 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. It includes an integrated infrared (IrDA) encoder/decoder compliant with version 1.0, programmable auto-flow control, and DMA signaling capabilities. The component is housed in a PLCC44 package.

Feature Summary

• Integrated IrDA encoder/decoder for infrared communication
• 32-byte transmit and receive FIFOs with selectable trigger levels
• Automatic hardware and software flow control mechanisms
• Pin compatible with industry-standard 16C450 and 16C550 devices

Applications

• Serial data communications in industrial environments
• Infrared data link implementations requiring IrDA compliance
• High-speed modem interfaces and shared network systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape/reel specifications. Confirm that the PLCC44 variant matches the target footprint requirements. Check current product status as legacy components may have limited availability or end-of-life designations.

Selection Notes

Select this UART when pin compatibility with existing 16C450 designs is required alongside enhanced FIFO performance. Ensure the system supports the necessary voltage levels for the chosen operating mode. Verify that the external clock frequency meets the baud rate generation requirements for the desired data throughput.

Part Context

This component belongs to the SC16C650B family of UARTs, which provides enhanced features over standard 16C450 devices. The family includes variants in DIP40, LQFP48, and HVQFN32 packages. The SC16C650B series is designed to replace older UARTs while offering improved data handling through larger FIFO buffers and integrated flow control logic.

Replacement Considerations

Direct pin-compatible replacements include other SC16C650B variants in different packages such as SC16C650BIN40 or SC16C650BIB48. Cross-compatibility exists with ST16C650A devices. Verify register mapping and interrupt behavior when substituting with similar UART families.