SC16C2550IB48,151

Overview

The SC16C2550IB48,151 is a dual Universal Asynchronous Receiver/Transmitter (UART) manufactured by NXP USA Inc. It features 16-byte transmit and receive FIFOs with an integrated infrared (IrDA) encoder/decoder. The device supports data rates up to 5 Mbits/s at 5 V and 3.3 V, and 3 Mbits/s at 2.5 V. It operates within the industrial temperature range and is housed in a 48-lead LQFP package.

Feature Summary

• Dual independent UART channels with 16-byte FIFOs for both transmission and reception
• Integrated IrDA encoder and decoder for infrared communication
• Supports 5 V, 3.3 V, and 2.5 V power supply operation
• Programmable baud rate generator supporting rates up to 5 Mbits/s
• Hardware and software flow control capabilities including Xon/Xoff

Applications

• High-speed modem interfaces
• Shared network environments requiring fast data processing
• Infrared communication systems

Procurement Notes

Verify the specific ordering suffix ',151' against official NXP documentation to confirm tape and reel packaging or specific revision status. Ensure the component matches the LQFP48 package dimensions and pinout defined in the datasheet. Confirm RoHS compliance and industrial temperature rating requirements for the target application environment.

Selection Notes

Select this component when dual serial ports with high throughput are required. The 16-byte FIFOs significantly reduce CPU interrupt overhead compared to standard 16C550 devices. Ensure the system clock frequency supports the desired baud rate generation. Verify voltage compatibility with the host processor logic levels.

Part Context

This part belongs to the SC16C2550 family of dual UARTs. It is functionally compatible with the ST16C2550 and upward compatible with the 16C2450. The IB48 suffix denotes the LQFP48 plastic low profile quad flat package variant. It serves as an enhanced successor to single-channel UARTs by providing two independent channels on one chip.

Replacement Considerations

Pin-compatible replacements include the ST16C2550. For single-channel applications, the SC16C550 may be considered if only one port is needed. Verify that any substitute maintains the 16-byte FIFO depth and IrDA support if those features are critical.