SC16C2550IN40,112

Overview

The SC16C2550IN40,112 is a dual Universal Asynchronous Receiver/Transmitter (UART) manufactured by NXP USA Inc., housed in a DIP40 plastic package. 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 includes independent programmable baud rate generators, four selectable receive FIFO interrupt trigger levels, and automatic software/hardware flow control.

Feature Summary

• Dual UART channels with 16-byte FIFOs for reduced CPU bandwidth requirements
• Integrated IrDA encoder/decoder for infrared communication support
• Supports 5 V, 3.3 V, and 2.5 V operation with industrial temperature range
• Pin and functionally compatible with 16C2450 and software compatible with INS8250

Applications

• High-speed modem interfaces
• Shared network environments requiring fast data processing
• Portable appliances and telecommunication networks
• Factory automation and process controls

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a dual-channel UART solution with integrated IrDA capability is required. Ensure the design accommodates the DIP40 package dimensions and utilizes the available 16-byte FIFOs to optimize CPU interrupt servicing. Confirm that the system clock frequency supports the desired baud rate generation capabilities up to 5 Mbits/s.

Part Context

The SC16C2550 series represents an enhanced evolution of the standard 16C2450 UART, adding significant buffering and infrared capabilities. The IN40 variant specifically denotes the dual in-line package configuration, providing a robust option for through-hole mounting in industrial and legacy systems where higher data throughput and IrDA compliance are necessary.

Replacement Considerations

The SC16C2550 is pin-compatible with the ST16C2550. It is also functionally equivalent to the 16C2450 upon power-up. Designers should verify software compatibility with INS8250 and SC16C550 standards if migrating from older UART designs.