100371DC

Overview

The Fairchild Semiconductor 100371DC is a CMOS logic device belonging to the 100K series, functioning as a 3 x 4:1 multiplexer. It is housed in a 24-lead Ceramic Dual In-Line Package (CDIP/CERDIP) with a 0.400-inch width. The component supports single-supply voltage operation within a range of -4.2V to 5.7V and operates reliably across an industrial temperature range of 0°C to 85°C. Designed for through-hole mounting, this integrated circuit provides signal routing capabilities suitable for embedded electronics applications requiring robust packaging.

Feature Summary

• Functions as a 3-input by 4-output multiplexer for signal selection
• Utilizes CMOS technology from the 100K series for low power consumption
• Features a durable ceramic dual in-line package for high reliability
• Supports single-supply voltage operation

Applications

• Embedded electronics signal routing
• Industrial control systems
• Data acquisition systems

Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor's logic division has undergone corporate restructuring and brand transitions to onsemi. Confirm that the specific part number corresponds to the original Fairchild production run if legacy compatibility is required. Ensure the package type matches the 24-CDIP specification exactly. Check for any obsolescence notices or lifecycle status updates from authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when a 3x4 multiplexer function is required in a through-hole design environment. The ceramic package offers superior thermal stability and hermetic sealing compared to plastic alternatives, making it suitable for harsh environments. Ensure the system supply voltage remains within the specified -4.2V to 5.7V range to prevent oxide breakdown. Consider the physical size constraints of the 24-lead CDIP footprint during PCB layout.

Part Context

This device is part of the broader 100K series of CMOS logic components produced by Fairchild Semiconductor. The series includes various gates, flip-flops, and multiplexers designed for general-purpose digital applications. The 100371DC specifically addresses signal switching needs within this portfolio, offering a standardized interface for integration into larger digital systems.

Replacement Considerations

Check for equivalent parts from onsemi, which succeeded Fairchild's semiconductor business. Verify pin-to-pin compatibility with other 3x4 multiplexers in the 100K series or compatible families. Ensure replacement packages match the 24-CDIP form factor for direct board substitution.