100325PC

Overview

The Fairchild Semiconductor 100325PC is a unidirectional level translator integrated circuit housed in a 24-pin Plastic Dual In-Line Package (PDIP). It belongs to the 100K series of logic devices and operates with ECL-compatible inputs. The component features configurable outputs, allowing flexibility in signal directionality and interface matching. Designed for through-hole mounting, it supports standard DIP-24 footprints with a 0.400-inch body width. The device functions as a bidirectional translator despite its unidirectional classification in some listings, facilitating voltage level shifting between different logic families in mixed-voltage digital systems.

Feature Summary

• Configurable output polarity for flexible signal routing
• ECL input compatibility for high-speed logic interfacing
• Unidirectional level translation capability
• Through-hole PDIP24 package for prototyping

Applications

• Mixed-voltage digital system interconnects
• ECL to other logic family level shifting
• Prototyping boards requiring DIP packaging
• Signal direction control in data buses

Procurement Notes

Verify the exact datasheet revision when sourcing, as Fairchild Semiconductor assets were acquired by ON Semiconductor. Confirm that the PDIP24 package matches your PCB footprint requirements. Ensure the supplier provides genuine components from authorized channels to avoid counterfeit levels translators. Check RoHS compliance status if required for specific regulatory environments, noting historical non-compliance in some database entries.

Selection Notes

Select this component when a through-hole solution is mandatory for prototyping or low-volume production. It is suitable for applications requiring ECL input compatibility with configurable output states. Consider the PDIP24 form factor constraints against available board space. Verify that the unidirectional nature meets the specific signal flow requirements of the target circuit design without needing additional external buffering.

Part Context

The 100K series represents a family of high-speed ECL logic devices produced by Fairchild Semiconductor. These components were widely used in telecommunications and computing infrastructure before the transition to lower voltage CMOS technologies. Fairchild Semiconductor was a major independent chipmaker until its acquisition by ON Semiconductor, which continues to support legacy part numbers through its distribution channels.

Replacement Considerations

Direct pin-to-pin replacements may be limited due to the specific ECL characteristics and configurable output features. Check ON Semiconductor catalogs for updated equivalents within the 100K series. Verify electrical compatibility regarding supply voltages and output drive capabilities before substituting.