100325QI

Overview

The Fairchild Semiconductor 100325QI is a hex ECL-to-TTL translator designed to convert F100K logic levels to TTL logic levels. It features differential inputs for each circuit, allowing flexible usage. The device operates within a temperature range of -40°C to +85°C and is housed in a 28-pin PLCC package.

Feature Summary

• Hex configuration providing six independent translation channels
• Differential input architecture for signal integrity
• Direct conversion from F100K ECL levels to standard TTL levels

Applications

• Interface circuits between ECL and TTL logic families
• System level shifting in mixed-logic environments
• Digital signal processing interfaces requiring voltage translation

Procurement Notes

Verify the specific suffix 'QI' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the component meets RoHS compliance standards if required by your assembly process. Cross-reference with official Fairchild or onsemi documentation for any obsolescence notices.

Selection Notes

Select this component when interfacing F100K series devices with TTL logic. Consider the 28-pin PLCC package constraints for PCB layout. Evaluate propagation delay specifications from the official datasheet to ensure timing compatibility with your system clock speeds.

Part Context

This part belongs to the 100K series of high-speed logic components manufactured by Fairchild Semiconductor. It serves as a bridge between different logic families, specifically addressing the voltage level mismatch between ECL and TTL standards in legacy and specialized digital systems.

Replacement Considerations

Check for direct equivalents such as the 100325QC or other hex translators from the same family. Verify pin compatibility and logical function before substituting. Consult the manufacturer's replacement guide for validated cross-references.