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The Fairchild Semiconductor 100351QC is a low-power hex D-type flip-flop logic integrated circuit. It features six independent D-type flip-flops with positive-edge triggering, designed for digital control and signal routing applications. The device operates within a temperature range of 0°C to 85°C and is housed in a 28-pin PLCC (J-Lead) package. As an obsolete component, it represents legacy digital logic technology from the manufacturer's historical product line.
Verify component authenticity carefully as this part is officially End-of-Life (EOL). Sourcing may involve surplus or recycled inventory rather than new manufacturing runs. Confirm pin compatibility and physical condition if replacing existing equipment. Request detailed test reports or original packaging documentation to ensure reliability for critical replacements.
Select this component only for maintenance of existing Fairchild-based designs where specific legacy timing characteristics are required. Evaluate alternative modern hex D-type flip-flops from current manufacturers if designing new systems, as supply chain stability for EOL parts is limited. Ensure voltage levels and interface requirements match the original system specifications.
This IC belongs to the family of low-power hex D-type flip-flops produced by Fairchild Semiconductor. It serves as a fundamental building block for sequential logic circuits. The manufacturer has since transitioned to onsemi branding, marking this part as a historical reference for older digital electronics architectures.