74F676SCX

Overview

The 74F676SCX is a parallel-in serial-out shift register belonging to the F/FAST logic series. It features a 16-bit architecture with right-shift direction capability and true outputs. The device utilizes TTL-compatible inputs and is housed in a 28-pin plastic quad flat pack (PQCC28) package. Key operational characteristics include hold mode functionality and chip select capabilities that disable both serial and parallel operations. The component supports an operating temperature range up to 70°C and exhibits a propagation delay of 13.5 ns.

Feature Summary

• Parallel-in serial-out data shifting capability
• Hold mode for data retention
• Chip select function to disable operations

Applications

• Data buffering applications
• Serial-to-parallel conversion circuits
• Digital signal processing systems

Procurement Notes

Verify the specific suffix 'SCX' against manufacturer documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status as original datasheets may indicate non-compliance for certain variants. Ensure the supplier provides valid traceability documents given the component's age and potential obsolescence status within the F/FAST series.

Selection Notes

Select this component when a 16-bit shift register with TTL input compatibility is required. The PQCC28 package suits surface-mount designs needing compact footprints. Consider the 13.5 ns propagation delay for timing constraints. Verify if the hold mode and chip select features align with system control requirements compared to standard shift registers lacking these controls.

Part Context

This part belongs to Fairchild's F/FAST series, known for high-speed CMOS technology compatible with TTL logic levels. The 74F676 base number designates a 16-bit parallel-in serial-out shift register. The SCX suffix typically indicates a specific tape-and-reel packaging variant suitable for automated assembly processes in high-volume manufacturing environments.

Replacement Considerations

Check for direct pin-compatible substitutes from onsemi or other manufacturers offering F/FAST series equivalents. Verify electrical parameters such as propagation delay and output drive current match the original design requirements before substitution.