74F675APC

Overview

The Fairchild Semiconductor 74F675APC is a 16-bit serial-in/serial-out shift register with a 16-bit parallel-output storage register. It operates within a voltage range of 4.5V to 5.5V and supports frequencies up to 85MHz. The component utilizes a 24-pin MDIP package for through-hole mounting. Key electrical characteristics include a minimum operating voltage of 4.5V and a maximum of 5.5V, ensuring compatibility with standard TTL logic levels.

Feature Summary

• Integrates a 16-bit serial input shift register with a separate 16-bit parallel output storage register
• Supports high-speed operation with a frequency capability of up to 85MHz
• Provides true output polarity for direct interface with downstream logic circuits

Applications

• Serial-to-parallel data conversion in digital communication systems
• Parallel data buffering and storage in microprocessor interfaces
• Shift register chains for extended I/O expansion in embedded controllers

Procurement Notes

Verify the specific suffix 'PC' against the manufacturer's current datasheet to confirm pinout and package dimensions match your PCB footprint. Ensure the supply chain source provides valid RoHS compliance documentation if required by your assembly standards. Cross-reference the part number with official Fairchild or onsemi distributors to avoid obsolete stock variations.

Selection Notes

Select this component when a 16-bit capacity is required for serial data acquisition with immediate parallel availability. The 85MHz speed rating suits high-frequency applications where propagation delay must be minimized. Consider the 24-pin DIP package constraints for board space and verify that the 4.5V to 5.5V supply range aligns with your system's power architecture.

Part Context

This device belongs to the 74F series of high-speed TTL logic components manufactured by Fairchild Semiconductor. The 74F675A variant specifically combines shifting and storage functions in a single package. It is designed for applications requiring reliable data transfer between serial sources and parallel destinations in industrial and consumer electronics.

Replacement Considerations

The 74F675ASPC is a documented substitute offering identical functionality in a similar DIP package. Verify pin compatibility before substitution. Other variants in the 74F675A family may differ in package type but retain core logical operations.