74F676SPC

Overview

The Fairchild Semiconductor 74F676SPC is a 16-bit shift register from the F/FAST series, housed in a 24-pin PDIP package. It supports synchronous parallel or serial data entry and provides serial output. The device operates with a supply voltage range of 4.5 V to 5.5 V and functions within an operating temperature range of 0°C to 70°C. Key electrical characteristics include a propagation delay of 13.5 ns and true output polarity. It features a hold mode and chip select functionality that disables both serial and parallel operations.

Feature Summary

• Supports synchronous parallel or serial data entry with serial output capability
• Includes hold mode and chip select functionality to disable serial and parallel operations
• Provides true output polarity for straightforward logic interfacing

Applications

• Data storage and buffering in digital systems
• Serial-to-parallel conversion tasks
• Parallel-to-serial conversion applications

Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor has undergone corporate changes involving ON Semiconductor. Confirm the specific package type (PDIP) and pin count (24) match your board design requirements. Ensure the operating temperature range (0°C to 70°C) aligns with your environmental conditions. Check for any obsolete status or lifecycle notices from the current supplier before finalizing procurement decisions.

Selection Notes

Select this component when a 16-bit shift register with synchronous control is required. The F/FAST series offers faster performance compared to standard 74LS equivalents. Consider the 24-pin DIP package if through-hole mounting is necessary. Verify that the 4.5 V to 5.5 V supply voltage range fits your system's power rails. The chip select feature is advantageous for managing multiple devices on a shared bus without complex decoding logic.

Part Context

The 74F676 belongs to the 74F (Fast) logic family, known for high-speed operation relative to earlier TTL standards. This specific part number denotes the plastic dual in-line package variant manufactured by Fairchild Semiconductor. It serves as a fundamental building block for sequential logic circuits requiring data shifting capabilities in industrial and consumer electronics.

Replacement Considerations

Check for direct cross-references from ON Semiconductor, which acquired Fairchild's logic business. Verify pin compatibility and electrical specifications against alternative 16-bit shift registers in the same logic family. Ensure substitute parts maintain the same package dimensions and thermal characteristics.