74AC574PC

Overview

The onsemi 74AC574PC is an octal D-type flip-flop belonging to the 74AC logic series. It features eight independent D-type flip-flops with positive-edge triggering, designed for high-speed digital applications. The device operates within a supply voltage range of 2 V to 6 V and provides single-ended non-inverting outputs. Packaged in a 20-pin PDIP format, it supports through-hole mounting and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Octal architecture containing eight independent D-type flip-flops for parallel data storage
• Positive-edge triggered operation synchronized with clock signal transitions
• Single-ended non-inverting output configuration suitable for direct interfacing

Applications

• Parallel data storage and buffering in digital systems
• Input/output port expansion for microprocessor interfaces
• Shift register construction and sequential logic circuits

Procurement Notes

Verify component authenticity and physical condition upon receipt. Confirm package integrity and pin alignment against specifications. Ensure storage conditions comply with manufacturer guidelines to prevent moisture damage. Validate electrical parameters against datasheet limits before integration into final designs.

Selection Notes

Select this component when eight-bit parallel latching is required with AC series performance characteristics. Consider the 20-pin DIP package for prototyping or through-hole manufacturing requirements. Evaluate the 2V to 6V operating range against system power constraints. Assess propagation delay and drive current capabilities against load requirements.

Part Context

This part belongs to the 74AC family of high-speed CMOS logic devices manufactured by onsemi. The 74AC series offers improved speed and lower power consumption compared to earlier HC or LS technologies. As an octal flip-flop, it serves as a fundamental building block for complex sequential logic designs requiring multiple simultaneous data storage elements.

Replacement Considerations

Direct substitutes include MC74AC574PC and MM74AC574PC from the same manufacturer. Cross-manufacturer equivalents such as SN74AC574N may be considered if pin compatibility and electrical specifications align with design requirements.