CD74HC174E

Overview

The CD74HC174E is a hex D-type flip-flop manufactured by Harris Corporation, belonging to the 74HC series. It features six positive-edge-triggered D-type flip-flops with individual data inputs and outputs, sharing a common clock and an asynchronous master reset input. The device operates on a supply voltage range of 2V to 6V and supports through-hole mounting in a 16-DIP package. It is designed for high noise immunity and low power dissipation, functioning within a temperature range of -55°C to 125°C.

Feature Summary

• Hex configuration containing six independent D-type flip-flops
• Positive-edge triggering synchronized by a common clock signal
• Asynchronous master reset capability for simultaneous initialization
• CMOS construction ensuring low power consumption and high noise immunity

Applications

• Parallel-to-serial data conversion circuits
• Digital state storage and memory elements
• Sequence generation and control logic systems

Procurement Notes

Verify component authenticity as the manufacturer is listed as Harris Corporation, which may indicate legacy or surplus sourcing. Confirm RoHS compliance status, as documentation indicates non-compliance. Ensure the 16-DIP package matches the target PCB footprint. Validate operating temperature ratings against environmental requirements before integration into final assemblies.

Selection Notes

Select this component when a hex D-type flip-flop with asynchronous reset is required. The HC series offers CMOS compatibility suitable for various digital logic levels. Consider the 16-DIP package for prototyping or through-hole applications. Verify that the positive-edge trigger aligns with the system clock timing requirements and that the supply voltage range fits the design constraints.

Part Context

This part belongs to the 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits. The 'E' suffix typically denotes the through-hole DIP package variant. As a hex flip-flop, it consolidates multiple storage elements into a single integrated circuit, reducing board space compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.