CD74HC574M

Overview

The CD74HC574M is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the HC/UH logic series. It features eight positive-edge-triggered circuits with three-state outputs in a single package. The device operates within a supply voltage range of 2V to 6V and supports a maximum operating frequency of 20MHz at nominal supply. It utilizes a 20-pin PDSO (Small Outline) surface-mount package and functions reliably across an industrial temperature range of -55°C to 125°C.

Feature Summary

• Octal configuration containing eight independent D-type flip-flops per package
• Positive edge triggering mechanism for data capture on clock transitions
• Three-state output capability allowing bus line sharing and isolation
• CMOS construction ensuring compatibility with standard digital logic systems

Applications

• Parallel-to-serial data conversion interfaces
• General-purpose register storage applications
• Bus buffer and latch circuits in digital systems
• Memory address latching mechanisms

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as documentation indicates non-compliance. Ensure the specific 20-pin SOP package matches design requirements. Validate that the manufacturer designation aligns with current corporate ownership structures following industry acquisitions.

Selection Notes

Select this component when an octal storage element with high-speed performance is required. The wide voltage range accommodates various power domains. Consider the three-state output for multiplexed bus architectures. Verify thermal management capabilities given the extended temperature rating for harsh environments.

Part Context

This part belongs to the widely adopted 74HC logic family, known for CMOS technology and broad compatibility. The CD74 prefix denotes commercial grade variants produced under Harris Corporation branding. This specific model represents a standard octal flip-flop solution prevalent in legacy and modern digital circuit designs requiring parallel data retention.

FAQ

What is the trigger type for the CD74HC574M?

The device uses positive edge triggering to capture input data.

How many bits does this integrated circuit contain?

It contains eight individual D-type flip-flop circuits.