74HC574D

Overview

The Toshiba 74HC574D is an octal D-type edge-triggered flip-flop featuring three-state outputs. It operates within a supply voltage range of 2V to 6V and supports surface-mount installation in a SOIC-14 package. The device provides non-inverting logic with single-ended inputs and outputs, designed for bus-oriented applications requiring low power consumption.

Feature Summary

• Octal D-type positive-edge triggered flip-flop architecture
• Three-state output capability for bus-driven systems
• CMOS construction ensuring low power consumption

Applications

• Bus-oriented memory register implementations
• Data storage circuits in digital systems
• Parallel-to-serial data conversion modules

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verify current availability through authorized distributors or secondary markets. Confirm RoHS compliance status and check for valid replacement part numbers before finalizing procurement plans.

Selection Notes

Select this component only if legacy compatibility with the 74HC series is required. Evaluate alternative active parts from the same family or newer generations that offer improved performance metrics and longer lifecycle support for new designs.

Part Context

Part of the 74HC CMOS logic IC series fabricated with silicon gate technology. Designed to operate similarly to equivalent LS-TTL devices while offering enhanced speed and lower power characteristics typical of high-speed CMOS logic families.

Replacement Considerations

Public confirmed substitute part numbers include MC74HC574AFEL (onsemi) and SN74HC574DWR (Texas Instruments). These alternatives maintain functional compatibility within the 74HC family specifications.