74ACQ574SJ

Overview

The Fairchild Semiconductor 74ACQ574SJ is an octal D-type flip-flop featuring a buffered common clock and a buffered common output enable. It operates within a supply voltage range of 2V to 6V and supports a minimum operating temperature of -40°C and a maximum of +85°C. The device utilizes CMOS technology and provides 3-STATE outputs for bus-oriented applications. It is housed in a 20-SOIC package with dimensions of 12.6mm length, 5.30mm width, and 1.8mm height.

Feature Summary

• Octal D-type flip-flop architecture with separate inputs for each stage
• Buffered common clock and output enable signals for synchronized operation
• 3-STATE outputs designed for efficient bus-oriented system integration

Applications

• Bus-oriented data storage systems
• High-speed digital logic circuits
• Low-power electronic designs requiring precise timing control

Procurement Notes

Verify the current availability status as this component may be discontinued or subject to obsolescence notices from the manufacturer. Confirm that the specific SOIC-20 package variant matches the required board layout specifications. Ensure compliance with RoHS directives if environmental regulations apply to the final assembly. Cross-reference the part number suffixes to confirm exact pinout and electrical characteristics against the official datasheet before procurement.

Selection Notes

Select this component when designing systems requiring octal data latching with high-speed performance and low power consumption. The buffered clock and output enable features simplify timing constraints in complex digital architectures. Consider the 3-STATE output capability for managing multiple devices on shared data buses. Verify that the CMOS technology aligns with the system's voltage levels and noise immunity requirements.

Part Context

This device belongs to the ACQ/ACTQ series of high-speed, low-power logic components manufactured by Fairchild Semiconductor. It serves as a fundamental building block for sequential logic circuits, offering reliable data storage capabilities. The series is characterized by its compatibility with standard bus structures and its ability to operate across a wide temperature range, making it suitable for various industrial and commercial applications.

Replacement Considerations

The 74AC374SCX_NL is a documented substitute within the same product family, offering similar octal D-type flip-flop functionality with 3-STATE outputs. Verify pin compatibility and electrical specifications before substitution.