74LVT574MSA

Overview

The Fairchild Semiconductor 74LVT574MSA is an octal D-type flip-flop featuring 3-state outputs, designed for low-voltage applications. It operates within a supply voltage range of 2.7 V to 3.6 V and utilizes a 20-SSOP package. The device exhibits a propagation delay of 5.3 ns, with high-level output current capability of -32 mA and low-level output current of 64 mA. It supports single-ended inputs and non-inverting polarity across eight circuits. Operating temperatures span from -40°C to +85°C, ensuring reliable performance in surface-mount designs.

Feature Summary

• Octal D-type flip-flop configuration with 3-state outputs
• Low-voltage operation optimized for 2.7 V to 3.6 V systems
• High drive strength with 64 mA low-level output current
• Fast switching performance with 5.3 ns propagation delay

Applications

• Memory interface circuits
• Microprocessor data bus registers
• Parallel-to-serial data conversion modules
• General-purpose storage elements in digital logic systems

Procurement Notes

Verify the exact manufacturer designation, as this component may be listed under onsemi or Fairchild Semiconductor depending on corporate history records. Confirm the specific suffix 'MSA' corresponds to the 20-SSOP package variant. Check for end-of-life status or obsolescence notices, as older logic families often face discontinuation. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified for SSOP packages during procurement planning.

Selection Notes

Select this component when designing low-voltage digital systems requiring octal storage with high drive capabilities. The 74LVT series is suitable for interfacing between different voltage domains where LVTTL compatibility is needed. Consider the 20-SSOP package for space-constrained surface-mount applications. Evaluate the 5.3 ns delay against system timing requirements to ensure signal integrity. Verify that the 3-state outputs align with bus architecture needs for multi-driver environments.

Part Context

The 74LVT574 belongs to the Low Voltage TTL (LVT) logic family, bridging the gap between traditional TTL and CMOS technologies. Manufactured by Fairchild Semiconductor, now part of onsemi, this octal flip-flop provides robust performance in 3.3 V systems. The MS A suffix indicates the small-shape outline package with 20 leads, widely used in consumer electronics and industrial control boards for compact logic implementation.

Replacement Considerations

Public confirmed substitute part numbers: 74LVTH574MSA, 74LVT574WM.