SN74LVC574AN

Flip Flops Overview

The SN74LVC574AN is an octal D-type edge-triggered flip-flop from Texas Instruments' LVC logic series. It features eight non-inverting outputs with three-state capability, housed in a 20-pin PDIP package for through-hole mounting. The device operates within a supply voltage range of 1.65 V to 3.6 V and accepts both CMOS and TTL input levels. Key electrical specifications include a propagation delay of 7.8 ns, with output drive capabilities of -24 mA for high-level and 24 mA for low-level currents.

Flip Flops Feature Summary

• Provides synchronous data storage via eight independent D-type flip-flops triggered on the positive clock edge.
• Features three-state outputs that allow direct connection to bus-oriented systems without additional interface hardware.
• Ensures compatibility with mixed-voltage environments by supporting both CMOS and TTL input logic levels.

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Buffering and latching operations in microprocessor-based systems
• Register file implementations in digital logic designs

Flip Flops Procurement Notes

Verify the specific suffix 'AN' corresponds to the 20-pin PDIP through-hole package variant rather than surface-mount options like 'DBR' or 'PW'. Confirm RoHS compliance status and check for any lead-free manufacturing updates. Ensure the supplier provides official datasheets matching the Texas Instruments part number to avoid counterfeit components. Validate pinout alignment with legacy PCB footprints if replacing older designs.

Flip Flops Selection Notes

Select this component when through-hole assembly is required for robust mechanical stability or prototyping needs. Choose the LVC series for lower power consumption compared to standard 74HC devices while maintaining similar speed characteristics. Consider the 3.6 V maximum rating when interfacing with higher voltage buses, as level shifting may be necessary for 5 V systems. Evaluate the 7.8 ns propagation delay against system timing requirements to ensure adequate setup and hold times are met.

Flip Flops Part Context

This part belongs to the widely adopted 74-series logic family, specifically the Low-Voltage CMOS (LVC) subset designed for modern portable and battery-powered applications. The SN74LVC574A variant serves as a direct functional replacement for older octal latch technologies but offers improved noise immunity and reduced static power dissipation. Its enduring presence in industrial catalogs highlights its role as a fundamental building block for sequential logic design.

Flip Flops Replacement Considerations

SN74LVC574APWR

Flip Flops FAQ

Does the SN74LVC574AN support 5 V operation?

No, the maximum supply voltage is 3.6 V. While inputs tolerate 5 V signals, the VCC must not exceed 3.6 V.

What is the package type for the 'AN' suffix?

The 'AN' suffix indicates a 20-pin Plastic Dual In-line Package (PDIP) suitable for through-hole mounting.