SN74HC574DWRG4

Flip Flops Overview

The SN74HC574DWRG4 is an octal edge-triggered D-type flip-flop with three-state outputs manufactured by Texas Instruments. It belongs to the SN54/74HC family, utilizing advanced silicon gate CMOS technology. The device features eight independent D-type flip-flops, each capable of storing one bit of digital information, triggered on the positive edge of the clock signal. It operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical parameters include a maximum propagation delay of 265 ns at 5 V, high-level output current of -7.8 mA, and low-level output current of 7.8 mA. It is housed in a 20-pin TSSOP package.

Flip Flops Feature Summary

• Octal configuration providing eight independent edge-triggered D-type storage elements for parallel data handling.
• Three-state outputs enable direct connection to bus-oriented systems without external buffer drivers.
• CMOS construction ensures low power consumption while maintaining compatibility with standard logic families.

Flip Flops Applications

• Registering and buffering parallel data in digital communication interfaces
• Implementing I/O ports in microcontroller-based embedded systems
• Serving as working registers in arithmetic logic units or control circuits

Flip Flops Procurement Notes

Verify the complete part number including the G4 suffix to confirm compliance with RoHS standards and lead-free manufacturing requirements. Confirm the TSSOP-20 package variant matches your PCB footprint design constraints. Ensure the supply voltage range aligns with your system's operational requirements before integration.

Flip Flops Selection Notes

Select this component when designing systems requiring multiple synchronized data storage elements with bus-compatible outputs. The HC series offers a balance of speed and power efficiency suitable for general-purpose logic applications. Consider the 265 ns propagation delay for timing-critical designs and verify that the 2 V to 6 V operating range covers your specific voltage rails.

Flip Flops Part Context

This device is part of the Texas Instruments SN54/74HC series of high-speed CMOS logic devices. The SN74HC574 specifically addresses the need for octal storage with tri-state capability, distinguishing it from non-tri-state variants like the SN74HC573. It complements other bus interface components within the same logic family.

Flip Flops Replacement Considerations

The SN74HC574DW serves as a non-compliant alternative lacking the G4 suffix. For equivalent functionality with different packaging, consider the SN74HC574DBR (SSOP) or SN74HC574N (PDIP). Verify pinout compatibility and electrical specifications before substituting.