SN74HCT574DWG4

Flip Flops Overview

The SN74HCT574DWG4 is an octal edge-triggered D-type flip-flop with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides non-inverting outputs capable of driving bus lines or up to 15 LSTTL loads, with typical propagation delays of 22 ns at 5 V. Packaged in a 20-SOIC (Wide) format, it supports surface-mount installation and is designed for applications requiring buffered registers, I/O ports, and bidirectional bus drivers.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops with positive-edge triggering
• Three-state outputs designed for direct connection to bus systems
• TTL voltage compatible inputs ensuring interoperability with standard logic families
• Low power consumption characteristics suitable for energy-efficient designs

Flip Flops Applications

• Buffered register implementations
• I/O port interfacing
• Bidirectional bus driver circuits
• Working register storage

Flip Flops Procurement Notes

Verify the presence of the 'G4' suffix to confirm compliance with RoHS standards and environmental requirements. Ensure the SOIC-20 package dimensions match the target PCB footprint. Confirm that the operating temperature range aligns with system thermal constraints. Cross-reference the manufacturer part number against official datasheets to avoid counterfeit components.

Flip Flops Selection Notes

Select this component when TTL input compatibility is required alongside high-speed performance. The HCT series offers faster switching than standard HC logic while maintaining noise immunity. Consider the wide-body SOIC package for improved thermal dissipation and ease of assembly compared to narrower variants. Evaluate current drive capabilities against load requirements before finalizing the design.

Flip Flops Part Context

This device belongs to the Texas Instruments 74HCT logic family, which bridges CMOS technology with TTL input levels. The SN74HCT574 variant specifically provides octal storage functionality. The G4 suffix indicates a green, lead-free, and halogen-free product compliant with global environmental directives. It serves as a robust solution for digital data retention in mixed-voltage environments.

Flip Flops Replacement Considerations

• SN74HCT574DW

Flip Flops FAQ

Is the SN74HCT574DWG4 compatible with 3.3V logic?

No, the device requires a supply voltage between 4.5 V and 5.5 V. It is not suitable for 3.3V systems.

What does the 'G4' suffix indicate?

The 'G4' suffix denotes that the component is RoHS compliant and manufactured using green materials, including being halogen-free.