SN74HCT574DWR

Flip Flops Overview

The SN74HCT574DWR is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments, housed in a 20-SOIC package. It operates within a supply voltage range of 4.5 V to 5.5 V and features non-inverting three-state outputs designed for bus-driven applications. The device exhibits a typical propagation delay of 22 ns and supports low power consumption with a maximum ICC of 80 µA. It provides robust output drive capabilities, including ±6 mA at 5 V, while maintaining TTL-compatible input voltages and minimal input current.

Flip Flops Feature Summary

• Features three-state non-inverting outputs suitable for direct bus line driving or connecting up to 15 LSTTL loads.
• Designed specifically for bus-driven architectures with compatible TTL input voltage levels.
• Delivers large current drive capability alongside low static power consumption characteristics.

Flip Flops Applications

• Implementing buffer registers
• Configuring I/O ports
• Utilizing as bidirectional bus drivers
• Functioning as working registers

Flip Flops Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated surface-mount assembly processes. Confirm that the 20-SOIC physical dimensions align with the target PCB footprint constraints. Ensure the operating temperature range meets the environmental specifications of the final application system before procurement.

Flip Flops Selection Notes

Select this component when TTL voltage compatibility is required alongside high-speed logic performance. The HCT series ensures seamless interfacing with older TTL systems while providing modern CMOS noise immunity. Consider the 22 ns propagation delay and 80 µA power consumption against alternative AC or AHC series devices if lower latency or wider voltage ranges are necessary for the design.

Flip Flops Part Context

This part belongs to the SN74HCT574 family of octal D-type flip-flops. It shares functional similarities with other variants like the SN74F574DWR and SN74AHCT574DWR but differs in speed and power characteristics. The HCT technology bridges the gap between standard TTL inputs and CMOS outputs, making it a staple for mixed-logic interface designs requiring reliable data storage and transfer.

Flip Flops Replacement Considerations

SN74HCT574DW