SN74HC574PWR

Flip Flops Overview

The SN74HC574PWR 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 2 V to 6 V and supports a maximum clock frequency of 40 MHz. The device features a propagation delay of 31 ns at 6 V with 50 pF load, static current of 8 µA, and output drive capability of ±7.8 mA. It is housed in a 20-TSSOP package (0.173", 4.40 mm wide) and functions over an operating temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single integrated circuit.
• Three-state outputs designed for direct bus driving applications without external buffers.
• Positive-edge triggering mechanism ensures data capture on the rising clock transition.

Flip Flops Applications

• Buffer registers
• I/O ports
• Bidirectional bus drivers
• Working registers

Flip Flops Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-20 surface-mount package and reel packaging format. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) requirements for your assembly process. Ensure the manufacturer identification matches Texas Instruments to avoid counterfeit components. Check for any recent product change notices regarding marking or fabrication site updates.

Flip Flops Selection Notes

Select this component when an octal storage solution with high-speed tri-state output is required for bus-oriented architectures. The HC logic family offers compatibility with standard CMOS levels across a wide voltage range. Consider the 40 MHz clock limit and 31 ns propagation delay for timing constraints. Verify that the TSSOP-20 footprint fits the PCB layout and thermal requirements.

Flip Flops Part Context

This part belongs to the SN74HC574 series of octal edge-triggered D-type flip-flops. It is distinct from variants like SN74HCT574 which require 4.5 V to 5.5 V supply, and SN74AHCT574 which offers higher speed. The PWR suffix specifically denotes the plastic small-outline package variant suitable for surface-mount technology applications.

Flip Flops Replacement Considerations

SN74HC574PWRG4: Same functional specifications with updated manufacturing or marking standards.

Flip Flops FAQ

What is the maximum clock frequency for the SN74HC574PWR?

The maximum clock frequency is 40 MHz.

Does the SN74HC574PWR have Schmitt trigger inputs?

No, the SN74HC574PWR does not feature Schmitt trigger inputs.