SN74HC574N

Flip Flops Overview

The SN74HC574N is an octal edge-triggered D-type flip-flop from the Texas Instruments 74HC series, housed in a 20-pin PDIP package. It features non-inverting outputs with three-state control. The device operates on a supply voltage range of 2V to 6V and supports a maximum clock frequency of 28MHz. Key electrical parameters include a propagation delay of up to 57ns at 6V with 50pF load, and output drive currents of ±7.8mA. It functions within an industrial 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 allowing direct bus-driven connections without external buffers
• Edge-triggered data storage synchronized by positive-going transitions of the clock input
• Non-inverting logic polarity ensuring output states match the D-input states when enabled

Flip Flops Applications

• Registering data for temporary storage in digital logic systems
• Driving bus lines through controlled high-impedance states
• Parallel-to-serial conversion circuits utilizing shift register configurations
• General-purpose memory elements in microprocessor interface designs

Flip Flops Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and environmental compliance. Ensure the procurement channel provides original manufacturer documentation. Confirm that the component meets the required operating temperature range and voltage specifications for the target application environment before finalizing acquisition.

Flip Flops Selection Notes

Select this component when an octal latch or register with tri-state capability is required in a 74HC logic family design. It is suitable for applications needing wide voltage operation between 2V and 6V. Consider alternative packages like SOIC if surface mount technology is preferred over through-hole mounting. Verify that the 28MHz speed rating meets the system clock requirements.

Flip Flops Part Context

This part belongs to the standard 74HC (High-speed CMOS) logic family, widely used for general-purpose digital applications. It serves as a fundamental building block for sequential logic circuits. The 'N' suffix typically denotes the plastic dual in-line package variant. It is distinct from variants with different suffixes that may indicate tape-and-reel packaging or extended temperature ranges.

Flip Flops Replacement Considerations

Direct substitutes include SN74HC574NE4 and SN74HC574NG4, which maintain identical functional specifications. Variants such as SN74HC574NSR offer the same logic in a surface-mount SOIC package. Cross-family replacements like SN74HCT574N provide TTL-compatible inputs but require strict adherence to voltage level differences.