MM74HCU04N

Inverter Gates Overview

The MM74HCU04N is a hex inverter integrated circuit manufactured by Fairchild Semiconductor. It utilizes advanced silicon-gate CMOS technology to achieve operating speeds comparable to LS-TTL gates while maintaining low power consumption typical of standard CMOS devices. The device features high noise immunity and can drive up to 15 LS-TTL loads. All inputs include internal diode clamps to VCC and ground for static discharge protection. Key electrical parameters include a typical propagation delay of 7 ns, a maximum quiescent power consumption of 10 µA at room temperature, and a maximum input current of 1 µA.

Inverter Gates Feature Summary

• Unbuffered hex inverter design compatible with the 74LS logic family pin-out
• High noise immunity suitable for demanding digital environments
• Internal input protection against static discharge via diode clamps

Inverter Gates Applications

• Logic level shifting between mismatched voltage domains
• Signal inversion in bus-organized systems
• General-purpose digital logic processing

Inverter Gates Procurement Notes

Verify the manufacturer marking on the component body to confirm Fairchild Semiconductor origin. Ensure the package matches the specified PDIP-14 configuration. Check datasheet revisions for any updates regarding environmental compliance or specific testing conditions. Confirm that the application environment stays within the specified operational limits to maintain performance integrity.

Inverter Gates Selection Notes

Select this component when a functionally equivalent replacement for the 74LS04 is required but lower power consumption is necessary. The HCU series offers speed similar to LS-TTL without the associated power penalty. Consider the unbuffered nature of the gate for applications requiring direct signal inversion without buffering stages. Verify compatibility with existing PCB footprints designed for standard DIP-14 packages.

Inverter Gates Part Context

This part belongs to the 74HCU logic family, which bridges the performance gap between standard CMOS and Low-power Schottky TTL technologies. It provides the driving capability of LS-TTL with the power efficiency of CMOS. The 'N' suffix typically denotes a plastic dual-in-line package, distinguishing it from surface-mount variants like the 'M' suffix used in SOIC packages.

Inverter Gates Replacement Considerations

The SN74HC04N is a functional alternative within the HC family, though it may exhibit different switching characteristics compared to the HCU series.