SN74HC05NE4

Overview

The SN74HC05NE4 is a hex inverter with open-drain outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -40°C to +85°C. The device features buffered inputs, supports fanout up to 10 LSTTL loads, and offers significant power reduction compared to LSTTL logic ICs.

Feature Summary

• Contains six independent inverters performing the Boolean function Y = A in positive logic
• Open-drain output configuration allows sinking current to ground without sourcing current from VCC
• Standard CMOS inputs provide high impedance characteristics

Applications

• Synchronize inverted clock inputs
• Invert a digital signal
• Directly control LEDs

Procurement Notes

Verify the specific ordering suffix 'E4' indicates lead-free packaging compliance as per manufacturer documentation. Confirm the package type corresponds to the PDIP-14 physical dimensions provided in the datasheet. Ensure the component status is listed as active production before finalizing procurement plans.

Selection Notes

Select this component when open-drain logic inversion is required for wired-AND configurations or voltage translation applications. Consider the wide operating voltage range and low power consumption benefits over LSTTL alternatives. Verify that input signal edge rates meet recommended specifications to prevent oscillations.

Part Context

This part belongs to the SNx4HC05 family of hex inverters with open-drain outputs. It is designed for general-purpose digital logic applications requiring signal inversion and level shifting capabilities within standard CMOS technology constraints.

Replacement Considerations

SN74HC05N

FAQ

Can the outputs be connected together?

Yes, the open-drain outputs can be directly connected together to produce a wired-AND function because they cannot source current.

What happens if an input signal has slow edge rates?

Slow input edge rates can cause oscillations and damaging shoot-through current; devices with Schmitt-trigger inputs should be used to condition such signals.