SN74HCS27DR

Inverter Gates Overview

The SN74HCS27 is a triple 3-input NOR gate with Schmitt-trigger inputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device features low power consumption with typical supply current of 100 nA and input leakage current of ±100 nA. Output drive capability reaches ±7.8 mA at 5 V. Propagation delay varies between 6 ns and 32 ns depending on voltage. Input capacitance is typically 5 pF, and power dissipation capacitance per gate is 10 pF.

Inverter Gates Feature Summary

• Schmitt-trigger inputs provide hysteresis for noise rejection and tolerance to slow input signals
• Balanced CMOS push-pull outputs allow similar sourcing and sinking currents
• Low power consumption design suitable for energy-efficient applications
• Extended operating temperature range supports harsh environmental conditions

Inverter Gates Applications

• Alarm or tamper detection circuits
• S-R latch configurations using cross-coupled gates
• Signal conditioning for noisy digital environments

Inverter Gates Procurement Notes

Verify the specific package variant required, as the SN74HCS27 is available in SOIC (D) and TSSOP (PW) packages. Confirm that the selected part number matches the desired pin configuration and reel quantity specifications. Ensure compatibility with the target PCB footprint and soldering profile requirements before finalizing procurement orders.

Inverter Gates Selection Notes

Select this component when designing logic circuits requiring noise immunity due to its Schmitt-trigger architecture. It is appropriate for systems operating between 2 V and 6 V where low static power consumption is critical. Consider the propagation delay characteristics relative to system timing requirements and ensure output drive capabilities meet load demands without exceeding absolute maximum ratings.

Inverter Gates Part Context

This device belongs to the SN74HCS series of high-speed CMOS logic components. It provides three independent 3-input NOR functions within a single integrated circuit. The HCS designation indicates enhanced performance characteristics compared to standard HC logic families, specifically regarding power efficiency and input signal handling capabilities across varying supply voltages.

Inverter Gates Replacement Considerations

The SN74HCS27-Q1 is the automotive-qualified version of this component. Verify if automotive reliability standards are required for the application environment.