SN74LS27N

Inverter Gates Overview

The SN74LS27N is a triple 3-input positive-NOR gate manufactured by Texas Instruments. It utilizes Low-power Schottky (LS) TTL technology and is housed in a 14-pin Dual In-line Package (PDIP). The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to +70°C. Key electrical characteristics include a maximum low-level output current of 8 mA, a high-level output current of -400 µA, and a load capacitance of 15 pF.

Inverter Gates Feature Summary

• Integrates three independent 3-input NOR logic gates within a single package
• Employs Low-power Schottky technology for reduced power consumption while maintaining standard TTL speed compatibility
• Features diode-clamped inputs to suppress transmission line effects such as ringing during high-speed switching

Inverter Gates Applications

• General-purpose digital logic circuit design
• Industrial control systems requiring reliable NOR logic operations
• Consumer electronics utilizing standard TTL logic families

Inverter Gates Procurement Notes

Verify the specific manufacturer source and RoHS compliance status prior to procurement, as legacy LS series components may have varying production statuses across different suppliers. Confirm that the 14-pin PDIP package matches the target PCB footprint requirements. Ensure the commercial grade temperature rating of 0°C to +70°C aligns with the intended operational environment constraints.

Inverter Gates Selection Notes

Select this component when a design requires multiple independent NOR functions without consuming excessive board space. The LS series offers a balance between power efficiency and switching speed suitable for general applications. Verify that the 5V TTL logic levels are compatible with the interfacing devices in the system architecture.

Inverter Gates Part Context

This part belongs to the Texas Instruments SN74LS family, which represents Low-power Schottky TTL logic. The SN74LS27 specifically provides triple 3-input NOR functionality. It is distinct from other logic types like NAND or AND gates and serves as a fundamental building block for complex combinational logic circuits within the broader 7400-series ecosystem.

Inverter Gates Replacement Considerations

Compatible substitutes include the SN54ALS27A and SN54HC27. Verify pinout compatibility and ensure that the alternative technology (ALS or HC) meets the specific voltage and speed requirements of the existing circuit design.