SN74LS27NSR

Inverter Gates Overview

The SN74LS27NSR is a triple 3-input positive-NOR gate manufactured by Texas Instruments using Low-power Schottky (LS) bipolar logic technology. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 27 ns at 5 V. The device features a low-level output current capability of 8 mA and a high-level output current of -400 µA. Designed for surface-mount applications, it is housed in a 14-pin SOIC package and functions reliably across an operating temperature range of 0°C to +70°C.

Inverter Gates Feature Summary

• Integrates three independent 3-input NOR gates within a single integrated circuit
• Utilizes Low-power Schottky technology to reduce power consumption while maintaining standard TTL speed compatibility
• Provides complementary outputs for each logic gate channel

Inverter Gates Applications

• Digital logic circuits requiring multi-input NOR functionality
• Data processing systems utilizing TTL-compatible logic families
• Industrial control systems operating within standard commercial temperature ranges

Inverter Gates Procurement Notes

Verify the specific suffix 'SR' indicates the tape-and-reel packaging format compatible with automated surface-mount assembly processes. Confirm that the component meets RoHS directives as specified in the manufacturer's documentation. Ensure the ordering quantity aligns with the reel specifications provided in the official datasheet to avoid handling discrepancies during production integration.

Inverter Gates Selection Notes

Select this component when a compact surface-mount solution for triple 3-input NOR operations is required within the LS logic family. It serves as a direct replacement for through-hole variants like the SN74LS27N in designs transitioning to SMD manufacturing. Consider the 27 ns propagation delay and 8 mA drive capability against system timing and load requirements before finalizing the design.

Inverter Gates Part Context

This part belongs to the Texas Instruments SN74LS series, which utilizes Low-power Schottky technology to balance switching speed with reduced power dissipation compared to standard TTL. The SN74LS27 variant specifically provides three independent 3-input NOR gates, offering a versatile building block for complex digital logic implementations in commercial electronic equipment.

Inverter Gates Replacement Considerations

The SN74LS27N is the verified through-hole equivalent offering identical logical and electrical characteristics. Other manufacturers produce pin-compatible alternatives such as the HD74LS27 or PO74G27A, though verification of specific parameter tolerances against the TI datasheet is required.