74LCX27SJ

Inverter Gates Overview

The Fairchild Semiconductor 74LCX27SJ is a low-voltage triple 3-input NOR gate integrated circuit. It features inputs tolerant to 5V signals, enabling direct interfacing between 5V and 3V logic systems. The device operates within a supply voltage range of 2.0V to 3.6V. It is housed in a 14-pin Small Outline Package (SOP) with a width of 3.90mm. The component supports a load capacitance of up to 50pF and includes overvoltage protection on all inputs.

Inverter Gates Feature Summary

• Triple 3-input NOR logic functionality
• 5V tolerant input structure for mixed-voltage compatibility
• Low voltage operation suitable for portable applications

Inverter Gates Applications

• Interface circuits between 5V and 3V logic domains
• Portable consumer electronics requiring low power consumption
• Battery-powered devices utilizing low-voltage logic families

Inverter Gates Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm that the 14-SOP package dimensions match the target PCB footprint. Ensure design-in reviews account for the discontinuation by Fairchild Semiconductor and identify qualified replacement sources if necessary.

Inverter Gates Selection Notes

Select this component when designing systems requiring three independent 3-input NOR gates with mixed-voltage I/O capabilities. It is appropriate for applications needing 5V tolerance on inputs while operating from a lower core voltage. Consider pinout compatibility with existing designs using standard SOP-14 footprints.

Inverter Gates Part Context

This component belongs to the 74LCX series of low-voltage CMOS logic devices. The series is characterized by high speed and low power dissipation. The 74LCX27 specifically provides triple 3-input NOR functionality. It is designed to replace older 74HC or 74HCT equivalents in low-voltage applications.

Inverter Gates Replacement Considerations

Check for equivalent parts from other manufacturers offering the same logic function and package. Verify pin-to-pin compatibility and electrical specifications such as input voltage tolerance and supply voltage range before substitution.