SN74HC32D

Inverter Gates Overview

The SN74HC32D is a quadruple 2-input positive-OR gate manufactured by Texas Instruments in a 14-pin SOIC package. 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 provides buffered inputs, balanced CMOS push-pull outputs, and significant power reduction compared to LSTTL logic ICs. It supports fanout up to 10 LSTTL loads.

Inverter Gates Feature Summary

• Contains four independent 2-input OR gates performing the Boolean function Y = A + B
• Features buffered inputs for high impedance and standard CMOS input characteristics
• Provides balanced CMOS push-pull outputs capable of sinking and sourcing similar currents

Inverter Gates Applications

• Monitoring error signals using fewer inputs
• Combining active-low enable signals
• Directly controlling the Enable pin of a fan driver

Inverter Gates Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and production status. The SN74HC32D part number indicates a standard SOIC package; however, availability may vary as manufacturers frequently update product lifecycles. Confirm RoHS compliance and lead finish details directly with the supplier or official datasheets before procurement.

Inverter Gates Selection Notes

Select this component when a quadruple 2-input OR gate is required for digital logic applications. Ensure the design accommodates the 2 V to 6 V supply voltage range and the -40°C to +85°C commercial temperature rating. Verify that the load capacitance does not exceed recommended limits to maintain switching performance specifications.

Inverter Gates Part Context

This device belongs to the SNx4HC32 family of quadruple 2-input OR gates. It is designed to replace older LSTTL logic ICs while offering lower power consumption. The SN74HC32D specifically utilizes a 14-pin Small Outline Integrated Circuit (SOIC) package, providing a compact solution for surface-mount assembly in electronic circuits.

Inverter Gates Replacement Considerations

SN74HC32DR

Inverter Gates FAQ

How should unused inputs be handled?

Unused inputs must be terminated to either VCC or ground. They can be directly terminated if completely unused or connected via a pull-up/pull-down resistor if used intermittently.

What are the input signal edge rate requirements?

Input signals must have fast edge rates as defined in the Recommended Operating Conditions. Slow edge rates can cause oscillations and damaging shoot-through current due to the standard CMOS input structure.