SN74HC32DRE4

Inverter Gates Overview

The SN74HC32DRE4 is a Texas Instruments quadruple 2-input positive-OR gate in the 74HC series. It operates on a supply voltage of 2 V to 6 V and supports fanout up to 10 LSTTL loads. The device features buffered inputs, balanced CMOS push-pull outputs, and standard high-impedance CMOS inputs with clamping diodes. It provides significant power reduction compared to LSTTL logic ICs.

Inverter Gates Feature Summary

• Contains four independent 2-input OR gates performing Boolean function Y = A + B
• Balanced CMOS push-pull outputs capable of sinking and sourcing similar currents
• Standard CMOS inputs with internal positive and negative clamping diode structures

Inverter Gates Applications

• Monitoring error signals using fewer inputs
• Combining active-low enable signals
• Directly controlling fan driver enable pins via combined overheat signals

Inverter Gates Procurement Notes

Verify the specific ordering suffix 'E4' against the manufacturer's current documentation to confirm lead finish or material specifications. Confirm package availability as the base SN74HC32D part may be listed as obsolete while other variants remain active. Ensure compliance with RoHS standards and moisture sensitivity levels for your assembly process.

Inverter Gates Selection Notes

Select this component when a wide operating voltage range from 2 V to 6 V is required. It is suitable for designs needing low static power consumption and high noise immunity typical of HC technology. Consider the SOIC-14 package dimensions if space constraints exist. Verify input transition rates to prevent excessive current consumption due to slow edge rates.

Inverter Gates Part Context

This device belongs to the SNx4HC32 family of quadruple 2-input OR gates manufactured by Texas Instruments. It utilizes advanced silicon gate CMOS technology to combine LS-TTL speed with standard CMOS low-power dissipation. The product line includes various package options such as SOIC, SSOP, PDIP, and TSSOP to accommodate different board layout requirements.

Inverter Gates Replacement Considerations

SN74HC32DR

Inverter Gates FAQ

How should unused inputs be handled?

Unused inputs must not be left floating. They should be terminated to either VCC or ground using pull-up or pull-down resistors to prevent undefined operational states.

What is the maximum recommended capacitive load?

The datasheet recommends ensuring the capacitive load at the output is less than or equal to 70 pF to ensure optimal performance, though larger loads can be applied with series resistors.