MM74HCT32SJ

Inverter Gates Overview

The MM74HCT32SJ is a quad 2-input OR gate integrated circuit manufactured by Fairchild Semiconductor, belonging to the 74HCT logic series. It operates within a supply voltage range of 4.5V to 5.5V and features four independent logic channels in a 14-SOIC surface-mount package. The device provides high noise immunity and fast switching speeds typical of HCT technology, with a maximum propagation delay of 20ns at 5V and 50pF load. It supports standard TTL-compatible input levels while maintaining CMOS output drive capabilities.

Inverter Gates Feature Summary

• Integrates four independent 2-input OR logic functions within a single compact package
• Compatible with standard 5V CMOS and TTL logic families for versatile interfacing
• Features Schmitt-trigger-like noise filtering characteristics inherent to HCT inputs
• Designed for surface-mount assembly with lead-free compliant packaging options

Inverter Gates Applications

• Digital signal processing circuits requiring logical OR operations
• Microcontroller peripheral interface expansion boards
• Consumer electronics control logic modules
• Industrial automation signal conditioning systems

Inverter Gates Procurement Notes

Verify manufacturer authenticity through authorized distribution channels as Fairchild Semiconductor products may be sourced from various distributors. Confirm package variant matches the specific SJ suffix requirements for your PCB layout. Check current production status as legacy components may have limited availability or require obsolescence management planning. Ensure storage conditions comply with moisture sensitivity level specifications to prevent package damage during soldering processes.

Inverter Gates Selection Notes

Select this component when designing 5V logic systems requiring multiple OR gates in a small footprint. Compare against HC series variants if lower power consumption is critical, noting potential speed trade-offs. Verify input voltage compatibility with upstream drivers to ensure reliable logic level translation. Consider thermal dissipation requirements for densely packed assemblies despite low static current consumption.

Inverter Gates Part Context

This part belongs to the widely adopted 74HCT family of digital logic ICs, which bridges the gap between older TTL standards and modern CMOS technologies. Fairchild Semiconductor, now part of onsemi, produced this component for general-purpose digital applications. The 74HCT32 designation specifically indicates a quad 2-input OR gate configuration, forming a fundamental building block for complex combinational logic designs in embedded systems.

Inverter Gates Replacement Considerations

Direct substitutes include MM74HC32MX from onsemi and 74HC32D from Nexperia. Verify pinout compatibility and electrical parameter alignment before substitution. Check for any functional differences in input threshold voltages between HCT and HC series variants.