MM74HCT08SJ

Inverter Gates Overview

The MM74HCT08SJ is a quad 2-input AND gate manufactured by Fairchild Semiconductor, now part of onsemi. It utilizes HCT CMOS technology to provide TTL-compatible logic levels while maintaining low power consumption. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface mount installation in a 14-pin SOIC package. Key electrical characteristics include a propagation delay of 11 ns at 5 V with 50 pF load, and output drive currents of ±4.8 mA. It functions reliably across an industrial temperature range from -55°C to +125°C.

Inverter Gates Feature Summary

• Provides four independent 2-input AND logic gates in a single integrated circuit
• Features TTL-compatible input thresholds for direct interfacing with TTL logic systems
• Offers high noise immunity and robust latch-up performance exceeding 100 mA per JESD 78 standards
• Includes input clamp diodes to facilitate safe interfacing with voltages exceeding the supply rail

Inverter Gates Applications

• Digital signal processing circuits requiring logical conjunction operations
• Interface adapters between TTL and CMOS logic domains
• Microprocessor system address decoding and control logic generation
• General-purpose digital logic implementation in industrial equipment

Inverter Gates Procurement Notes

Verify component authenticity as this specific part number indicates legacy Fairchild Semiconductor origin. Confirm that the suffix SJ corresponds to the correct SOIC-14 package variant. Check current availability status, as older manufacturing runs may be discontinued or replaced by updated onsemi designations. Ensure compliance with RoHS directives if required for the target assembly process.

Inverter Gates Selection Notes

Select this component when TTL-level compatibility is mandatory alongside CMOS power efficiency. The HCT series is appropriate for systems requiring direct connection to 5V TTL outputs without level shifting. Consider the 14-pin SOIC package constraints for PCB layout. Evaluate thermal requirements given the extended operating temperature range up to 125°C for industrial applications.

Inverter Gates Part Context

This device belongs to the standard 74HCT08 logic family, widely used for basic Boolean AND operations. It represents the High-speed CMOS Technology variant designed specifically for backward compatibility with 74LS TTL devices. The MM prefix typically denotes Fairchild Semiconductor's commercial grade product line before full integration into onsemi portfolios.

Inverter Gates Replacement Considerations

Public confirmed substitute part numbers include MM74HCT08MTC and MM74HCT08N. Verify pinout compatibility and package dimensions before substitution. Note that manufacturer transitions from Fairchild to onsemi may involve minor ordering suffix changes.