74ACT02SCX

Overview

The onsemi 74ACT02SCX is a quad 2-input NOR gate in the 74ACT logic family, housed in a 14-lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features TTL-compatible inputs with a maximum low-level input voltage of 0.8V and a minimum high-level input voltage of 2.0V at 5.5V. Outputs can source and sink up to 24mA. Propagation delays are specified as a maximum of 9.0ns for tPLH and 10.0ns for tPHL at 5.0V with a 50pF load.

Feature Summary

• Contains four independent 2-input NOR gates
• TTL-compatible input thresholds
• Outputs capable of sourcing and sinking 24mA

Applications

• General digital logic processing
• Signal gating and switching
• Data path control circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape and reel packaging variations. Ensure the supplier provides valid traceability documentation matching the original Fairchild Semiconductor specifications.

Selection Notes

Select this component when TTL-compatible interface levels are required alongside AC speed performance. The SOIC-14 package is suitable for surface mount applications requiring standard pin spacing. Verify that the 4.5V to 5.5V supply range aligns with the system power architecture before integration.

Part Context

This part belongs to the 74AC/ACT series of logic integrated circuits originally developed by Fairchild Semiconductor. The ACT variant specifically bridges the gap between older TTL standards and newer CMOS technologies by providing compatible input thresholds while maintaining lower power consumption than legacy counterparts.

Replacement Considerations

MC74ACT02DR2G