74ACT00SCX

Overview

The onsemi 74ACT00SCX is a quad 2-input NAND gate integrated circuit manufactured in the 74ACTQ logic family. It operates within a supply voltage range of 4.5V to 5.5V and features TTL-compatible inputs with low-level logic at 0.8V and high-level logic at 2V. The device provides output drive currents of 24mA for both sourcing and sinking. Maximum propagation delay is specified at 7.5ns under 5V supply with 50pF load capacitance. Static current consumption is limited to a maximum of 2µA. It is housed in a 14-SOIC surface-mount package with a width of 3.90mm and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• TTL-compatible input thresholds facilitate direct interfacing with standard TTL logic circuits without additional level shifting components.
• Enhanced output drive capability allows direct driving of loads, simplifying digital circuit design requirements.
• Reduced quiescent current consumption improves overall system energy efficiency compared to previous generations.

Applications

• Broadband access equipment signal processing
• Home audio system component logic control
• Medical electronics device interface circuits
• Test and measurement instrument logic gates

Procurement Notes

Verify part status carefully as the 74ACTQ series may be obsolete or end-of-life depending on specific manufacturing batches. Confirm exact datasheet revisions match design requirements. Check for valid RoHS compliance documentation. Ensure substitute parts like 74ACT00SCX are cross-referenced for pin compatibility. Validate moisture sensitivity levels before assembly planning.

Selection Notes

Select this component when TTL-compatible CMOS performance is required in a narrow SOIC package. The ACTQ series offers improved speed and drive strength over standard AC families while maintaining lower power consumption. Verify that the 4.5V to 5.5V supply range aligns with the target system voltage. Consider the 7.5ns propagation delay for timing-critical applications within the specified temperature range.

Part Context

This component belongs to the 74ACTQ logic family, which combines the speed of AC technology with the robustness of Q (Quasi-Stable) characteristics. It serves as a fundamental building block for digital logic designs requiring reliable NAND operations. The 14-SOIC package is standard for surface-mount assembly, suitable for automated PCB manufacturing processes common in consumer and industrial electronics.

Replacement Considerations

The 74ACT00SCX is listed as a similar replacement for the discontinued 74ACTQ00SCX. Verify electrical parameter equivalence before substitution. Ensure package dimensions and pinout configurations remain identical to avoid PCB layout modifications during the transition process.