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74HCT00D,652

74HCT00D,652 Description

The 74HCT00D,652 is a quad 2-input NAND gate IC manufactured by Nexperia, part of the 74HCT series of high-speed CMOS logic devices. Designed for surface-mount (SOIC-14) applications, it operates within a 4.5V to 5.5V supply range, making it compatible with TTL levels while offering the low power consumption of CMOS technology. This device features four independent NAND gates, each with two inputs, and delivers a maximum propagation delay of 12ns at 4.5V with a 50pF load. Its RoHS3 compliance and REACH-unaffected status ensure adherence to environmental regulations, though it is marked as obsolete—requiring design considerations for long-term availability.

74HCT00D,652 Features

• Logic Type: Quad 2-input NAND gate with 4 circuits in a single package.
• Performance: 12ns propagation delay at 4.5V, ensuring high-speed operation for logic applications.
• Power Efficiency: Quiescent current ≤40µA, minimizing static power consumption.
• TTL Compatibility: Input thresholds of 2V (High) and 0.8V (Low), enabling seamless interfacing with TTL logic families.
• Output Drive: 4mA sink/source current, suitable for driving moderate loads.
• Robust Packaging: Supplied in a tube-packed SOIC-14 format with MSL1 (Unlimited) moisture sensitivity, ideal for automated assembly.
• Environmental Compliance: RoHS3 and REACH compliant, meeting global regulatory standards.

74HCT00D,652 Applications

This IC is ideal for digital logic design, including:

• Signal gating and conditioning in microcontroller-based systems.
• Clock distribution networks requiring precise logic-level management.
• Industrial control systems where TTL-CMOS interfacing is critical.
• Embedded systems leveraging its low-power CMOS architecture.
• Legacy equipment maintenance, given its TTL compatibility and obsolete status.

Conclusion of 74HCT00D,652

The 74HCT00D,652 offers a balance of speed, power efficiency, and TTL compatibility, making it a versatile choice for digital logic applications. While obsolete, its high reliability, robust packaging, and compliance with environmental standards ensure suitability for existing designs. Engineers should evaluate alternative 74HCT-series components for future-proofing, but this IC remains a practical solution for legacy or low-power logic systems.