74HCT00D

Overview

The Toshiba Semiconductor and Storage 74HCT00D is a quad 2-input NAND gate integrated circuit belonging to the 74HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V, ensuring compatibility with standard TTL logic levels while utilizing CMOS technology for low power dissipation. The device features four independent NAND gates in a single package, providing eight inputs and four outputs. It is housed in a 14-pin SOIC surface-mount package, designed for high noise immunity and robust latch-up performance exceeding 100 mA per JESD 78 Class II Level B standards.

Feature Summary

• Integrates four independent 2-input NAND logic functions within a single compact package
• Utilizes HCT technology to provide direct compatibility with standard TTL input levels
• Ensures high noise immunity and robust latch-up protection capabilities
• Supports surface-mount installation via a standard 14-lead SOIC footprint

Applications

• General-purpose digital logic signal processing circuits
• TTL-to-CMOS interface bridging applications
• Embedded system control logic implementation
• Industrial equipment signal gating and masking

Procurement Notes

Verify the manufacturer designation explicitly as Toshiba Semiconductor and Storage during sourcing, as this part number is also utilized by other vendors such as Nexperia. Confirm the specific suffix indicates the correct SOIC-14 package variant. Ensure compliance with RoHS directives if required for the target assembly process. Cross-reference the datasheet revision to confirm pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when a design requires multiple NAND gates with strict TTL voltage level compatibility. The HCT series is appropriate for systems interfacing between older TTL components and modern CMOS logic. Consider the 14-SOIC package constraints regarding board space and thermal dissipation. Verify that the operating temperature range meets the environmental requirements of the intended deployment scenario.

Part Context

This component belongs to the widely adopted 74HCT logic family, which bridges the gap between legacy TTL and modern CMOS technologies. The 74HCT00D specifically provides quad NAND functionality, serving as a fundamental building block for complex digital circuits. Its prevalence in industrial and consumer electronics stems from its reliable performance and standardized pin configuration across various manufacturers.

Replacement Considerations

Public confirmed substitute part numbers include the Nexperia 74HCT00D and the Texas Instruments SN74HCT00DR. These alternatives maintain functional equivalence and compatible pinouts. Verify package dimensions and electrical specifications against the original Toshiba datasheet to ensure seamless integration without redesigning the printed circuit board layout.