4002BDM

Overview

The National Semiconductor CD4002BDM is a CMOS integrated circuit featuring two independent 4-input NOR gates. It operates within a supply voltage range of 3V to 18V, ensuring compatibility with standard logic families. The device supports propagation delays typical for the 4000 series and functions across an industrial temperature range from -55°C to +125°C. Packaged in a 14-pin SOIC (SOP) format, it provides dual logic functionality in a compact surface-mount configuration suitable for general-purpose digital applications.

Feature Summary

• Dual independent 4-input NOR gate architecture
• CMOS technology for low power consumption
• Wide operating voltage range from 3V to 18V
• Industrial temperature rating up to 125°C

Applications

• General-purpose digital logic circuits
• Signal processing and switching applications
• Consumer electronics control systems

Procurement Notes

Verify the manufacturer marking on the component body to confirm National Semiconductor origin, as this part number may be produced by other licensees under the same specification. Ensure the package type matches the required SOP-14 footprint. Check for any specific suffix variations that might indicate different temperature grades or packaging options before finalizing procurement specifications.

Selection Notes

Select this component when dual 4-input NOR logic is required in a surface-mount design. Consider the 3V to 18V operating range for flexibility in power supply design. Verify that the 125°C maximum junction temperature meets the thermal requirements of the target application environment compared to commercial grade alternatives.

Part Context

The CD4002B belongs to the widely used 4000-series CMOS logic family, known for high noise immunity and broad voltage operation. The 'DM' suffix typically denotes a plastic small-outline package variant. This series serves as a foundational building block for complex digital systems, offering reliable performance in various industrial and consumer electronic designs.

Replacement Considerations

Compatible substitutes include HEF4002B, MC14002B, and MM74C4002. Verify pinout compatibility and electrical characteristics such as propagation delay and supply current before substitution.