CD4078BD

Gates And Inverters - Multi-Function, Configurable Overview

The CD4078BD is a single configurable multiple-function gate from the Texas Instruments 4000B series, manufactured by Harris Corporation. It features eight inputs and one output housed in a 14-pin ceramic dual in-line package (CDIP-14). The device operates on a supply voltage range of 3 V to 18 V and supports an operating temperature range from -55 °C to +125 °C. Key electrical specifications include a low-level output current of 6.8 mA, a high-level output current of -6.8 mA, and a propagation delay of 75 ns at nominal supply conditions. The component is radiation hardened and complies with JESD-30 code R-CDIP-T14.

Gates And Inverters - Multi-Function, Configurable Feature Summary

• Configurable logic function allowing selection between NOR and OR operations via control inputs.
• Radiation-hardened construction suitable for harsh environments.
• Wide operating temperature range supporting extreme thermal conditions.

Gates And Inverters - Multi-Function, Configurable Applications

• Military aerospace systems requiring radiation tolerance
• High-reliability industrial control circuits
• Spacecraft logic processing units

Gates And Inverters - Multi-Function, Configurable Procurement Notes

Verify the manufacturer designation carefully, as the CD4078BD was originally produced by Harris Corporation before acquisition by Texas Instruments. Confirm that the specific unit matches the ceramic dual in-line package (CDIP-14) and radiation-hardened specifications rather than standard plastic variants. Ensure compliance with JESD-30 code R-CDIP-T14 for physical compatibility. Cross-reference datasheets to confirm functional equivalence if sourcing from legacy stock or alternative distributors.

Gates And Inverters - Multi-Function, Configurable Selection Notes

Select this component when radiation hardness and wide temperature stability are critical requirements. The CDIP-14 package offers superior thermal and mechanical robustness compared to plastic alternatives. Consider the 75 ns propagation delay for timing-sensitive applications within the 4000B series constraints. Verify pinout compatibility with existing PCB footprints designed for standard DIP-14 configurations.

Gates And Inverters - Multi-Function, Configurable Part Context

The CD4078BD belongs to the 4000/14000/40000 series of CMOS logic devices. Originally manufactured by Harris Semiconductor, these parts were integrated into Texas Instruments' portfolio following corporate acquisitions. The device serves as a versatile logic gate capable of implementing complex boolean functions through input configuration, distinguishing it from fixed-function gates in the same family.

Gates And Inverters - Multi-Function, Configurable Replacement Considerations

The CD4078BFMSR is a documented substitute part number offering similar functionality in a different package variant. Verify package dimensions and pin compatibility before substitution. Other members of the 4000B series may provide equivalent logical operations but differ in packaging and environmental ratings.