Dual 4-input NOR gate in 14-DIP — what it is and where it fits
This part is rated across the full military temperature range, -55°C to 125°C. Typical applications include combinatorial logic gating, address decoding, and glitch-free enable/disable circuits where the NOR function simplifies the logic tree. The through-hole DIP package is prototyping-friendly and remains common in Mil/Aero repair and legacy control boards.
Supply range and temperature grade — what they mean for the BOM
The -55°C to 125°C operating temperature range is the full Mil-spec span.
Lifecycle and sourcing
The CD74HC4002E is listed as Active with ROHS3 compliance. It is a current-production part from Texas Instruments' 74HC line, available through independent distribution. For BOM planning, this part carries no near-term obsolescence risk.
