Active lifecycle — no BOM risk from obsolescence
The MC74VHC02DR2G: ROHS3 compliance is confirmed, so the part meets the EU RoHS exemption-free requirements for lead, mercury, and other restricted substances — no regulatory rework needed for builds shipping into Europe or other RoHS-regulated markets.
Quad 2-input NOR — logic function and timing
Four independent 2-input NOR gates in a single 14-SOIC package. Each gate implements the NOR function (output LOW when any input is HIGH), which is the universal logic building block for combinational and glue logic — a single part can replace multiple discrete transistors or diodes in a pull-down or latch circuit. The 7.5 ns max propagation delay at 5 V, 50 pF load means the gate can pass a 66 MHz clock edge with margin — sufficient for most control and data-path timing in industrial and consumer boards. Input logic levels are 0.5 V low and 1.5 V high at 5 V supply, compatible with standard CMOS and TTL thresholds. Output drive is 8 mA sink and source — enough to fan out to four standard CMOS loads or drive a small LED indicator directly. Quiescent current is 2 µA max, keeping the static power draw negligible in battery-powered or always-on circuits.
14-SOIC package — standard footprint for assembly
Housed in a 14-SOIC (0.154-inch width, 3.90 mm body width) — the industry-standard small-outline package for 14-pin logic. Surface-mount assembly with a 1.27 mm pitch, compatible with reflow profiles for lead-free solder per J-STD-020. Both are stocked through distribution channels.
The MC74VHC02DR2G is an active, widely available standard logic part. Sourcing is straightforward through authorized distribution or independent channels — no allocation risk, no last-time-buy deadline.