What this 8-input NAND gate does on your board
The CD74HCT30E is a single 8-input NAND gate from the 74HCT family, designed to interface directly with TTL logic levels while running on a 5V rail. It accepts up to eight inputs and outputs a low when all inputs are high, making it useful for address decoding, enable generation, or combinational logic consolidation.
Temperature range and timing for harsh environments
The propagation delay is 28ns at 4.5V with a 50pF load, which keeps the signal path fast enough for most control and data acquisition logic running below 10 MHz. Quiescent current is a maximum of 2 µA, so the gate adds negligible static power draw to the rail — relevant for battery-backed or power-sensitive designs.
Package and lifecycle: active production, through-hole availability
It ships in a tube of 14-DIP (0.300", 7.62mm) packages, which is a standard through-hole footprint for prototyping, low-volume builds, or boards that avoid SMT for reliability reasons. ROHS3 compliance is confirmed, so it meets the latest EU restriction requirements for lead and other substances.