Quad NAND gate in 14-SSOP – BOM-fit parametrics
The SN74AHCT00DBR: The 7.9 ns maximum propagation delay at 5 V with a 50 pF load sets the timing budget for the data path. With 8 mA symmetric output drive (source and sink), it can directly switch standard CMOS and TTL inputs without a buffer stage. Quiescent current is 2 µA maximum, making it suitable for power-sensitive logic sections where the NAND function is used intermittently. The input thresholds are TTL-compatible: low at 0.8 V, high at 2 V, so it interfaces directly with 5 V TTL logic families without level translation.
Package, footprint, and temperature grade
The 14-SSOP package (supplier device package 14-SSOP) has a 0.209-inch body width and 5.30 mm width, with 1.27 mm pitch. The surface-mount footprint matches standard SSOP-14 land patterns; the 0.65 mm lead pitch requires no special routing beyond typical 4-layer board clearance rules for signal traces. The device is rated for continuous operation across this full range without derating the 8 mA output drive. ROHS3 compliant per the lifecycle record, with no exemptions that would restrict EU or UKCA market placement. No AEC-Q automotive qualification is listed, so it is intended for commercial/industrial use rather than under-hood or chassis-domain applications.
Active lifecycle – no obsolescence watch needed
The 74AHCT series is a mature logic family with broad second-source availability across the industry. While TI is the listed brand, functionally equivalent quad NAND gates in 14-SSOP from other manufacturers exist for BOM hedging if needed.