That Schmitt-trigger front end is the headline feature: it takes a noisy, slow, or bouncing signal — think a mechanical switch, a long unshielded cable, or a sensor output with slow edges — and produces a clean logic output without external hysteresis components. The part operates across a 2V to 6V supply range, so it sits comfortably on either a 3.3V or 5V rail without a level translator. The 14-TSSOP package (4.40 mm width) is a common footprint for board-level glue logic; the 7.8 mA output drive is enough to fan out to a few CMOS loads or drive a small LED through a resistor.
12 ns propagation delay — what it means for timing
The maximum propagation delay is 12 ns at 6V supply with a 50 pF load.
Texas Instruments continues to manufacture the 74HCS series as a mainstream logic family. No successor or second-source alternate is listed in the evidence, but the part is widely available through independent distribution. If you need a second-source NAND gate, the SN74LV00APWR is a 74LV-series quad NAND with a narrower temperature range (85°C) and no Schmitt trigger, so verify the application first.
No stock or lead-time numbers are published here because the market moves daily, but the part is active and in regular production — not a hard-to-find or end-of-life item. Submit an RFQ for your target quantity and we will return a firm price and delivery window.