What this part is and where it fits
The SN74AS1804N is a NAND gate. It performs the Boolean function Y = NOT (A AND B).
Sourcing and lifecycle
The SN74AS1804N carries an Active product status and is RoHS non-compliant. For designs that can accept tin-lead finish (legacy mil/aero, high-reliability solder joints, or repair depots), it's a straightforward procurement.
