The SN74LS27DR is a triple 3-input NOR gate from Texas Instruments' 74LS low-power Schottky logic family. It integrates three independent NOR gates, each with three inputs, in a single 14-SOIC package. Quiescent current maxes at 4 mA, and output drive capability is 400 µA sourcing and 8 mA sinking per output. Propagation delay is 15 ns typical at 5 V with a 15 pF load. Input logic thresholds are TTL-compatible: low at 0.8 V max, high at 2 V min.
Sourcing and availability
This part is sourced through independent distribution channels. No stock-holding claim is made; each order is quoted to the buyer's BOM quantity. For volume purchases or scheduled deliveries, submit an RFQ with target quantity and required date. The part is not subject to last-time-buy or end-of-life constraints as of the current lifecycle status.