F54S153DM

Military Version: F54S20 - High-Speed Dual 4-Input NAND Gate: Features two separate logic gates that require four high inputs simultaneously to produce a low output signal. It is manufactured with high-speed Schottky technology to provide incredibly sharp, rapid voltage transitions, ensuring that critical multi-line timing signals are processed instantly without delaying the rest of the circuit - NTE Commercial Equivalent: NTE74S20