Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74SC540P found under Microcircuit Digita by Supertex. The National Stock Number assigned to this part is 5962012980060, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74SC540P.