Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UPB8284AD found under Microcircuit Digital by Nec Electronics Usa Inc. The National Stock Number assigned to this part is 5962011216441, 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 UPB8284AD.