Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SNJ54LS257AJ found under Microcircuit Digital by Texas Instruments Inc. The National Stock Number assigned to this part is 5962012385522, 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 SNJ54LS257AJ.