公开(公告)号：US10176882B1

公开(公告)日：2019-01-08

申请号：US15636778

申请日：2017-06-29

Applicant: Cisco Technology, Inc.

Inventor： Tzachy Reinman ,  Tsion Shamay ,  Yair Fodor

IPC: G11C17/00 ,  G11C17/16 ,  G11C17/18 ,  H01L27/112 ,  G11C16/10 ,  G11C16/26 ,  G11C7/12

Abstract: In one embodiment, an apparatus includes a non-volatile memory, a one-time programmable (OTP) memory, and a processor operative to write data values to the non-volatile memory and then initiate programming of a first bit of the OTP memory, the first bit being associated with locking the non-volatile memory from further data being written thereto, and after the non-volatile memory has been locked from further data being written thereto, initiate programming of the second bit of the OTP memory in order to lock the non-volatile memory from further data being erased therefrom.