ELECTROMAGNETIC INTERFERENCE PROTECTION CIRCUIT FOR MEMORY, AND VEHICLE-MOUNTED ELECTRONIC DEVICE

摘要

An electromagnetic interference protection circuit for a memory, and a vehicle-mounted electronic device. During daily work, a protection unit (2) outputs a switch signal to control a memory (1) so that same is in a write-protection state, and when the content of the memory (1) needs to be updated on-line, the protection unit (2) outputs a switch signal to control the memory (1) so that same is in a non-write-protection state, so as to prevent the content of the memory (1) from being rewritten due to a severe electromagnetic interference environment and thus avoiding disorder caused to the content of the memory (1).