Memory Protection Devices

• EEPROM Write Protect Switches: Prevent unintended writes to EEPROM.
• WP (Write Protect) Pins: Hardware pin to enable/disable memory writing.
• Flash Memory Controllers with Lock Bits: Use lock bits to secure flash regions.
• Supervisor/Coprocessor Watchdogs: Monitor access and prevent unauthorized changes.
• Voltage Supervisors (BOD - Brown-Out Detection): Prevent corruption during power instability.
• Secure Memory Controllers: Enforce access control, encryption, and tamper detection.
• Tamper-Detect Circuits: Wipe memory upon physical intrusion.
• MPUs (Memory Protection Units): Integrated in MCUs to define memory regions and access rights.

Used in embedded systems, industrial controls, and secure devices to ensure data integrity and security.