Non-persistent unlock for secure memory

A method comprising:

• receiving, at a memory device, a command comprising an indication of an address of a memory array;
• determining, based at least in part on the indication in the command, that the address is within a protected region of the memory array as indicated by a protected region register;
• responsive to determining that the address is within the protected region, determining whether a first key associated with the command matches a second key stored in a key register of the memory device;
• responsive to determining that the first key matches the second key, setting a mode register to a first mode to enable a row driver;
• and
• responsive to enabling the row driver, setting the mode register to a second mode to disable the row driver.

A system, comprising:

• a host comprising a processing resource configured to execute an operating system (OS);
• and
• a memory device configured to:
• responsive to receiving an access command from the host, determine whether an address corresponding to the access command is in a protected region;
• responsive to determining that the address is in the protected region, determine whether a second key corresponding to the access command matches a first key stored in a key register of the memory device;
• responsive to determining that the second key matches the first key set a mode register to a first mode to enable a row driver;
• and
• responsive to determining that the second key does not match the first key, set the mode register to a second mode to disable the row driver.