Back up power embodied non-volatile memory device

A back up power embodied non-volatile memory device, comprising:

• a connection port connected electrically to a host machine, wherein the host machine provides host data and power to the connection port through an external bus;
• a memory system for holding data from the connection port temporarily and writing the data into a non-volatile memory unit;
• and
• a power supply unit for providing back up power to the memory system so that the temporarily stored data is written into the non-volatile memory unit to become readable data if host power suddenly fails.

A back up power embodied non-volatile memory device, comprising:

• a connection port connected electrically to a host machine, wherein the host machine provides host data and power to the connection port through an external bus;
• a battery for providing back up power;
• a buffer unit for holding data from the connection port temporarily;
• a non-volatile memory unit;
• and
• a memory controller for scheduling the writing of data from the buffer unit to the non-volatile memory unit.

A back up power embodied non-volatile memory device, comprising:

• a connection port connected electrically to a host machine, wherein the host machine provides host data and power to the connection port through an external bus;
• a memory system for holding data from the connection port temporarily and writing the data into a non-volatile memory unit;
• and
• a power supply unit for providing back up power to the memory system if host power suddenly fails.