Memory system

Abstract

According to one embodiment, a memory system is disclosed. The system includes a nonvolatile memory, a controller which controls the nonvolatile memory and to which a first voltage is supplied, and a circuit to which first and second signals from a host device are input, or the first signal is not input and the second signal is input from the host device, when the memory system is connected to the host device. The circuit converts a second voltage of the second signal into the first voltage when the first and second signal have the second voltage and the second voltage is lower than the first voltage, and does not convert a voltage of the second signal into the first voltage when the first signal is not input and the voltage of the second signal is the first voltage.

Dependencies are inferred from the claim text.