Patent ID: 11955178
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A memory system comprising:
a nonvolatile memory; and
a controller that controls writing and reading of data to and from the nonvolatile memory, wherein
the nonvolatile memory includes
a plurality of strings connected to a first wiring and connected to a plurality of second wirings,
the string has one end connected to the first wiring and includes a plurality of transistors being connected to each other, each of gates of the plurality of transistors being connected to corresponding one of the second wirings,
the plurality of transistors include a first transistor and a second transistor, the first transistor being set to a first threshold according to first data, and the second transistor being set to a second threshold according to second data in a complement relationship with the first data,
two second wirings of the plurality of second wirings are connected to gates of the first transistor and the second transistor, and
one of the two second wirings is set to a potential level corresponding to third data, and another of the two second wirings is set to a potential level corresponding to fourth data in a complement relationship with the third data.