US 11,887,642 B2
Storage control device, storage device, and information processing system
Atsuo Mangyo, Kanagawa (JP)
Assigned to Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Appl. No. 17/290,350
Filed by Sony Semiconductor Solutions Corporation, Kanagawa (JP)
PCT Filed Sep. 2, 2019, PCT No. PCT/JP2019/034349
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2020/095522, PCT Pub. Date May 14, 2020.
Claims priority of application No. 2018-209319 (JP), filed on Nov. 7, 2018.
Prior Publication US 2022/0005517 A1, Jan. 6, 2022
Int. Cl. G11C 7/14 (2006.01); G11C 11/4099 (2006.01); G11C 11/16 (2006.01)
CPC G11C 11/1675 (2013.01) [G11C 7/14 (2013.01); G11C 11/161 (2013.01); G11C 11/1673 (2013.01); G11C 11/1693 (2013.01); G11C 11/4099 (2013.01); G11C 11/1653 (2013.01); G11C 11/1659 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A storage control device comprising:
a state storage unit that stores, regarding each of a first reference cell that generates reference potential of a sense amplifier, the first reference cell included in a first memory cell array, and a second reference cell that generates reference potential of the sense amplifier, the second reference cell included in a second memory cell array, a state indicating certainty of a held value; and
a write control unit that controls, when write to either one of the first and second reference cells is instructed, the instructed write on a basis of the state regarding the first and second reference cells stored in the state storage unit.