US 12,266,423 B2
Semiconductor memory device and memory system
Akio Sugahara, Yokohama Kanagawa (JP)
Assigned to Kioxia Corporation, Tokyo (JP)
Filed by Kioxia Corporation, Tokyo (JP)
Filed on May 20, 2022, as Appl. No. 17/749,364.
Application 17/749,364 is a continuation of application No. PCT/JP2019/046916, filed on Nov. 29, 2019.
Prior Publication US 2022/0284935 A1, Sep. 8, 2022
Int. Cl. G11C 7/22 (2006.01); G11C 7/10 (2006.01); G11C 16/20 (2006.01)
CPC G11C 7/222 (2013.01) [G11C 7/1048 (2013.01); G11C 7/1063 (2013.01); G11C 7/109 (2013.01); G11C 16/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A semiconductor memory device comprising:
a NAND string;
a first storage circuit configured to store:
a first unique number uniquely assigned; and
a first chip address having a bit number smaller than that of the first unique number and used to identify the semiconductor memory device from other semiconductor memory devices; and
a first determination circuit configured to externally receive a first command set including a second unique number and a second chip address, and to write the second chip address to the first storage circuit as the first chip address when the second unique number matches the first unique number.