	US 12,474,871 B2
	Memory module for performing one-time programmable (OTP) addressing operation to store unique ID of each memory device in an ID storge region of each memory device, and storage device including the same
Ki-Heung Kim, Suwon-si (KR); Taeyoung Oh, Suwon-si (KR); Taekwoon Kim, Suwon-si (KR); Jinseong Yun, Suwon-si (KR); Yoonjae Jeong, Suwon-si (KR); and Hyongryol Hwang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 28, 2024, as Appl. No. 18/590,324.
Claims priority of application No. 10-2023-0027347 (KR), filed on Feb. 28, 2023; and application No. 10-2023-0069866 (KR), filed on May 31, 2023.
Prior Publication US 2024/0289058 A1, Aug. 29, 2024
Int. Cl. G06F 3/06 (2006.01)

CPC G06F 3/0659 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0683 (2013.01)]

20 Claims

1. A method of operating a memory module that communicates with a memory controller, the method comprising:

entering a one-time programmable (OTP) addressing mode based on an OTP command received from the memory controller;

determining whether a guard key sequence is satisfied based on a plurality of mode register commands received from the memory controller;

entering an active state in response to an active command, and programming, based on a determination that the guard key sequence is satisfied, a unique identifier (ID), corresponding to a target memory device, into the target memory device, among a plurality of memory devices included in the memory module; and

in response to receiving a precharge command from the memory controller after the programming the unique ID into the target memory device is completed, releasing the active state.