Semiconductor memory devices, methods of operating semiconductor memory devices and memory systems
AssigneeSamsung Electronics Co., Ltd.
InventorsKyung-Ryun KIM, Hyun-Chul YOON
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Abstract
A semiconductor memory device may include a memory cell array and an access control circuit. The memory cell array may include a first cell region and a second cell region. The access control circuit may access the first cell region and the second cell region differently in response to a command, an access address and fuse information to identify the first cell region and the second cell region. The command and the address may be provided from an external device.
Claims20
A semiconductor memory device comprising:
- a memory cell array comprising a first cell region and a second cell region;
- and
- an access control circuit configured to access the first cell region and the second cell region differently in response to a command, an access address and fuse information to identify the first cell region and the second cell region,
- wherein the command and the access address are provided from an external device.
A method of operating a semiconductor memory device, wherein the semiconductor memory device includes a memory cell array including a first cell region and a second cell region, the method comprising:
- receiving a command and an access address from an external device;
- determining whether the access address accesses the first cell region or the second cell region;
- accessing the first cell region and the second cell region differently based on the determining and fuse information to identify the first cell region and the second cell region.
A semiconductor memory device comprising:
- a memory cell array including a first cell region and a second cell region;
- and
- an access control circuit configured to determine to activate the first cell region and the second cell region simultaneously or to active one of the first cell region and the second cell region based on an access address and fuse information that identifies the first cell region and the second cell region.
Dependencies are inferred from the claim text.