Embedded memory device and memory controller including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsYounggeun LEE, Youngjin CHO, Hyun-Wook LEE, Junghyo WOO
Life of this patent
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Abstract
An embedded memory device includes a mask ROM including a plurality of mask ROM cells and an address decoder configured to decode an address of the plurality of mask ROM cells; and an e-fuse memory configured to replace a part of data stored in the mask ROM with replacement data, the e-fuse memory including, a plurality of e-fuse memory cells configured to store the replacement data, and an e-fuse address selector configured to decode an address of the plurality of e-fuse memory cells and to selectively cause data of one or more of the plurality of e-fuse memory cells to be output based on the decoding result.
Claims17
An embedded memory device, comprising:
- a mask ROM including a plurality of mask ROM cells and an address decoder configured to decode an address of the plurality of mask ROM cells;
- and
- an e-fuse memory configured to replace a part of data stored in the mask ROM with replacement data, the e-fuse memory including,
- a plurality of e-fuse memory cells configured to store the replacement data, and
- an e-fuse address selector configured to decode an address of the plurality of e-fuse memory cells and to selectively cause data of one or more of the plurality of e-fuse memory cells to be output based on the decoding result.
A memory controller comprising:
- an embedded memory device, the embedded memory device including,
- a mask ROM configured to store a firmware code;
- an e-fuse memory configured to replace a part of code data stored in the mask ROM with replacement data;
- and
- a plurality of multiplexers configured to receive code data from the mask ROM and the e-fuse memory and to selectively provide data of at least one of the mask ROM and data of the e-fuse memory.
An embedded memory device, comprising:
- a mask ROM configured to receive an address and output first data corresponding to the address;
- an e-fuse memory configured to receive the address, the e-fuse memory including,
- a plurality of data units, and
- an address selector configured to select, based on the address, at least one of the plurality of data units to output second data;
- and
- one or more multiplexers configured to receive the first data and the second data, and to output third data by replacing at least a portion of the first data with at least a portion of the second data.
Dependencies are inferred from the claim text.