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US 12,640,217 B2Granted
Apparatuses systems and methods for identification encoding for memory devices
AssigneeMicron Technology, Inc.
InventorMatthew A. Prather
Life of this patent
Estimating the term…
Abstract
Memory devices may be assigned enumeration values that uniquely identify the memory devices in a multi-memory device system. In some examples, the enumeration value is assigned by programming one or more fuses in the memory device. In some examples, a post-package repair operation may be used to program the fuses.
Claims19
A memory device comprising:
- a fuse array comprising a plurality of fuses configured to store an enumeration value of the memory device;
- a post-package repair (PPR) circuit configured to program the plurality of fuses with the enumeration value;
- a mode register configured to store values associated with enabling and disabling a plurality of operation modes of the memory device, wherein the plurality of operation modes includes an enumerated command mode and an enumeration value programming mode.
A memory device comprising:
- a fuse array comprising a plurality of fuses configured to store an enumeration value of the memory device;
- a post-package repair (PPR) circuit configured to program the plurality of fuses with the enumeration value;
- and
- a command decoder configured to receive commands and enumeration values and compare the enumeration values to the enumeration value stored in the fuse array.
1 more element
A method comprising:
- providing a mode register write command to a memory device to cause a value to be written to the mode register to enable an enumeration value programming mode;
- providing an enumeration value programming command;
- and
- providing an enumeration value to be programmed to the memory device.
1 more element
A method comprising:
- receiving a mode register write command at a memory device from a controller;
- writing a value to the mode register responsive to the command;
- enabling an enumeration value programming mode;
- receiving an enumeration value programming command;
- receiving an enumeration value;
- and
- writing the enumeration value to a fuse array responsive to the enumeration value programming command.
4 more elements
Dependencies are inferred from the claim text.