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US 12,007,912 B2Granted
NAND page buffer based security operations
AssigneeMicron Technology, Inc.
InventorsJeremy Binfet, Lance Walker Dover, Tommaso Vali, Walter Di Francesco
Life of this patent
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Abstract
In some implementations, a memory device may resolve a set of latches of a NAND page buffer to a set of initialized values. The memory device may obtain a NAND page buffer initialized data set from the set of initialized values of the set of latches. The memory device may generate a security key using the NAND page buffer initialized data set.
Claims30
A method, comprising:
- resolving a set of latches of a NAND page buffer to a set of initialized values, wherein resolving the set of latches to the set of initialized values is based on:
- enabling set voltage sources and reset voltage sources of data nodes associated with the set of latches;
- and
- disabling the set voltage sources and the reset voltage sources;
- obtaining a NAND page buffer initialized data set from the set of initialized values of the set of latches;
- and
- generating a security key using the NAND page buffer initialized data set.
4 more elements
A device, comprising:
- a NAND page buffer, comprising:
- a set of static random access memory (SRAM) latches,
- wherein an SRAM latch, of the set of SRAM latches, includes a first enable control associated with a first inverter and a second enable control associated with a second inverter;
- and
- a controller configured to:
- control the set of SRAM latches to cause the set of SRAM latches to resolve to a set of initialized values based on enabling set voltage sources and reset voltage sources concurrently for each latch of the set of latches;
- obtain the set of initialized values from the set of SRAM latches;
- and
- output the set of initialized values.
6 more elements
An apparatus, comprising:
- means for initializing a set of data caches of a latch of a data node of a NAND page buffer;
- means for resolving the latch of the data node of the NAND page buffer to an initialized value based on:
- enabling a set voltage source and a reset voltage source of the data node;
- and
- disabling the set voltage source and the reset voltage source;
- and
- means for obtaining a NAND page buffer initialized data set comprising a set of initialized values for a set of data nodes of the NAND page buffer, wherein the set of initialized values includes the initialized value.
4 more elements
Dependencies are inferred from the claim text.