Apparatus and method for dynamically assigned aggressor detection

Abstract

Devices, systems, and methods for dynamically allocated aggressor detection. Memory may include aggressor address storage structures that track access patterns to row addresses and its associated row group addresses. These may be used to determine whether the row and group addresses received as part of the access operation are aggressor row and group addresses. The aggressor row address may be used to generate a refresh address for a bank identified by the aggressor bank address. Since the aggressor storage structure tracks row addresses and bank addresses, its storage space may be dynamically allocated between banks based on access patterns to those banks.

Description

technical field [0001] The present disclosure is directed to apparatus and methods for aggressor detection for dynamic allocation. Background technique [0002] The present disclosure relates generally to semiconductor devices, and more particularly, to semiconductor memory devices. In particular, the present disclosure relates to volatile memory, such as dynamic random access memory (DRAM). Information may be stored as physical signals on individual memory cells of the memory (eg, charge on capacitive elements). The memory may be volatile memory, and the physical signal may decay over time (which may degrade or destroy the information stored in the memory cells). It may be necessary to periodically refresh the information in the memory cells by, for example, overwriting the information to restore the physical signal to its original value. [0003] As the size of memory components has decreased, the density of memory cells has greatly increased. Various access patterns t...

AI Technical Summary

Problems solved by technology

However, tracking access to each address can be extremely memory intensive

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