Micron Technology, Inc.
CACHE ARCHITECTURES FOR MEMORY DEVICES

Abstract:

Methods, systems, and devices for cache architectures for memory devices are described. For example, a memory device may include a main array having a first set of memory cells, a cache having a second set of memory cells, and a cache delay register configured to store an indication of cache addresses associated with recently performed access operations. In some examples, the cache delay register may be operated as a first-in-first-out (FIFO) register of cache addresses, where a cache address associated with a performed access operation may be added to the beginning of the FIFO register, and a cache address at the end of the FIFO register may be purged. Information associated with access operations on the main array may be maintained in the cache, and accessed directly (e.g., without another accessing of the main array), at least as long as the cache address is present in the cache delay register.