Common die implementation for memory devices with independent interface paths
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Sep 25, 2015
filing date -
May 19, 2015
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Abstract
A memory device includes at least two independent interface paths, an interface path including multiple memory banks. The memory device can selectively operate in a bank mode or a bank group mode. In bank mode, banks are operated as logical banks, where separate physical banks from different interface paths operate in parallel. When a logic bank is accessed, all physical banks belonging to the logical bank are accessed in parallel across the interface paths. In bank group mode, banks are operated independently, but accessed in bank groups. A separate interface path is operated as an independent bank group, and a bank is individually accessed in its bank group. In bank group mode, back to back access to separate bank groups is possible without resulting in access delay.
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