Patent ID: 9589623
Date: 2017-03-07
CPC Classifications: G11C

Claim:
1. A word shift static random access memory (WS-SRAM) cell comprising: a static random access memory (SRAM) cell having a pair of cross-coupled elements to store data; a dynamic/static (D/S) mode selector to selectably switch the WS-SRAM cell between a dynamic storage mode and a static storage mode, the D/S mode selector comprising a switch to selectably couple and decouple the pair of cross-coupled elements of the SRAM cell; and a column selector to selectably determine whether or not the WS-SRAM cell accepts data shifted from an adjacent memory cell during the dynamic storage mode, wherein the dynamic storage mode corresponds to decoupled cross-coupled elements and the static storage mode corresponds to coupled cross-coupled elements; a load/store (L/S) coupler to selectably couple data from the adjacent memory cell into the WS-SRAM cell in conjunction with the column selector: wherein the D/SRAM cell is put into the dynamic storage mode and selectably coupled to the adjacent memory cell by activating the load/store coupler; wherein in response to activating the load/store coupler, the data is transferred from the adjacent memory cell into one of the cross-coupled elements of the memory cell, and the load/store coupler is deactivated and the memory cell is put into the static memory mode to retain the loaded data.