Canary based SRAM adaptive voltage scaling (AVS) architecture and canary cells for the same

摘要

A memory bank includes memory cells and an additional cell to determine an operating voltage of the memory bank. The additional cell has an operating margin that is less than a corresponding operating margin of the other memory cells in the memory bank.

主权项

1. A method comprising:
setting an operational voltage for a memory bank comprising memory cells and at least one additional cell, wherein at least one operating margin of the additional cell is less than a corresponding margin of a memory cell; said setting comprising:
adjusting a supply voltage;carrying out an operation in the at least one additional cell;checking if the operation was carried out successfully; andadjusting the supply voltage if the operation was carried out successfully.