Local bit line pairs in a domino SRAM include an amplifier to amplify the
voltage differential across the bit lines during a read operation if a
cell in the local group of cells has been identified as a slow to read
cell. The amplifier includes a transistor switch that is turned on by a
timing pulse during the read operation, but only if the Array Built In
Self-Test (ABIST) has detected a slow to read cell in the local group. If
there is no slow cell, the amplifier is not activated, and the domino
read operation is carried out. The amplifier can be used globally across
the SRAM or selectively in certain sub-arrays.