US Patent 10388388 Responding to power loss

Apparatus, and methods of operating similar apparatus, might include an array of memory cells and a differential storage device configured to receive information indicative of a data value stored in a particular memory cell of the array of memory cells selected for a programming operation. The differential storage device might include a first non-volatile memory cell connected between a first isolation gate and a voltage node configured to receive a first voltage level, and a second non-volatile memory cell connected between a second isolation gate and the voltage node, and logic responsive to an indication of a loss of power to the apparatus and the information indicative of the data value stored in the particular memory cell to store data to the differential storage device, wherein a gate of the second non-volatile memory cell is connected to a gate of the first non-volatile memory cell.