13189402

Paragraph Number

148

For example, in one embodiment, MLC storage cells that store two bits may have three read voltage thresholds, separating binary values of 11, 01, 00, and 10. The three example read voltage thresholds may be x volts, y volts, and z volts, described in greater detail below with regard to the read voltage thresholds 662 of FIG. 6C. If the voltage read from a storage cell falls between Vmin and x volts, a binary 11 state is indicated. In certain embodiments, Vmin may be a negative voltage. If the voltage read from a storage cell falls between x volts and y volts, a binary 01 state is indicated. If the voltage read from a storage cell falls between y volts and z volts, a binary 00 state is indicated. If the voltage read from a storage cell falls between z volts and Vmax volts, a binary 10 state is indicated.

Added by DJM 3 2021