Flash memory device configured to switch wordline and initialization voltages

A flash memory device including a multi-level cell, comprising:

• a wordline voltage generating unit generating a plurality of wordline voltages having different corresponding voltage levels for read operations of a multi-level cell, the plurality of wordline voltages comprising a first wordline voltage having a first voltage level, a second wordline voltage having a second voltage level, and a third wordline voltage having a third voltage level higher than the first and second voltage levels;
• a switch unit receiving the plurality of wordline voltages from the wordline voltage generating unit and an initialization voltage, and selectively outputting each of the plurality of wordline voltages and the initialization voltage through sequential switching operations to read the multi-level cell during a current read cycle, the switch unit comprising a plurality of first switches, respectively connected between the plurality of wordline voltages and an output node, and a second switch, connected between the initialization voltage and the output node;
• and
• a row decoder for operating the wordline of the multi-level cell based on an output of the switch unit,
• wherein the initialization voltage is provided to the output node immediately after each of the second wordline voltage and the third wordline voltage is provided to the output node during the current read cycle.

A flash memory device, comprising:

• a wordline voltage generator generating a plurality of wordline voltages for reading a memory cell, the plurality of wordline voltages including a first through n-th wordline voltages having different voltage levels with each other;
• a plurality of first switches respectively receiving the plurality of wordline voltages from the wordline voltage generator to switch and output each of the plurality of wordline voltages to an output node during one read cycle;
• a second switch receiving an initialization voltage to switch and output the initialization voltage to the output node;
• and
• a row decoder being connected to the output node,
• wherein the initialization voltage is provided to the output node immediately after each of at least two wordline voltages is provided to the output node during the one read cycle.