Abstract:
A non-volatile memory device according to one example embodiment of the present invention includes a page buffer configured to have a first register for receiving data and storing temporarily the received data to be inputted to a pair of first bit lines, a second register coupled selectively to the first register and for storing temporarily data to be inputted to a pair of second bit lines, and a third register for storing temporarily specific data in accordance with a level of the data stored in the first register; a first bit line selecting circuit configured to couple selectively a given bit line of the first bit lines to the first register; and a second bit line selecting circuit configured to couple selectively a certain bit line of the second bit lines to the second register.
Abstract:
The present disclosure relates to a semiconductor memory device and a method of operation the semiconductor memory device, which sets an encoding value by sequentially defining ranges used for recognizing distribution of memory cells based on a middle range and then performing a read operation in an order from the middle ranges to an outermost range, thereby capable of using infinite ranges for recognizing the distribution of the memory cells without addition of a circuit to an inside of the semiconductor memory device.
Abstract:
A programming method for a nonvolatile memory device includes inputting least significant bit (LSB) data and most significant bit (MSB) data to each of different latches of a page buffer and in the state in which the LSB data and the MSB data have been inputted to the page buffer, performing a programming operation until threshold voltages of selected memory cells reach a target voltage on the basis of the LSB data and the MSB data.
Abstract:
A nonvolatile memory device includes a plurality of memory blocks each configured to include a plurality of pages, a plurality of page buffers configured to correspond to the plurality of memory blocks and send copyback data, a controller configured to send the copyback data to a page buffer selected from among the page buffers, and a register configured to store an address of a page that has been failed, from among the pages, during a copyback program operation.
Abstract:
A nonvolatile memory device is operated by receiving a dual plane read command for simultaneously reading first and second planes, each comprising memory cells, receiving an MSB read address for reading data stored in the memory cells, checking whether an MSB program operation has been performed on each of the first and second planes, and performing the read operation on the first and second planes according to a result of the check and outputting the read data.
Abstract:
A method of operating a non-volatile memory device reduces a time for discharging a precharged voltage when a program operation or a read operation is performed, thereby decreasing a total operation time of the non-volatile memory device. The non-volatile memory device discharges a bit line and a word line using only a control signal without reading an algorithm block when a precharged voltage is discharged. The method of operating a non-volatile memory device includes detecting an operation command; generating algorithm blocks for generating an operation voltage, for precharging a bit line and a word line, and for performing a specific operation in accordance with the operation command; outputting a discharge enable control signal for the bit line and the word line; and reading an algorithm of turning off and discharging a voltage generating means for generating the operation voltage.