摘要:
A memory controller includes a controller input/output circuit configured to output a first command to read first data, and output a second command to read an error corrected portion of the first data. A memory device includes: an error detector, a data storage circuit and an error correction circuit. The error detector is configured to detect a number of error bits in data read from a memory cell in response to a first command. The data storage circuit is configured to store the read data if the detected number of error bits is greater than or equal to a first threshold value. The error correction circuit is configured to correct the stored data.
摘要:
A memory core of a resistive type memory device includes at least a first resistive type memory cell coupled to a bit-line, a first resistance to voltage converter and a bit-line sense amplifier. The first resistance to voltage converter is coupled to the bit-line at a first node. The first resistance to voltage converter converts a resistance of the first resistive type memory cell to a corresponding voltage based on a read column selection signal. The bit-line sense amplifier is coupled to the bit-line at the first node and is coupled to a complementary bit-line at a second node. The bit-line sense amplifier senses and amplifies a voltage difference of the bit-line and the complementary bit-line in response to a sensing control signal.
摘要:
A semiconductor memory device is disclosed. The semiconductor memory device includes a memory array block, a first word line and a second word line. The memory array block includes a plurality of adjacent columns of memory cells, each column of memory cells including a plurality of consecutive memory cells having a plurality of respective consecutive cell transistors that comprise at least a first group of cell transistors and a second group of cell transistors. The first word line is disposed above the plurality of respective consecutive cell transistors and electrically connected to the first group of cell transistors, and the second word line is disposed below the plurality of respective consecutive cell transistors and electrically connected to the second group of cell transistors.
摘要:
A semiconductor memory device is disclosed. The semiconductor memory device includes a memory array block, a first word line and a second word line. The memory array block includes a plurality of adjacent columns of memory cells, each column of memory cells including a plurality of consecutive memory cells having a plurality of respective consecutive cell transistors that comprise at least a first group of cell transistors and a second group of cell transistors. The first word line is disposed above the plurality of respective consecutive cell transistors and electrically connected to the first group of cell transistors, and the second word line is disposed below the plurality of respective consecutive cell transistors and electrically connected to the second group of cell transistors.
摘要:
A memory device includes a plurality of memory blocks. Each memory block includes a plurality of bit lines, a plurality of word lines, a plurality of memory cells provided at intersections of the bit lines and word lines; a plurality of capacitors, and a plurality of sense amplifiers. Each sense amplifier has a first input and a second input. The first input is connected to a first bit line of a first one of the memory blocks and is coupled via one of the capacitors to a first bit line of a second one of the memory blocks. The second input of the input is connected to a second bit line of the second one of the memory blocks and is coupled via one of the capacitors to a second bit line of the first one of the memory blocks.
摘要:
A semiconductor memory device having a bit line sense amplifier connected to a bit line pair may include a precharge part to precharge first and second drive nodes of the bit line sense amplifier to an equal voltage level. The device may include a switching part operatively connecting the first and second precharge nodes to the first and second drive nodes in response to sense amplifier drive signals applied during a data non-access mode. To drive power in the bit line sense amplifier, the precharge voltage may be applied in a precharge state to precharge the first and second drive nodes to the equal voltage level, the device may shift from the precharge state to an operational state to cut off the applied precharge voltage, and driving voltages may be applied to the first and second drive nodes to power the bit line sense amplifier of the device.
摘要:
A method of operating a volatile memory device includes storing address information of weak cell rows. According to some examples, after writing to a weak cell row, a refresh operation is performed on the weak cell row within a predetermined time. According to some examples, the writing operation to a weak cell row may be performed with a longer write recovery time than a write recovery time to normal cell rows.
摘要:
A memory device includes a plurality of memory blocks. Each memory block includes a plurality of bit lines, a plurality of word lines, a plurality of memory cells provided at intersections of the bit lines and word lines; a plurality of capacitors, and a plurality of sense amplifiers. Each sense amplifier has a first input and a second input. The first input is connected to a first bit line of a first one of the memory blocks and is coupled via one of the capacitors to a first bit line of a second one of the memory blocks. The second input of the input is connected to a second bit line of the second one of the memory blocks and is coupled via one of the capacitors to a second bit line of the first one of the memory blocks.