摘要:
The present disclosure includes apparatuses and methods related to shifting data. A number of embodiments include an apparatus comprising pre-charge lines and n-channel transistors without complementary p-channel transistors. A number of embodiments include a method comprising shifting data by pre-charging nodes with an operating voltage.
摘要:
A semiconductor memory apparatus may include a data storage region, a pipe register group, and an output driver. The data storage region may store data and output stored data as pipe input data. The pipe register group may include a plurality of pipe registers. In response to a plurality of coupling enable signals, a plurality of pipe input signals and a plurality of pipe output signals, the pipe register group may determine a number of pipe registers receiving the pipe input data and outputting pipe output data. The output driver may drive the pipe output data and transmit output data.
摘要:
A memory device can include at least one array comprising a plurality of elements programmable between at least two different states, each state having a different time to a change in property under applied sense conditions; a read circuit configured to apply the sense conditions to selected elements and detect changes in property of the selected elements to generate read data; a latch circuit configured to store read data from the read circuit; and a transfer path configured to provide a parallel data transfer path between the read circuit and the latch circuit.
摘要:
In managing incoming bus traffic storage for store cell memory (SCM) in a sequential-write, random-read system, a priority encoder system can be used to find a next empty cell in the sequential-write step. Each cell in the SCM has a bit that indicates whether the cell is full or empty. The priority encoder encodes the next empty cell using these bits and the current write pointer. The priority encoder can also find next group of empty cells by being coupled to AND operators that are coupled to each group of cells. Further, a cell locator selector selects a next empty cell location among priority encoders for cell groups of various sizes according to an opcode by appending ‘0’s to cell locations outputs from priority encoders that are smaller than the size of the SCM.
摘要:
In managing incoming bus traffic storage for store cell memory (SCM) in a sequential-write, random-read system, a priority encoder system can be used to find a next empty cell in the sequential-write step. Each cell in the SCM has a bit that indicates whether the cell is full or empty. The priority encoder encodes the next empty cell using these bits and the current write pointer. The priority encoder can also find next group of empty cells by being coupled to AND operators that are coupled to each group of cells. Further, a cell locator selector selects a next empty cell location among priority encoders for cell groups of various sizes according to an opcode by appending ‘0’s to cell locations outputs from priority encoders that are smaller than the size of the SCM.
摘要:
Techniques are disclosed relating to buffer circuits. In one embodiment, a buffer circuit is disclosed that includes memory unit and an output register. The memory unit is configured to store a plurality of buffer entries and a first pointer to a current one of the plurality of buffer entries. The output register is coupled to an output of the memory unit. The buffer circuit is configured to perform a read operation by outputting a current value of the output register and storing a value of the current buffer entry in the output register. The buffer circuit is configured to update the first pointer in response to the read operation.
摘要:
Provided is a read circuit for a semiconductor memory device which may have a reduced circuit scale, and a semiconductor memory device. In a plurality of sense amplifiers of the read circuit of the semiconductor memory device, for serially reading data from a serial output terminal, if a number of byte selectors which may be selected to determine an address at a predetermined time before determination of the address is four, only four sense amplifiers are required in total, and hence the read circuit and the semiconductor memory device are reduced in circuit scale.
摘要:
A resistance variable memory device includes a resistance variable memory cell array, a data register that prefetches read data of the resistance variable memory cell array, a data output unit that receives the prefetched read data from the data register and outputs the received data, and a page mode setting unit that sets one of a first page mode and a second page mode as a page mode. In the first page mode, the data output unit sequentially reads the read data prefetched in the data register as page addresses are sequentially received, and in the second page mode, the data output unit sequentially reads the read data prefetched in the data register after a start page address among a plurality of page addresses has been received.
摘要:
Selecting circuits for columns of an array of memory cells are used to hold read data or write data of the memory cells. In a first set of embodiments, a shift register chain, having a stage for columns of the array, has the columns arranged in a loop. For example, every other column or column group could be assessed as the pointer moves in first direction across the array, with the other half of the columns being accessed as the pointer moves back in the other direction. Another set of embodiments divides the columns into two groups and uses a pair of interleaved pointers, one for each set of columns, clocked at half speed. To control the access of the two sets, each of which is connected to a corresponding intermediate data bus. The intermediate data buses are then attached to a combined data bus, clocked at full speed.
摘要:
Methods and apparatus are disclosed, such as those involving a solid state memory device. One such method includes selecting a plurality of memory cells in a memory array. States of a plurality of data bits stored in the selected plurality of memory cells are determined. In determining the states of the plurality of data bits, a portion of the plurality of data bits are sensed faster than others. The plurality of data bits are sequentially provided as an output. In one embodiment, the portion of the plurality of data bits includes the first bit of the sequential output of the memory device.