摘要:
An integrated circuit including a memory with an array of memory cells, each memory cell comprising a non-volatile memory element; and a limited read circuit communicatively coupled to the array of memory cells.
摘要:
A memory includes a first memory device including an array of phase changing memory cells. The first memory device is of a first memory type. The integrated circuit includes a second memory device including an array of phase changing memory cells. The second memory device is of a second memory type that is different than the first memory type. The first and second memory devices are packaged together into a single memory device.
摘要:
An integrated circuit memory device and a method of providing access to multiple memory types within a single integrated circuit memory device are described. In various embodiments, the integrated circuit memory device includes a non-volatile memory array having a first emulated memory region and a second emulated memory region, and a controller having an interface. The memory device is configured to emulate a first emulated memory type and a second emulated memory type. The memory device is further configured to store data in the first emulated memory region when the memory device emulates the first emulated memory type, and in the second emulated memory region when the memory device emulates the second emulated memory type.
摘要:
An integrated circuit includes memory segments, each having at least one memory cell configurable in first and second states to store data, and a controller that controls programming and erasing of the memory segments. The controller maps external memory addresses of write data to internal memory addresses of erased memory segments with no memory cells in the first state such that erased memory segments are programmed with write data. When a write access occurs for an external memory address previously mapped to an internal memory address of a programmed memory segment with at least one memory cell in the first state, the controller remaps the external memory address to another internal memory address of an erased memory segment. The controller identifies programmed memory segments to be erased and controls selective erasure of the identified programmed memory segments, such as programmed memory segments no longer mapped to an external memory address.
摘要:
An integrated circuit includes memory segments, each having at least one memory cell configurable in first and second states to store data, and a controller that controls programming and erasing of the memory segments. The controller maps external memory addresses of write data to internal memory addresses of erased memory segments with no memory cells in the first state such that erased memory segments are programmed with write data. When a write access occurs for an external memory address previously mapped to an internal memory address of a programmed memory segment with at least one memory cell in the first state, the controller remaps the external memory address to another internal memory address of an erased memory segment. The controller identifies programmed memory segments to be erased and controls selective erasure of the identified programmed memory segments, such as programmed memory segments no longer mapped to an external memory address.
摘要:
Integrated circuit with a parallel-serial converter The invention relates to an integrated circuit and method for time-offset provision of input data for a parallel-serial converter, in particular for or in a DDR semiconductor memory, having at least n input terminals at which at least n data packets are present in parallel, a delay device arranged in a manner connected downstream of the input terminals, at least some of the data packets present on the input side being output in time-offset fashion with respect to one another by said delay device, a parallel-serial converter arranged in a manner connected downstream of the delay device, which parallel-serial converter performs a conversion of the data packets that are present in parallel and are time-offset with respect to one another into an output data signal comprising the time-offset data packets in serial form, and an output terminal for outputting the output data signal.
摘要:
Register for the parallel-serial conversion of data having a plurality of cyclically driven shift registers (2), each comprising series-connected data holding elements (3), each data holding element (3) being connected to a data input line (5), each shift register (2), upon receiving an input control signal (INP) for the shift register (2), loading the data present on the data input lines (5) into the data holding elements (3) connected thereto; each shift register (2), upon receiving an output control signal (OUTP) for the shift register (2), outputting the datum buffer-stored in the last data holding element of the shift register (2), in which case there is connected downstream of each shift register (2) a further data holding element (10), which, upon receiving an input control signal (INP) for loading the preceding shift register (2), is preloaded with the datum for the first data holding element (3-3) of the shift register (2) and, upon reception of the output control signal (OUTP) for the shift register (2), outputs said preloaded datum to an output data line (22) via a data signal driver (18) for generating a serial output data stream with unambiguous data signal states.
摘要:
The method of operating an integrated circuit including the step of writing to a memory cell, which can assume a first and a second logical state and wherein a change from the second logical state to the first logical state lasts longer than a change from the first logical state to the second logical state, includes reading the logical state of the memory cell, changing, depending on the logical state of the memory cell read, the logical state to the first logical state or retaining the same in the first logical state and, depending on the logical state to be written, changing the logical state to the second logical state or retaining the same in the first logical state.
摘要:
A method of operating an integrated circuit is provided. The integrated circuit includes a plurality of resistivity changing memory cells and at least one resistivity changing reference cell; a voltage comparator including a first input terminal and a second input terminal; a signal line being connected to the plurality of resistivity changing memory cells, the at least one resistivity changing reference cell, and the second input terminal; and a switching element connecting the first input terminal to the second input terminal. The method includes: closing the switching element; supplying a first voltage to the first input terminal via the signal line and the switching element; opening the switching element; supplying a second voltage to the second input terminal via the signal line; and comparing the first voltage and the second voltage using the voltage comparator, wherein the first voltage represents a memory state of a resistivity changing memory cell, and the second voltage is a reference voltage which represents a memory state of a resistivity changing reference cell, or vice versa.
摘要:
The invention relates to a parallel-serial converter for converting parallel data into serial data, in particular for or in a DDR semiconductor memory, having at least n input terminals at which n data signals are present in parallel, an output terminal for outputting a serial data signal, a controllable latch connected to the input terminals on the input side, a common storage node, which is connected to outputs of the latch and which holds a data signal of the controllable latch present last, a controllable bypass device, which has an input, which is coupled to the storage node on the output side and which has a control terminal, via which a predeterminable state present at the input of the bypass device can be switched onto the storage node. The invention furthermore relates to a semiconductor memory having such a parallel-serial converter and to a method for operating such a parallel-serial converter.