摘要:
A semiconductor memory device includes a memory cell array, a controller, and a data input/output (I/O) unit. The memory cell array includes a plurality of memory cells and is configured to store data. The controller is configured to enable a write clock signal in response to an active command when a write latency of the semiconductor device is less than a reference write latency and disable the write clock signal during a disabling period in which read data is output from the semiconductor device. The data I/O unit is configured to receive data in response to the write clock signal and output the data to the memory cell array.
摘要:
A semiconductor memory device includes a memory cell array, an address control unit and a logic circuit. The memory cell array includes a plurality of banks which are divided into a first bank block and a second bank block. The address control unit accesses the memory cell array. The logic circuit controls the address control unit based on a command and an address signal such that the first and second bank blocks commonly operate in a first operation mode, and the first and second bank blocks individually operate in a second operation mode.
摘要:
Embodiments may be directed to a method of operating a semiconductor device, the method including receiving a first write training command, receiving a first write data responsive to the first write training command through a first data line, and transmitting the first write data through a second data line. Transmitting the first write data is performed without an additional training command.
摘要:
An on-die termination circuit includes a termination resistor unit connected to an external pin, and a termination control unit connected to the termination resistor unit. The termination resistor unit provides termination impedance to a transmission line connected to the external pin. The termination control unit varies the termination impedance in response to a plurality of bits of strength code associated with a data rate.
摘要:
A method of tuning a phase of a clock signal includes performing data training on a plurality of data pins through which data are input and output, in synchronization with a data clock signal; determining one of the data pins to be a representative pin; performing clock and data recovery (CDR) on read data of the representative pin; and adjusting a phase of the data clock signal based on the CDR.
摘要:
A memory system includes a memory controller and a memory device. The memory device exchanges data through a first channel with the memory controller, exchanges a first cyclic redundancy check (CRC) code associated with the data through a second channel with the memory controller, and receives a command/address packet including a second CRC code associated with a command/address from the memory controller through a third channel.
摘要:
Integrated circuit memory devices include an internal command generator and a memory control circuit responsive to an internal command generated by the internal command generator. The internal command generator is configured to generate an internal command in response to a combination of an independent command and at least one dependent command received in sequence by the memory device. For example, the internal command generator may be configured to require the independent command to follow the at least one dependent command in the sequence when generating the internal command from the combination of the independent and dependent commands. Alternatively, the internal command generator may be configured to require the independent command to precede the at least one dependent command in the sequence before generating the internal command from the combination of the independent and dependent commands. These independent and dependent commands may be received by the memory device as respective multi-bit external command signals.
摘要:
Embodiments may be directed to a method of operating a semiconductor device, the method including receiving a first write training command, receiving a first write data responsive to the first write training command through a first data line, and transmitting the first write data through a second data line. Transmitting the first write data is performed without an additional training command.
摘要:
A stacked semiconductor memory device according to the inventive concepts may include a plurality of memory chips stacked above a processor chip, a plurality of TSVs, and I/O buffers. The TSVs may pass through the memory chips and are connected to the processor chip. I/O buffers may be coupled between all or part of the memory chips and the TSVs and may be selectively activated on the basis of defective states of the TSVs.
摘要翻译:根据本发明构思的叠层半导体存储器件可以包括堆叠在处理器芯片上方的多个存储器芯片,多个TSV和I / O缓冲器。 TSV可以通过存储器芯片并且连接到处理器芯片。 I / O缓冲器可以耦合在所有或部分存储器芯片和TSV之间,并且可以基于TSV的故障状态来选择性地激活。
摘要:
A method of tuning a phase of a clock signal includes performing data training on a plurality of data pins through which data are input and output, in synchronization with a data clock signal; determining one of the data pins to be a representative pin; performing clock and data recovery (CDR) on read data of the representative pin; and adjusting a phase of the data clock signal based on the CDR.