摘要:
A data receiving stage circuit of a memory circuit receives a serial input signal and a chip enable signal. A data writing circuit of the memory circuit generates at least one of a command signal and a data signal according to the serial input signal. A power supply circuit of the memory circuit generates an operating voltage for a memory cell array to perform a data access operation. A data output stage circuit of the memory circuit outputs a readout data. A controller of the memory circuit performs a switching operation of an operating state of the memory circuit according to a change of the chip enable signal. The controller determines a disable or enable state of the data receiving stage circuit, the data writing circuit, the power supply circuit, and the data output stage circuit according to the operating state.
摘要:
A memory device comprises an output buffer and a control circuit. The control circuit is configured to receive a system clock signal at an input of the control circuit. The control circuit is configured to generate a data transition signal based on the system clock signal. The control circuit is configured to provide the data transition signal to the output buffer of the memory device. The output buffer is configured to output memory data based on the data transition signal.
摘要:
One aspect of the technology is an integrated circuit, comprising a bias circuit and a sense amplifier. The bias circuit has a diode-connected transistor and a first bias voltage. The first bias voltage is represented by a first term inversely dependent on a first mobility of charge carriers of the diode-connected transistor and inversely dependent on a first gate-to-channel dielectric capacitance of the diode-connected transistor. The sense amplifier is coupled to another transistor that has a gate coupled to the first bias voltage of the bias circuit.
摘要:
A read operation for a memory device is provided. A selected word line, first and second global bit line groups and a selected first bit line group are precharged. A first cell current flowing through the selected word line, the first and the selected first bit line groups is generated. A first reference current flowing through the second global bit line group is generated. A first half page data is read based on the first cell current and the first reference current. The selected word line, the first and the second global bit line groups are kept precharged.
摘要:
Techniques are described herein for detecting and recovering over-erased memory cells in a flash memory device. In one embodiment, a flash memory device includes a memory array including a plurality of blocks of memory cells. The device also includes a command interface to receive a command from a source external to the memory device. The device also includes a controller including logic to perform a leakage-suppression process in response to the command. The leakage-suppression process includes performing a soft program operation to increase a threshold voltage of one or more over-erased memory cells in a given block of memory cells and establish an erased state.
摘要:
Systems, methods, circuits, and devices for managing data transfers in semiconductor devices are provided. In one aspect, an integrated circuit includes: a first interface for receiving higher-speed-type data, a second interface for receiving lower-speed-type data, a first logic circuit coupled to the first interface, a second logic circuit coupled to the second interface, and a driving circuit separately coupled to the first logic circuit and the second logic circuit. The first data interface, the first logic circuit, and the driving circuit are arranged in series to form a first data path for transferring the higher-speed-type data with a first speed. The second data interface, the second logic circuit, and the driving circuit are arranged in series to form a second data path for transferring the lower-speed-type data with a second speed. The first speed is higher the second speed.
摘要:
A multi-die memory apparatus and identification method thereof are provided. The identification method includes: sending an identification initial command and a first start command to a plurality of memory devices by a controller for starting a first identification period; respectively generating a plurality of first target numbers by the memory devices; respectively performing first counting actions and comparing a plurality of first counting numbers with the first target numbers by a plurality of un-identified memory devices to set a first time-up memory device of the memory devices; and, setting an identification code of the first time-up memory device of the un-identified memory devices to be a first value.
摘要:
Provided is a memory device including: a memory array, including a flag memory array having a plurality of flag memory cells and a data memory array having a plurality of data memory cells, the corresponding flag memory cells being used to record whether the corresponding data memory cells have been written or not. In initialization, the flag memory array is initialized by the control circuit but the data memory array is not initialized.
摘要:
A memory device includes command logic allowing for a command protocol allowing interruption of a first command sequence, such as a page write sequence, and then to proceed directly to receive and decode a second command sequence, such as a read sequence, without latency associated, completing the first command sequence. Also, the command logic is configured to be responsive to a third command sequence after the second command sequence and its associated embedded operation have been completed, which completes the interrupted first command sequence and enables execution of an embedded operation identified by the first command sequence. A memory controller supporting such protocols is described.
摘要:
An output circuit includes: an output switch including a gate terminal, a drain terminal coupled to an external I/O bus, and a well terminal; a well control circuit, having a well terminal coupled to the well terminal of the output switch, to maintain a well voltage of the output switch at a level not less than a greater of a first voltage and a second voltage; and a gate control circuit coupled to the gate terminal and a the drain terminal of the output switch and to the external I/O bus, and operable to turn off the output switch, to prevent current flow through the output switch from the external I/O bus when an operating voltage of the output circuit is not applied to the output switch, and a bus voltage from an external device is present on the external I/O bus.