Flip-flop and semiconductor system including the same

    公开(公告)号:US10651828B2

    公开(公告)日:2020-05-12

    申请号:US15623412

    申请日:2017-06-15

    Abstract: A flip-flop generates a first feedback signal using a signal generated inside the flip-flop. The flip-flop includes a first stage circuit, a second stage circuit and a third stage circuit. The first stage circuit receives a first data signal and a clock signal and generates a first internal signal through a first node. The second stage circuit receives the first internal signal, the clock signal, and the first feedback signal and generates a second internal signal through a second node. The third stage circuit generates a second data signal by latching the second internal signal when the clock signal is at a first level, using the second internal signal and the clock signal. The second stage circuit cuts off at least one first current path between the second node and a power supply, based on the first feedback signal, when the clock signal is at a second level.

    Semiconductor circuit and method of operating the circuit

    公开(公告)号:US10587246B2

    公开(公告)日:2020-03-10

    申请号:US16212193

    申请日:2018-12-06

    Inventor: Min-Su Kim

    Abstract: Provided is a semiconductor circuit which includes a first circuit configured to determine a voltage level of a feedback node based on a voltage level of input data, a voltage level of a latch input node, and a voltage level of a clock signal, a second circuit configured to pre-charge the latch input node based on the voltage level of the clock signal, a third circuit configured to pull down the latch input node based on the voltage level of the feedback node and the voltage level of the clock signal, a latch configured to output output data based on the voltage level of the clock signal and the voltage level of the latch input node, and a control circuit included in at least one of the first to third circuits and the latch and configured to receive the control signal.

    Unbalanced multiplexer and scan flip-flops applying the same

    公开(公告)号:US10436836B2

    公开(公告)日:2019-10-08

    申请号:US15332305

    申请日:2016-10-24

    Inventor: Min-Su Kim

    Abstract: An unbalanced multiplexer and a scan flip-flop including the unbalanced multiplexer, wherein the unbalanced multiplexer includes a first transmission circuit transmitting a first input signal to an output terminal according to a logic state of a selection signal; and a second transmission circuit transmitting a second input signal to the output terminal according to the logic state of the selection signal. A delay characteristic of a first transmission path from a first input terminal to the output terminal along which the first input signal of the first transmission circuit is transmitted, and a delay characteristic of a second transmission path from a second input terminal to the output terminal along which the second input signal of the second transmission circuit is transmitted, are set differently.

    Multi-bit flip-flops
    15.
    发明授权

    公开(公告)号:US10353000B2

    公开(公告)日:2019-07-16

    申请号:US15479310

    申请日:2017-04-05

    Abstract: A multi-bit flip-flop includes: a single scan input pin to receive a scan input signal, a plurality of data input pins to receive first and second data input signals, a first scan flip-flop to select one of the scan input signal and the first data input signal as a first selection signal in response to a scan enable signal and to latch the first selection signal to provide a first output signal, a second scan flip-flop to select one of an internal signal corresponding to the first output signal and the second data input signal as a second selection signal in response to the scan enable signal and to latch the second selection signal to provide a second output signal, and a plurality of output pins to output the first and second output signals, wherein scan paths of the first and second scan flip-flops are connected to each other.

    Integrated circuit and electronic apparatus including integrated circuit

    公开(公告)号:US10184984B2

    公开(公告)日:2019-01-22

    申请号:US15140720

    申请日:2016-04-28

    Abstract: An integrated circuit and an electronic apparatus including the same. The electronic apparatus includes a scan input processing circuit, a selection circuit and a scanning circuit. The scan input processing unit is configured to output one of a scan input and a first logical value in response to a scan enable signal. The selection unit is configured to select one of an output of the scan input processing unit or a data input in response to the scan enable signal. The scan element comprises a flip-flop configured to store an output of the selection unit.

    METHOD OF OPERATING MEMORY DEVICE AND METHOD OF OPERATING MEMORY SYSTEM

    公开(公告)号:US20180151218A1

    公开(公告)日:2018-05-31

    申请号:US15691828

    申请日:2017-08-31

    Abstract: A method of operating a memory device, a first setting signal is received by a first memory device among a plurality of memory devices. The first memory device has a first storage capacity, and the memory devices may be connected to one another by a single channel. A second setting signal is received by a second memory device among the plurality of memory devices. The second memory device has a second storage capacity different from the first storage capacity. N refresh operations are performed by the first memory device based on a first refresh command and the first setting signal during a first refresh period. M refresh operations are performed by the second memory device based on a second refresh command and the second setting signal during a second refresh period. A duration of the second refresh period is substantially the same as a duration of the first refresh period.

    Integrated circuit including complex logic cell

    公开(公告)号:US10586809B2

    公开(公告)日:2020-03-10

    申请号:US16211496

    申请日:2018-12-06

    Abstract: An integrated circuit includes a complex logic cell. The complex logic cell includes a first logic circuit providing a first output signal from a first input signal group and a common input signal group, and a second logic circuit providing a second output signal from a second input signal group and the common input signal group. The first and second logic circuits respectively include first and second transistors formed from a gate electrode, the gate electrode extending in a first direction and receiving a first common input signal of the common input signal group.

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