STORAGE DEVICE CONFIGURED TO CHANGE POWER STATE BASED ON REFERENCE CLOCK FROM HOST DEVICE AND METHOD FOR OPERATING THE SAME

    公开(公告)号:US20210216223A1

    公开(公告)日:2021-07-15

    申请号:US17142627

    申请日:2021-01-06

    Abstract: Disclosed is a storage device which includes an interface circuit that exchanges data with a host device, and a power management unit that supplies a power to the interface circuit. The interface circuit includes a first input terminal receiving a first signal from the host device, a second input terminal receiving a second signal complementary to the first signal from the host device, a receive module processing the first signal and the second signal, a squelch circuit detecting levels of the first signal and the second signal, and a reference clock detector detecting whether a reference clock for operating the storage device is received. The power management unit selectively supplies a power to the squelch circuit based on a result of the detection by the reference clock detector.

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