Invention Grant
US08730757B2 Memory system 有权
内存系统

Memory system
Abstract:
According to one embodiment, a memory system includes a first semiconductor memory and a controller. The first semiconductor memory receives a first clock, and outputs, in accordance with the first clock, a second clock and a data signal in synchronization with the second clock. The controller includes a detection circuit which detects a shift of a duty ratio of the second clock which is output from the first semiconductor memory. The controller also includes an adjustment circuit which adjusts a duty ratio of the first clock based on the shift detected by the detection circuit.
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