Samsung Electronics Co., Ltd.

Hye-Won Shim

Dong-Uk Park

Sang-Woo Pae

Phil-Jae Jeon

Da Rae Ahn

A clock switch device includes a control circuit and a tri-state buffer. The control circuit deactivates an output enable signal when a frequency of a clock signal varies and activates the output enable signal when the frequency of the clock signal is maintained without change. The tri-state buffer maintains an output electrode at a high impedance state when the output enable signal is deactivated and buffers the clock signal and outputs the buffered clock signal through the output electrode as an output clock signal when the output enable signal is activated.

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Seoul, South Korea

Hye-Won Shim