Semiconductor devices and semiconductor systems
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United States of America Patent
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Oct 31, 2017
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app pub date -
Dec 21, 2015
filing date -
Sep 8, 2015
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Abstract
A semiconductor system includes a first semiconductor device and a second semiconductor device. The first semiconductor device outputs a test mode enable signal and a switch control signal and receives test data. The second semiconductor device generates first internal data and second internal data in response to the test mode enable signal, drives a first pad in response to the first internal data, drives a second pad in response to the second internal data, and drives a third pad in response to the first and second internal data according to the switch control signal.
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