| 摘要 |
An integrated circuit is provided with first and second variable delay circuits, a test data feeding circuitry, a test control circuit, and a wire-connection line. The test data feeding circuitry feeds first and second test data signals to the first and second variable delay circuits, respectively. The first and second test data signals are complement to each other. The test control circuit feeds first and second drive capability control signals to the first and second variable delay circuits to control drive capabilities of the first and second variable delay circuits. The wire-connection line provides a wire-connection for outputs of the first and second variable delay circuits.
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