Semiconductor device having PLL-circuit
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United States of America Patent
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Oct 19, 2004
Issued Date -
N/A
app pub date -
Dec 31, 2003
filing date -
Nov 28, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor device includes a clock input terminal to which external clocks are supplied; a PLL circuit, which is supplied with the external clocks and generate first internal clocks; a logic circuit, which operates in synchronization with the internal clocks; and an internal counter, which counts the first internal clocks when the PLL circuit is tested. The internal counter is provided with an output terminal from which an output signal thereof is supplied to an external circuit.
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