Semiconductor integrated circuit device having separate supply voltages for the logic stage and output stage
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United States of America Patent
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Dec 28, 1993
Grant Date -
N/A
app pub date -
Sep 13, 1991
filing date -
Sep 21, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor integrated circuit device has a plurality of emitter-coupled logic (ECL) gates. Separate power source wiring lines are provided for current switch circuits and emitter follower output circuits for the gates. The separate sets of power source wiring lines are respectively coupled to the corresponding external terminals of the semiconductor integrated circuit device. The power source wiring lines for each set are arranged adjacent one another on a semiconductor chip in order that they may be short circuited or kept separated depending upon the package structure of the semiconductor integrated circuit device.
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