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TTL-series 7476 JK-flipflop

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Circuit Description

This circuit shows the actual JK flipflop structure used in the TTL-series 7476 bipolar integrated circuit.

Besides the CLOCK, J, and K inputs and the Q and NQ outputs, two extra inputs nPRESET (or set) and nCLEAR (reset) are provided. One 7476 integrated circuit contains two of these flipflops.

The schematics layout shown here was copied from the databook. While fully symmetrical and astetically pleasing, it might be harder to understand than the left-to-right master-slave orientation used in the previous applets.

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Impressum http://tams-www.informatik.uni-hamburg.de/applets/hades/webdemos/16-flipflops/40-jkff/SN7476-single.html