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Topic: 74LS164P shift register, in sinking configuration? (Read 6419 times) previous topic - next topic


Not "shorted", but connected via transistor.


See figure 6 on page 5.


See figure 27 on page 48.
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cool, thanks, the diagram makes it easy to understand:

DOC Circuit Description
Figure 6 shows a simplified output stage of a typical logic circuit. When the input is low, the n-channel transistor (Qn) turns off and the p-channel transistor (Qp) turns on and begins to conduct, and the output voltage VO is pulled high. Conversely, when the input is high, Qp turns off, Qn begins to conduct, and VO is pulled low. This action is similar to an inverter, and several of these inverting stages typically are cascaded in series to form a buffer/driver.

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