74AC191CW Ver la hoja de datos (PDF) - Fairchild Semiconductor

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74AC191CW

Up/Down Counter with Preset and Ripple Clock

Fairchild Semiconductor 

Functional Description (continued)

FIGURE 1. N-Stage Counter Using Ripple Clock

FIGURE 2. Synchronous N-Stage Counter Using Ripple Carry/Borrow

FIGURE 3. Synchronous N-Stage Counter with Parallel Gated Carry/Borrow

Logic Diagram

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

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