54f191 National Semiconductor Corporation, 54f191 Datasheet - Page 3

• Manufacturer Part Number: 54f191
• Description: Up/down Binary Counter With Preset Ripple Clock
• Manufacturer: National Semiconductor Corporation

Logic Diagram
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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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FIGURE 1 n-Stage Counter Using Ripple Clock
TL F 9495 – 7
FIGURE 2 Synchronous n-Stage Counter Using Ripple Carry Borrow
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FIGURE 3 Synchronous n-Stage Counter with Gated Carry Borrow
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