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MM74C192 Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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MM74C192 Datasheet(HTML) 4 Page - Fairchild Semiconductor |
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4 / 6 page 
www.fairchildsemi.com 4 Timing Diagrams MM74C192 Note A: Clear outputs to zero. Note B: Load (preset) to binary thirteen. Note C: Count up to fourteen, fifteen, carry, zero, one and two. Note D: Count down to one, zero, borrow, fifteen, fourteen, and thirteen. MM74C193 Note A: Clear outputs to zero. Note B: Load (preset) to BCD seven. Note C: Count up to eight, nine, carry, zero, one, and two. Note D: Count down to one, zero, borrow, nine, eight, and seven. Note E: Clear overrides load, data, and count inputs. Note F: When counting up, count down input must be HIGH; when counting down, count-up input must be HIGH. |
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