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74F109 Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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74F109 Datasheet(HTML) 4 Page - Fairchild Semiconductor |
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www.fairchildsemi.com 4 AC Electrical Characteristics AC Operating Requirements Symbol Parameter TA = +25°CTA = 0°C to +70°C Units VCC = +5.0V VCC = +5.0V CL = 50 pF CL = 50 pF Min Typ Max Min Max fMAX Maximum Clock Frequency 100 125 90 MHz tPLH Propagation Delay 3.8 5.3 7.0 3.8 8.0 ns tPHL CPn to Qn or Qn 4.4 6.2 8.0 4.4 9.2 tPLH Propagation Delay 3.2 5.2 7.0 3.2 8.0 ns tPHL CDn or SDn to 3.5 7.0 9.0 3.5 10.5 ns Qn or Qn Symbol Parameter TA = +25°CTA = 0°C to +70°C Units VCC = +5.0V VCC = +5.0V Min Max Min Max tS(H) Setup Time, HIGH or LOW 3.0 3.0 ns tS(L) Jn or Kn to CPn 3.0 3.0 tH(H) Hold Time, HIGH or LOW 1.0 1.0 tH(L) Jn or Kn to CPn 1.0 1.0 tW(H) CPn Pulse Width 4.0 4.0 ns tW(L) HIGH or LOW 5.0 5.0 tW(L) CDn or SDn Pulse Width LOW 4.0 4.0 ns tREC Recovery Time 2.0 2.0 ns CDn or SDn to CP |
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