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74FR25900 数据表(PDF) 5 Page - Fairchild Semiconductor |
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74FR25900 数据表(HTML) 5 Page - Fairchild Semiconductor |
5 / 7 page 5 www.fairchildsemi.com 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 tPLH Propagation Delay tPHL An or Bn to Cn 2.04.7 7.52.0 7.5 ns Cn to An or Bn tPLH Propagation Delay 2.54.8 7.52.5 7.5 ns tPHL C8 to A8 or B8 (PINV HIGH) tPLH Propagation Delay 4.5 7.0 11.5 4.5 11.5 ns tPHL An to Bn, Bn to An tPLH Propagation Delay 4.5 6.8 10.0 4.5 10.0 ns tPHL LEAC to Cn, LEBC to Cn tPLH Propagation Delay 3.5 6.0 10.0 3.5 10.0 ns tPHL LECA to An, LECB to Bn tPLH Propagation Delay 3.0 6.0 10.0 3.0 10.0 ns tPHL S0 to Cn tPLH Propagation Delay 4.0 7.0 11.5 4.0 11.5 ns tPHL S1 to An or Bn tPLH Propagation Delay 2.55.5 9.52.5 9.5 ns tPHL PINV to A8 or B8 tPZH Output Enable Time 1.54.0 6.51.5 6.5 ns tPZL Cn tPHZ Output Disable Time 1.54.0 6.01.5 6.0 ns tPLZ Cn tPZH Output Enable Time 1.56.0 8.01.5 8.0 ns tPZL An, Bn tPHZ Output Disable Time 1.55.0 7.01.5 7.0 ns tPLZ An, Bn 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 tS(H) Setup Time, HIGH or LOW 4.5 2.5 4.5 ns tS(L) An to LEAC, Bn to LEBC tH(H) Hold Time, HIGH or LOW 1.0 −1.5 1.0 ns tH(L) An to LEAC, Bn to LEBC tS(H) Setup Time, HIGH or LOW 3.0 1.0 3.0 ns tS(L) Cn to LECA or LECB tH(H) Hold Time, HIGH or LOW 1.0 −1.0 1.0 ns tH(L) Cn to LECA or LECB tW(H) LE Pulse Width LOW 8.0 4.0 8.0 ns |
类似零件编号 - 74FR25900 |
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类似说明 - 74FR25900 |
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