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74F651SC 数据表(PDF) 6 Page - Fairchild Semiconductor |
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74F651SC 数据表(HTML) 6 Page - Fairchild Semiconductor |
6 / 8 page www.fairchildsemi.com 6 AC Electrical Characteristics AC Operating Requirements Symbol Parameter TA = +25°CTA = −55°C to +125°CTA = 0°C to +70°C Units VCC = +5.0V VCC = +5.0V VCC = +5.0V CL = 50 pF CL = 50 pF CL = 50 pF Min Max Min Max Min Max fMAX Max. Clock Frequency 90 75 90 MHz tPLH Propagation Delay 2.0 7.0 2.0 8.5 2.0 8.0 ns tPHL Clock to Bus 2.0 8.0 2.0 9.5 2.0 9.0 tPLH Propagation Delay 2.0 8.5 1.0 9.0 2.0 9.0 ns tPHL Bus to Bus (74F651) 1.0 7.5 1.0 8.0 1.0 8.0 tPLH Propagation Delay 1.0 7.0 1.0 8.0 1.0 7.5 ns tPHL Bus to Bus (74F652) 1.0 6.5 1.0 8.0 1.0 7.0 tPLH Propagation Delay 2.0 8.5 2.0 11.0 2.0 9.5 ns tPHL SBA or SAB to A or B 2.0 8.0 2.0 10.0 2.0 9.0 Symbol Parameter TA = +25°CTA = −55°C to +125°CTA = 0°C to +70°C Units VCC = +5.0V VCC = +5.0V VCC = +5.0V Min Max Min Max Min Max tPZH Enable Time 2.0 9.5 2.0 10.0 2.0 10.0 ns tPZL *OEBA to A 2.0 12.0 2.0 10.0 2.0 12.5 tPHZ Disable Time 1.0 7.5 1.0 9.0 1.0 8.0 tPLZ *OEBA to A 2.0 8.5 1.0 9.0 2.0 9.0 tPZH Enable Time 2.0 9.5 2.0 10.0 2.0 10.0 tPZL OEAB to B 3.0 13.0 2.0 12.0 3.0 14.0 tPHZ Disable Time 2.0 9.0 1.0 9.0 2.0 10.0 ns tPLZ OEAB to B 2.0 10.5 1.0 12.0 2.0 11.0 tS(H) Setup Time, HIGH or 5.0 5.0 5.0 ns tS(L) LOW, Bus to Clock 5.0 5.0 5.0 tH(H) Hold Time, HIGH or 2.0 2.5 2.0 ns tH(L) LOW, Bus to Clock 2.0 2.5 2.0 tW(H) Clock Pulse Width 5.0 5.0 5.0 ns tW(L) HIGH or LOW 5.0 5.0 5.0 |
类似零件编号 - 74F651SC |
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类似说明 - 74F651SC |
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