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74F299 数据表(PDF) 4 Page - Fairchild Semiconductor |
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74F299 数据表(HTML) 4 Page - Fairchild Semiconductor |
4 / 6 page www.fairchildsemi.com 4 AC Electrical Characteristics AC Operating Requirements Symbol Parameter TA = +25°CTA = −55°C to +125°CTA = 0 to +70°C Units VCC = 5.0V VCC = 5.0V VCC = 5.0V CL = 50 pF CL = 50 pF CL = 50 pF Min Typ Max Min Max Min Max fMAX Maximum Input Frequency 70 100 85 70 MHz tPLH Propagation Delay 4.0 7.0 8.0 4.0 9.0 4.0 8.5 ns tPHL CP to Q0 or Q7 4.56.5 8.04.5 9.54.5 8.5 tPLH Propagation Delay 3.5 7.0 9.0 3.5 10.0 3.5 10.0 tPHL CP to I/On 4.0 8.5 9.0 4.0 11.0 4.0 10.0 tPHL Propagation Delay 5.5 7.5 9.5 5.5 12.5 5.5 10.5 ns MR to Q0 or Q7 tPHL Propagation Delay 5.5 11.0 10.0 5.5 12.0 5.5 10.5 MR to I/On tPZH Output Enable Time 3.5 6.0 8.0 3.0 9.5 3.5 9.0 ns tPZL OE to I/On 4.0 7.0 10.0 4.0 13.0 4.0 11.0 tPHZ Output Disable Time 2.0 4.5 6.0 1.5 7.0 2.0 7.0 tPLZ OE to I/On 1.04.0 5.51.0 6.51.0 6.5 tPZH Output Enable Time 3.5 9.0 3.0 10.5 3.5 10.0 ns tPZL Sn to I/On 4.0 10.0 4.0 13.0 4.0 11.0 tPHZ Output Disable Time 2.5 6.0 1.5 7.0 2.5 7.0 ns tPLZ Sn to I/On 1.5 5.5 1.0 6.5 1.5 6.5 Symbol Parameter TA = +25°CTA = −55°C to +125°CTA = 0 to +70°C Units VCC = 5.0V VCC = 5.0V VCC = 5.0V Min Max Min Max Min Max tS(H) Setup Time, HIGH or LOW 8.5 10.0 8.5 ns tS(L) S0 or S1 to CP 8.5 7.5 8.5 tH(H) Hold Time, HIGH or LOW 0 0 0 tH(L) S0 or S1 to CP 0 0 0 tS(H) Setup Time, HIGH or LOW 5.0 5.0 5.0 ns tS(L) I/On, DS0 or DS7 to CP 5.0 5.0 5.0 tH(H) Hold Time, HIGH or LOW 2.0 2.0 2.0 tH(L) I/On, DS0 or DS7 to CP 2.0 2.0 2.0 tW(H) CP Pulse Width 5.0 5.0 5.0 ns tW(L) HIGH or LOW 5.0 5.0 5.0 tW(L) MR Pulse Width, LOW 5.0 6.0 5.0 ns tREC Recovery Time, MR to CP 7.0 12.0 7.0 ns |
类似零件编号 - 74F299 |
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类似说明 - 74F299 |
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