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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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MM74HC299 数据表(PDF) 3 Page - National Semiconductor (TI) |
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MM74HC299 数据表(HTML) 3 Page - National Semiconductor (TI) |
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3 / 6 page  AC Electrical Characteristics VCC 5V TA 25 C tr tf 6 ns CL 45 pF Symbol Parameter Conditions Typ Guaranteed Units Limit fMAX Maximum Operating MHz Frequency tPHL tPLH Maximum Propagation ns Delay Clock to QA or QH tPHL Maximum Propagation ns Delay Clear to QA or QH tPHL tPLH Maximum Propagation CL pF ns Delay Clock to QA QH tPHL Maximum Propagation CL pF ns Delay Clear to QA QH tPZL tPZH Maximum Enable Time CL pF ns RL kX tPHZ tPLZ Maximum Disable Time CL pF ns RL kX tS Minimum Setup Select ns Time Data ns tH Minimum Hold Select ns Time Data ns tW Minimum Pulse Width ns tREM Clear Removal Time ns AC Electrical Characteristics CL 50 pF tr tf 6 ns unless otherwise specified TA 25 C 74HC 54HC Symbol Parameter Conditions VCC TA b40 to 85 CTA b55 to 125 C Units Typ Guaranteed Limits fMAX Maximum Operating Frequency V MHz V MHz V MHz tPHL tPLH Maximum Propagation V ns Delay Clock to QA or QH V ns V ns tPHL Maximum Propagation V ns Delay Clear to QA or QH V ns V ns tPHL tPLH Maximum Propagation CL pF V ns Delay Clock to QA QH CL pF V ns CL pF V ns CL pF V ns CL pF V ns CL pF V ns tPHL Maximum Propagation CL pF V ns Delay Clear to QA QH CL pF V ns CL pF V ns CL pF V ns CL pF V ns CL pF V ns 3 |
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