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74F399SC 数据表(PDF) 2 Page - Fairchild Semiconductor |
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74F399SC 数据表(HTML) 2 Page - Fairchild Semiconductor |
2 / 9 page www.fairchildsemi.com 2 Logic Symbols 74F398 74F399 IEEE/IEC 74F398 74F399 Unit Loading/Fan Out Pin Names Description U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL S Common Select Input 1.0/1.0 20 µA/−0.6 mA CP Clock Pulse Input (Active Rising Edge) 1.0/1.0 20 µA/−0.6 mA I0a–I0d Data Inputs from Source 0 1.0/1.0 20 µA/−0.6 mA I1a–I1d Data Inputs from Source 1 1.0/1.0 20 µA/−0.6 mA Qa–Qd Register True Outputs 50/33.3 −1 mA/20 mA Qa–Qd Register Complementary Outputs (74F398) 50/33.3 −1 mA/20 mA |
类似零件编号 - 74F399SC |
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类似说明 - 74F399SC |
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