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74F240SC 数据表(PDF) 2 Page - Fairchild Semiconductor |
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74F240SC 数据表(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page www.fairchildsemi.com 2 Logic Symbols IEEE/IEC 74F240 IEEE/IEC 74F241 IEEE/IEC 74F244 Unit Loading/Fan Out Note 2: Worst-case 74F240 enabled; 74F241, 74F244 disabled Truth Tables 74F240 74F241 74F244 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Pin Names Description U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL OE1, OE2 3-STATE Output Enable Input (Active LOW) 1.0/1.667 20 µA/−1 mA OE2 3-STATE Output Enable Input (Active HIGH) 1.0/1.667 20 µA/−1 mA I0–I7 Inputs (74F240) 1.0/1.667 (Note 2) 20 µA/−1 mA I0–I7 Inputs (74F241, 74F244) 1.0/2.667 (Note 2) 20 µA/−1.6 mA O0–O7, O0–O7 Outputs 600/106.6 (80) −12 mA/64 mA (48 mA) OE1 D1n O1n OE2 D2n O2n HX Z H X Z LH L L H L LL H L L H OE1 D1n O1n OE2 D2n O2n HX Z L X Z L H HHH H LLL H L L OE1 D1n O1n OE2 D2n O2n HX Z H X Z LH H L H H LL LLL L |
类似零件编号 - 74F240SC |
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类似说明 - 74F240SC |
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