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74F240PC 数据表(PDF) 3 Page - National Semiconductor (TI) |
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74F240PC 数据表(HTML) 3 Page - National Semiconductor (TI) |
3 / 10 page Unit LoadingFan Out 54F74F Pin Names Description UL Input IIH IIL HIGHLOW Output IOH IOL OE1 OE2 TRI-STATE Output Enable Input (Active LOW) 101667 20 mA b1mA OE2 TRI-STATE Output Enable Input (Active HIGH) 101667 20 mA b1mA I0–I7 Inputs (’F240) 101667 20 mA b1mA I0–I7 Inputs (’F241 ’F244) 102667 20 mA b16 mA O0–O7 O0–O7 Outputs 6001066 (80) b 12 mA64 mA (48 mA) Worst-case ’F240 enabled ’F241 ’F244 disabled Truth Tables ’F240 OE1 D1n O1n OE2 D2n O2n HX Z H X Z LH L L H L LL H L L H ’F241 OE1 D1n O1n OE2 D2n O2n HX Z L X Z LH H H H H LL L H L L ’F244 OE1 D1n O1n OE2 D2n O2n HX Z H X Z LH H L H H LL L L L L H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance 3 |
类似零件编号 - 74F240PC |
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类似说明 - 74F240PC |
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