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74121 データシート(PDF) 3 Page - Fairchild Semiconductor |
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74121 データシート(HTML) 3 Page - Fairchild Semiconductor |
3 / 5 page 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 1) Note 1: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The Recommended Operating Conditions table will define the conditions for actual device operation. Recommended Operating Conditions Note 2: TA = 25°C and VCC = 5V Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Note 3: All typicals are at VCC = 5V, TA = 25°C. Note 4: Not more than one output should be shorted at a time. Supply Voltage 7V Input Voltage 5.5V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.75 5 5.25 V VT+ Positive-Going Input Threshold Voltage 1.4 2 V at the A Input (VCC = Min) VT− Negative-Going Input Threshold Voltage 0.8 1.4 V at the A Input (VCC = Min) VT+ Positive-Going Input Threshold Voltage 1.5 2 V at the B Input (VCC = Min) VT− Negative-Going Input Threshold Voltage 0.8 1.3 V at the B Input (VCC = Min) IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 16 mA tW Input Pulse Width (Note 2) 40 ns dV/dt Rate of Rise or Fall of 1V/s Schmidt Input (B) (Note 2) dV/dt Rate of Rise or Fall of 1V/ µs Schmidt Input (A) (Note 2) REXT External Timing Resistor (Note 2) 1.4 40 k Ω CEXT External Timing Capacitance (Note 2) 0 1000 µF DC Duty Cycle (Note 2) RT = 2 kΩ 67 % RT = REXT (Max) 90 TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ (Note 3) Max Units VI Input Clamp Voltage VCC = Min, II = −12 mA −1.5 V VOH HIGH Level Output VCC = Min, IOH = Max, 2.4 3.4 V Voltage VIL = Max, VIH = Min VOL LOW Level Output VCC = Min, IOL = Max, 0.2 0.4 V Voltage VIH = Max, VIL = Min II Input Current @ VCC = Max, VI = 5.5V 1 mA Max Input Voltage IIH HIGH Level VCC = Max, A1, A2 40 µA Input Current VI = 2.4V B 80 IIL LOW Level VCC = Max, A1, A2 −1.6 mA Input Current VI = 0.4V B −3.2 IOS Short Circuit Output Current VCC = Max (Note 4) −18 −55 mA ICC Supply Current VCC = Max Quiescent 13 25 mA Triggered 23 40 |
同様の部品番号 - 74121 |
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同様の説明 - 74121 |
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