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M74HC14 데이터시트(PDF) 5 Page - STMicroelectronics |
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M74HC14 데이터시트(HTML) 5 Page - STMicroelectronics |
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5 / 14 page ![]() M74HC14 Electrical characteristics 5/14 Table 7. AC electrical characteristics (CL = 50 pF, Input tr = tf = 6 ns) Symbol Parameter Test condition Value Unit VCC (V) TA = 25 °C -40 to 85 °C -55 to 125 °C Min Typ Max Min Max Min Max tTLH tTHL Output transition time 2.0 30 75 95 110 ns 4.5 8 15 19 22 6.0 7 13 16 19 tPLH tPHL Propagation delay time 2.0 42 125 155 190 ns 4.5 14 25 31 38 6.0 12 21 16 32 Table 8. Capacitive characteristics Symbol Parameter Test condition Value Unit VCC (V) TA = 25°C -40 to 85°C -55 to 125°C Min Typ Max Min Max Min Max CIN Input capacitance 5.0 5 10 10 10 pF CPD Power dissipation capacitance(1) 5.0 fIN = 10 MHz 28 pF 1. CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to test circuit). Average operating current can be obtained by the following equation: ICC(opr) = CPD x VCC x fIN + ICC/6(per gate). |
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