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74ACT280M Arkusz danych(PDF) 4 Page - STMicroelectronics |
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74ACT280M Arkusz danych(HTML) 4 Page - STMicroelectronics |
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4 / 8 page ![]() CAPACITIVE CHARACTERISTICS Symb ol Parameter Test Co nditi ons Valu e Un it VCC (V) TA =25 oC -40 to 85 oC Min. T yp. Max. Mi n. Max. CIN Input Capacitance 5.0 4 pF CPD Power Dissipation Capacitance (note 1) 5.0 75 pF 1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN +ICC AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr =tf =3 ns) Symb ol Parameter T est Con ditio n Valu e Un it VCC (V) TA =25 oC -40 to 85 oC Min. T yp. Max. Mi n. Max. tPLH tPHL Propagation Delay Time (Input - ΣODD, ΣEVEN) 5.0 (*) 3.0 8.5 13.0 2.0 14.5 ns (*) Voltage range is 5V ± 0.5V CL = 50 pF or equivalent (includes jigand probe capacitance) RL =R1 =500 Ω orequivalent RT =ZOUT of pulse generator (typically 50 Ω) TEST CIRCUIT 74ACT280 4/8 |
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