전자부품 데이터시트 검색엔진 |
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74ACT125 데이터시트(PDF) 4 Page - STMicroelectronics |
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74ACT125 데이터시트(HTML) 4 Page - STMicroelectronics |
4 / 8 page TEST CIRCUIT TEST SWI TCH tPLH,tPHL Open tPZL,tPLZ 2VCC tPZH,tPHZ Open CL = 50 pF or equivalent (includes jig and probe capacitance) RL =R1 = 500 Ω or equivalent RT =ZOUT of pulse generator (typically 50 Ω) AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr =tf =3 ns) Symbol Parameter T est Cond iti on Value Unit VCC (V) TA =25 oC-40 to 85 oC Mi n. Typ. Max. Min . Max. tPLH tPHL Propagation Delay Time 5.0 (*) 1.0 6.5 9.0 1.0 10.0 ns tPZL tPZH Output Enable Time 5.0 (*) 1.0 6.0 8.5 1.0 9.5 ns tPLZ tPHZ Output Disable Time 5.0 (*) 1.0 7.0 9.5 1.0 10.5 ns (*) Voltage range is 5V ± 0.5V CAPACITIVE CHARACTERISTICS Symbol Parameter Test Con dition s Value Unit VCC (V) TA =25 oC-40 to 85 oC Mi n. Typ. Max. Min . Max. CIN Input Capacitance 5.0 4 pF COUT Output Capacitance 5.0 8 pF CPD Power Dissipation Capacitance (note 1) 5.0 TBD 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 • VCC •fIN +ICC/n (per circuit) 74ACT125 4/8 |
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