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74VHC373M bảng dữ liệu(PDF) 4 Page - STMicroelectronics |
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74VHC373M bảng dữ liệu(HTML) 4 Page - STMicroelectronics |
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4 / 10 page ![]() CAPACITIVE CHARACTERISTICS Symb ol Parameter T est Cond ition s Val ue Un it TA =25 oC -40 to 85 oC Min. Typ . Max. Min . Max. CIN Input Capacitance 4 10 10 pF COUT Output Capacitance 6 pF CPD Power Dissipation Capacitance (note 1) 27 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/8 (per Latch) AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3 ns) Symb ol Parameter Test Co nditi on Val ue Un it VCC (V) CL (pF ) TA =25 oC -40 to 85 oC Min. Typ . Max. Min . Max. tPLH tPHL Propagation Delay Time LE to Q 3.3 (*) 15 7.0 11.0 1.0 13.0 ns 3.3 (*) 50 9.5 14.5 1.0 16.5 5.0 (**) 15 4.9 7.2 1.0 8.5 5.0 (**) 50 6.4 9.2 1.0 10.5 tPLH tPHL Propagation Delay Time Dto Q 3.3 (*) 15 7.3 11.4 1.0 13.5 ns 3.3 (*) 50 9.8 14.9 1.0 17.0 5.0 (**) 15 5.0 7.2 1.0 8.5 5.0 (**) 50 6.5 9.2 1.0 10.5 tPZL tPZH Output EnableTime 3.3 (*) 15 RL =1K Ω 7.3 11.4 1.0 13.5 ns 3.3 (*) 50 RL =1K Ω 9.8 14.9 1.0 17.0 5.0 (**) 15 RL =1K Ω 5.5 8.1 1.0 9.5 5.0 (**) 50 RL =1K Ω 7.0 10.1 1.0 11.5 tPLZ tPHZ Output Disable Time 3.3 (*) 50 RL =1K Ω 9.5 13.2 1.0 15.0 ns 5.0 (**) 50 RL =1K Ω 6.5 9.2 1.0 10.5 tw Pulse Width (LE) HIGH 3.3 (*) 5.0 5.0 ns 5.0 (**) 5.0 5.0 ts Setup Time D to LE HIGH or LOW 3.3 (*) 4.0 4.0 ns 5.0 (**) 4.0 4.0 th Hold Time D toLE HIGH or LOW 3.3 (*) 1.0 1.0 ns 5.0 (**) 1.0 1.0 tOSLH tOSHL Output to Output Skew Time (note 1) 3.3 (*) 50 1.5 1.5 ns 5.0 (**) 50 1.0 1.0 (*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5V ± 0.5V Note 1: Parameter guaranteed by design. tsoLH =|tpLHm-tpLHn|, tsoHL =|tpHLm -tpHLn| 74VHC373 4/10 |
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