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74VHC273M Datasheet(PDF) 4 Page - STMicroelectronics |
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74VHC273M Datasheet(HTML) 4 Page - STMicroelectronics |
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 CPD Power Dissipation Capacitance (note 1) 31 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 Flip-Flop) 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 CK to Q 3.3 (*) 15 8.7 13.6 1.0 16.0 ns 3.3 (*) 50 11.2 17.1 1.0 19.5 5.0 (**) 15 5.8 9.0 1.0 10.5 5.0 (**) 50 7.3 11.0 1.0 12.5 tPHL Propagation Delay Time CLR to Q 3.3 (*) 15 8.9 13.6 1.0 16.0 ns 3.3 (*) 50 11.4 17.1 1.0 19.5 5.0 (**) 15 5.2 8.5 1.0 10.0 5.0 (**) 50 6.7 10.5 1.0 12.0 tw CLR pulse Width LOW 3.3 (*) 5.0 6.0 ns 5.0 (**) 5.0 5.0 tw CK pulse Width HIGH or LOW 3.3 (*) 5.5 6.5 ns 5.0 (**) 5.0 5.0 ts Setup Time D to CK HIGH or LOW 3.3 (*) 5.5 6.5 ns 5.0 (**) 4.5 4.5 th Hold Time D to CK HIGH or LOW 3.3 (*) 1.0 1.0 ns 5.0 (**) 1.0 1.0 tREM Removal Time CLR to CK 3.3 (*) 2.5 2.5 ns 5.0 (**) 2.0 2.0 fMAX Maximum Clock Frequency 3.3 (*) 15 75 120 65 MHz 3.3 (*) 50 50 75 45 5.0 (**) 15 120 165 100 5.0 (**) 50 80 110 70 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| 74VHC273 4/10 |
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