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74AC574 Scheda tecnica(PDF) 5 Page - STMicroelectronics |
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74AC574 Scheda tecnica(HTML) 5 Page - STMicroelectronics |
5 / 11 page 74AC574 5/11 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns) (*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5V CAPACITIVE CHARACTERISTICS 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/n (per circuit) 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. tPLH tPHL Propagation Delay Time CK to Q 3.3(*) 6.5 13.5 15.0 16.5 ns 5.0(**) 5.0 9.5 11.0 11.5 tPZL tPZH Output Enable Time 3.3(*) 7.0 11.0 12.0 13.0 ns 5.0(**) 5.0 8.5 9.0 9.5 tPLZ tPHZ Output Disable Time 3.3(*) 6.5 12.0 13.0 14.0 ns 5.0(**) 5.0 9.5 10.5 11.5 tW CLOCK Pulse Width HIGH or LOW 3.3(*) 1.5 6.0 7.0 7.0 ns 5.0(**) 1.5 4.0 5.0 5.0 ts Setup Time D to CK, HIGH or LOW 3.3(*) -0.5 2.5 3.0 3.0 ns 5.0(**) 0 1.5 2.0 2.0 th Hold Time D to CK, HIGH or LOW 3.3(*) 0.5 2.5 3.0 3.0 ns 5.0(**) 0 1.5 2.0 2.0 fMAX Maximum Clock Frequency 3.3(*) 75 220 60 60 MHz 5.0(**) 95 250 85 85 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 4 pF COUT Output Capacitance 5.0 8 pF CPD Power Dissipation Capacitance (note 1) 5.0 fIN = 10MHz 18 pF |
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