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74AC174MTR Scheda tecnica(PDF) 5 Page - STMicroelectronics |
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74AC174MTR Scheda tecnica(HTML) 5 Page - STMicroelectronics |
5 / 11 page 74AC174 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/6 (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 CLOCK to Y 3.3(*) 1.5 8.5 11.0 12.5 14.0 ns 5.0(**) 1.5 6.0 8.0 9.5 10.5 tPHL Propagation Delay Time CLEAR to Y 3.3(*) 1.5 9.0 11.5 12.5 13.5 ns 5.0(**) 1.5 7.0 9.0 10.5 11.0 tWL CLEAR Pulse Width, LOW 3.3(*) 1.0 5.5 7.0 7.0 ns 5.0(**) 1.0 5.0 5.0 5.0 tW CLOCK Pulse Width 3.3(*) 1.0 5.5 7.0 7.0 ns 5.0(**) 1.0 5.0 5.0 5.0 ts Setup Time D to CLOCK, HIGH or LOW 3.3(*) 2.5 6.5 7.0 7.0 ns 5.0(**) 2.0 5.0 5.5 5.5 th Hold Time D to CLOCK, HIGH or LOW 3.3(*) 1.0 3.0 3.0 3.0 ns 5.0(**) 0.5 3.0 3.0 3.0 tREM Recovery Time CLEAR to CK 3.3(*) 0 2.5 2.5 2.5 ns 5.0(**) 0 2.0 2.0 2.0 fMAX Maximum Clock Frequency 3.3(*) 90 200 70 70 MHz 5.0(**) 100 250 100 100 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 4.5 pF CPD Power Dissipation Capacitance (note1) 5.0 fIN = 10MHz 33 pF |
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