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74VHCT16244 Datasheet(PDF) 4 Page - STMicroelectronics |
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74VHCT16244 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 9 page 74VHCT16244A 4/9 DC SPECIFICATIONS AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3ns) (*) 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 xVCC xfIN +ICC/16 (per Latch) 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. VIH High Level Input Voltage 4.5 to 5.5 22 2 V VIL Low Level Input Voltage 4.5 to 5.5 0.8 0.8 0.8 V VOH High Level Output Voltage 4.5 IO=-50 µA 4.4 4.5 4.4 4.4 V 4.5 IO=-8 mA 3.94 3.8 3.7 VOL Low Level Output Voltage 4.5 IO=50 µA 0.0 0.1 0.1 0.1 V 4.5 IO=8 mA 0.36 0.44 0.55 IOZ High Impedance Output Leakage Current 5.5 VI =VIH or VIL VO =VCC or GND ±0.25 ± 2.5 ± 2.5 µA II Input Leakage Current 0to 5.5 VI = 5.5V or GND ± 0.1 ± 1 ± 1 µA ICC Quiescent Supply Current 5.5 VI =VCC or GND 440 40 µA Symbol Parameter Test Condition Value Unit VCC (*) (V) CL (pF) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. tPLH tPHL Propagation Delay Time 5.0 15 5.4 8.5 1.0 9.5 1.0 10.0 ns 5.0 50 7 9.5 1.0 10.5 1.0 11.0 tPLZ tPHZ Output Disable Time 5.0 15 RL = 1K Ω 7.7 10.4 1.0 12.0 1.0 12.0 ns 5.0 50 8.2 11.4 1.0 13.0 1.0 13.0 tPZL tPZH Output Enable Time 5.0 50 RL = 1K Ω 8.8 11.4 1.0 13.0 1.0 13.0 ns 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 410 10 10 pF COUT Output Capacitance 6pF CPD Power Dissipation Capacitance (note 1) 5.0 fIN = 10MHz 21 pF |
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