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74VHCT138AMTR Scheda tecnica(PDF) 4 Page - STMicroelectronics |
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74VHCT138AMTR Scheda tecnica(HTML) 4 Page - STMicroelectronics |
4 / 12 page 74VHCT138A 4/12 Table 6: DC Specifications Table 7: AC Electrical Characteristics (Input tr = tf = 3ns) (*) Voltage range is 5.0V ± 0.5V Table 8: 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 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 II Input Leakage Current 0 to 5.5 VI = 5.5V or GND ± 0.1 ± 1.0 ± 1.0 µA ICC Quiescent Supply Current 5.5 VI = VCC or GND 440 40 µA +ICC Additional Worst Case Supply Current 5.5 One Input at 3.4V, other input at VCC or GND 1.35 1.5 1.5 mA IOPD Output Leakage Current 0 VOUT = 5.5V 0.5 5.0 5.0 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 A, B, C, to Y 5.0(*) 15 7.6 10.4 1.0 12.0 1.0 12.0 ns 5.0(*) 50 8.1 11.4 1.0 13.0 1.0 13.0 tPLH tPHL Propagation Delay Time G1 to Y 5.0(*) 15 6.6 9.1 1.0 10.5 1.0 10.5 ns 5.0(*) 50 7.1 10.1 1.0 11.5 1.0 11.5 tPLH tPHL Propagation Delay Time G2A, G2B to Y 5.0(*) 15 7.0 9.6 1.0 11.0 1.0 11.0 ns 5.0(*) 50 7.5 10.6 1.0 12.0 1.0 12.0 Symbol Parameter Test Condition Value Unit TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 610 10 10 pF CPD Power Dissipation Capacitance (note 1) 36 pF |
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