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74VHCT74A Scheda tecnica(PDF) 4 Page - Fairchild Semiconductor |
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74VHCT74A Scheda tecnica(HTML) 4 Page - Fairchild Semiconductor |
4 / 9 page ©1997 Fairchild Semiconductor Corporation www.fairchildsemi.com 74VHCT74A Rev. 1.3 4 DC Electrical Characteristics AC Electrical Characteristics Notes: 6. VCC is 5.0 ± 0.5V 7. CPD is defined as the value of internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (Opr.) = CPD • VCC • fIN + ICC / 2 (per flip-flop). Symbol Parameter VCC (V) Conditions TA = 25°C TA = –40°C to +85°C Units Min. Typ. Max. Min. Max. VIH HIGH Level Input Voltage 4.5 2.0 2.0 V 5.5 2.0 2.0 VIL LOW Level Input Voltage 4.5 0.8 0.8 V 5.5 0.8 0.8 VOH HIGH Level Output Voltage 4.5 VIN = VIH or VIL IOH = –50µA 4.40 4.50 4.40 V 4.5 IOH = –8mA 3.94 3.80 VOL LOW Level Output Voltage 4.5 VIN = VIH or VIL IOL = 50µA 0.0 0.1 0.1 V 4.5 IOL = 8mA 0.36 0.44 IIN Input Leakage Current 0–5.5 VIN = 5.5V or GND ±0.1 ±1.0 µA ICC Quiescent Supply Current 5.5 VIN = VCC or GND 2.0 20.0 µA ICCT Maximum ICC / Input 5.5 VIN = 3.4V, Other Inputs = V CC or GND 1.35 1.50 mA IOFF Output Leakage Current (Power Down State) 0.0 VOUT = 5.5V +0.5 +5.0 µA Symbol Parameter VCC (V) (6) Conditions TA = 25°C TA = –40°C to +85°C Units Min. Typ. Max. Min. Max. fMAX Maximum Clock Frequency 5.0 CL = 15pF 100 160 80 MHz 5.0 CL = 50pF 80 140 65 tPLH, tPHL Propagation Delay Time (CK-Q, Q) 5.0 CL = 15pF 5.8 7.8 1.0 9.0 ns 5.0 CL = 50pF 6.3 8.8 1.0 10.0 tPLH, tPHL Propagation Delay Time (CLR, PR-Q, Q) 5.0 CL = 15pF 7.6 10.4 1.0 12.0 ns 5.0 CL = 50pF 8.1 11.4 1.0 13.0 CIN Input Capacitance VCC = Open 4 10 10 pF CPD Power Dissipation Capacitance (7) 24 pF |
Codice articolo simile - 74VHCT74A_07 |
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Descrizione simile - 74VHCT74A_07 |
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