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CY74FCT163646 Datasheet(PDF) 5 Page - Texas Instruments |
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CY74FCT163646 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 8 page CY74FCT163646 5 Power Supply Characteristics Parameter Description Test Conditions Typ.[5] Max. Unit ICC Quiescent Power Supply Current VCC=Max. VIN<0.2V VIN>VCC−0.2V 0.1 10 µA ∆I CC Quiescent Power Supply Current TTL Inputs HIGH VCC=Max. VIN=VCC–0.6V [10] 2.0 30 µA ICCD Dynamic Power Supply Current[11] VCC=Max., Outputs Open DIR=OE=GND One-Bit Toggling 50% Duty Cycle VIN=VCC or VIN=GND 50 75 µA/MHz IC Total Power Supply Current[12] VCC=Max.,Outputs Open fo=10 MHz (CLKBA) 50% Duty Cycle DIR=OE=GND One-Bit Toggling, f1=5 MHz, 50% Duty Cycle VIN=VCC or VIN=GND 0.5 0.8 mA VIN=VCC–0.6V or VIN=GND 0.5 0.8 VCC=Max., Outputs Open fo=10 MHz (CLKBA) 50% Duty Cycle DIR=OE=GND Sixteen-Bits Toggling f1=2.5 MHz 50% Duty Cycle VIN=VCC or VIN=GND 2.5 3.8[13] VIN=VCC–0.6V or VIN=GND 2.6 4.1[13] Notes: 10. Per TTL driven input); all other inputs at VCC or GND. 11. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. 12. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC =ICC+∆ICCDHNT+ICCD(f0NC /2 + f1N1) ICC = Quiescent Current with CMOS input levels ∆I CC = Power Supply Current for a TTL HIGH input DH = Duty Cycle for TTL inputs HIGH NT = Number of TTL inputs at DH ICCD = Dynamic Current caused by an input transition pair (HLH or LHL) f0 = Clock frequency for registered devices, otherwise zero NC = Number of clock inputs changing at f1 f1 = Input signal frequency N1 = Number of inputs changing at f1 All currents are in milliamps and all frequencies are in megahertz. 13. Values for these conditions are examples of the ICC formula. These limits are specified but not tested. |
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