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CY74FCT480BTQCTG4 Datasheet(PDF) 5 Page - Texas Instruments |
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CY74FCT480BTQCTG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 11 page CY54FCT480T, CY74FCT480T DUAL 8-BIT PARITY GENERATORS/CHECKERS SCCS025B – MAY 1993 – REVISED OCTOBER 2001 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS CY54FCT480T CY74FCT480T UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT ICCD¶ VCC = 5.5 V, Outputs open, One bit switching at 50% duty cycle, VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 0.06 0.12 mA/ ICCD¶ VCC = 5.25 V, Outputs open, One bit switching at 50% duty cycle, VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 0.06 0.12 MHz # One bit switching at f1 = 2.5 MHz VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 0.7 1.4 # VCC = 5.5 V, f0 0 MHz 1 at 50% duty cycle VIN = 3.4 V or GND 1 2.4 # f0 = 0 MHz, Outputs open 16 bits switching at f1 = 2.5 MHz VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 2.5 5|| IC# 1 at 50% duty cycle VIN = 3.4 V or GND 6.5 21|| mA IC# One bit switching at f1 = 2.5 MHz VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 0.7 1.4 mA VCC = 5.25 V, f0 0 MHz 1 at 50% duty cycle VIN = 3.4 V or GND 1 2.4 f0 = 0 MHz, Outputs open 16 bits switching at f1 = 2.5 MHz VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V 2.5 5|| 1 at 50% duty cycle VIN = 3.4 V or GND 6.5 21|| Ci 5 10 5 10 pF Co 9 12 9 12 pF † Typical values are at VCC = 5 V, TA = 25°C. ¶ This parameter is derived for use in total power-supply calculations. # IC= ICC + ∆ICC × DH × NT + ICCD (f0/2 + f1 × N1) Where: IC= Total supply current ICC= Power-supply current with CMOS input levels ∆ICC= Power-supply current for a TTL high input (VIN = 3.4 V) 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 f1= Input signal frequency N1= Number of inputs changing at f1 All currents are in milliamperes and all frequencies are in megahertz. || Values for these conditions are examples of the ICC formula. |
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