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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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CY29FCT818T Datenblatt(PDF) 3 Page - Texas Instruments |
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CY29FCT818T Datenblatt(HTML) 3 Page - Texas Instruments |
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3 / 7 page  CY29FCT818T 3 Document #: 38-00275-B Notes: 1. NA = Not Applicable 2. Unless otherwise noted, these limits are over the operating free-air temperature range. 3. Unused inputs must always be connected to an appropriate logic voltage level, preferably either VCC or ground. 4. TA is the “instant on” case temperature. 5. Typical values are at VCC=5.0V, TA=+25˚C ambient. 6. This parameter is specified but not tested. 7. Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample and hold techniques are preferable in order to minimize internal chip heating and more accurately reflect operational values. Otherwise prolonged shorting of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameters tests. In any sequence of parameter tests, IOS tests should be performed last. Electrical Characteristics Over the Operating Range Parameter Description Test Conditions Min. Typ.[5] Max. Unit Capacitance[8] Parameter Description Test Conditions Typ.[5] Max. Unit CIN Input Capacitance 5 10 pF COUT Output Capacitance 9 12 pF 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 0.2 1.5 mA ∆I CC Quiescent Power Supply Current (TTL inputs HIGH) VCC=Max., VIN=3.4V, f1=0, Outputs Open [8] 0.5 2.0 mA ICCD Dynamic Power Supply Current[9] VCC=Max., 50% Duty Cycle, Outputs Open, One Input Toggling, OE=GND, VIN<0.2V or VIN>VCC–0.2V 0.25 mA/MHz IC Total Power Supply Current[10] VCC=Max., 50% Duty Cycle, Outputs Open, f0=10 MHz, One Bit Toggling at f1=5 MHz, OE=GND, VIN<0.2V or VIN>VCC–0.2V 5.3 mA VCC=Max., 50% Duty Cycle, Outputs Open, f0=10 MHz, One Bit Toggling at f1=5 MHz, OE=GND, VIN=3.4V or VIN=GND 7.3 mA VCC=Max., 50% Duty Cycle, Outputs Open, f0=10 MHz, Eight Bits and Four Controls Toggling, f1=5 MHz, OE=GND, VIN<0.2V or VIN>VCC–0.2V 17.8[11] mA VCC=Max., 50% Duty Cycle, Outputs Open, f0=10 MHz, Eight Bits and Four Controls Toggling, f1=5 MHz, OE=GND, VIN=3.4V or VIN=GND 30.8[11] mA Notes: 8. Per TTL driven input (VIN=3.4V); all other inputs at VCC or GND. 9. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. 10. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC =ICC+∆ICCDHNT+ICCD(f0/2 + f1N1) ICC = Quiescent Current with CMOS input levels ∆I CC = Power Supply Current for a TTL HIGH input (VIN=3.4V) 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 milliamps and all frequencies are in megahertz. 11. Values for these conditions are examples of the ICC formula. These limits are specified but not tested. |
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