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IDT54FCT2157ATE Datasheet(PDF) 4 Page - Integrated Device Technology |
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IDT54FCT2157ATE Datasheet(HTML) 4 Page - Integrated Device Technology |
4 / 7 page 6.6 4 IDT54/74FCT157T/AT/CT/DT, IDT54/74FCT257T/AT/CT/DT- 2257T/AT/CT FAST CMOS QUAD 2-INPUT MULTIPLEXER MILITARY AND COMMERCIAL TEMPERATURE RANGES POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4(3) — 0.5 2.0 mA ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open E or OE = GND VIN = VCC VIN = GND FCTxxxT — 0.15 0.25 mA/ MHz One Bit Toggling 50% Duty Cycle FCT2xxxT — 0.06 0.12 IC Total Power Supply Current(6) VCC = Max. VIN = VCC FCTxxxT — 1.5 3.5 mA Outputs Open VIN = GND FCT2xxxT — 0.6 2.2 fO = 10MHz 50% Duty Cycle VIN = 3.4 FCTxxxT — 1.8 4.5 E or OE = GND One Bit Toggling VIN = GND FCT2xxxT 0.9 3.2 VCC = Max. VIN = VCC FCTxxxT — 1.5 3.5(5) Outputs Open VIN = GND FCT2xxxT 0.6 2.2(5) fO = 2.5MHz 50% Duty Cycle VIN = 3.4 FCTxxxT 2.5 7.5(5) E or OE = GND Four Bits Toggling VIN = GND FCT2xxxT 1.6 6.2(5) NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25 °C ambient. 3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. 5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (foNo) ICC = Quiescent Current ∆ICC = 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 Output Transition Pair (HLH or LHL) fo = Output Frequency No = Number of Outputs at fo All currents are in milliamps and all frequencies are in megahertz. 2537 tbl 06 |
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