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IDT74FCT841DTD Datasheet(PDF) 4 Page - Integrated Device Technology |
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IDT74FCT841DTD Datasheet(HTML) 4 Page - Integrated Device Technology |
4 / 7 page 6.22 4 MILITARY AND COMMERCIAL TEMPERATURE RANGES IDT54/74FCT841AT/BT/CT/DT FAST CMOS BUS INTERFACE LATCHES POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) — 0.5 2.0 mA ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open OE = GND VIN = VCC VIN = GND — 0.15 0.25 mA/ MHz LE = VCC One Input Toggling 50% Duty Cycle IC Total Power Supply Current(6) VCC = Max. VIN = VCC — 1.5 3.5 mA Outputs Open fi = 10MHz VIN = GND 50% Duty Cycle OE = GND VIN = 3.4 VIN = GND — 1.8 4.5 LE = VCC One Bit Toggling VCC = Max. VIN = VCC — 3.0 6.0(5) Outputs Open fi = 2.5MHz VIN = GND 50% Duty Cycle OE = GND VIN = 3.4 VIN = GND — 5.0 14.0(5) LE = VCC Eight Bits Toggling 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 (fCP/2 + fiNi) 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 Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fi = Input Frequency Ni = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz. 2571 tbl 07 |
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