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IDT74FCT377T Datasheet(PDF) 4 Page - Integrated Device Technology

Part No. IDT74FCT377T
Description  FAST CMOS OCTAL D FLIP-FLOP WITH CLOCK ENABLE
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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IDT74FCT377T Datasheet(HTML) 4 Page - Integrated Device Technology

   
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4
IDT54/74FCT377T/AT/CT/DT
FAST CMOS OCTAL D FLIP-FLOP WITH CLOCK ENABLE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
∆ICC
Quiescent Power Supply
VCC = Max.
0.5
2.0
mA
Current TTL Inputs HIGH
VIN = 3.4V
(3)
ICCD
Dynamic Power Supply
VCC = Max., Outputs Open
VIN = VCC
0.15
0.25
mA/
Current
(4)
CE = GND
VIN = GND
MHz
One Input Toggling
50% Duty Cycle
IC
Total Power Supply
VCC = Max., Outputs Open
VIN = VCC
1.5
3.5
mA
Current
(6)
fCP = 10MHz
VIN = GND
CE = GND
VIN = 3.4V
2.0
5.5
One Bit Toggling
VIN = GND
fi = 5MHz
50% Duty Cycle
VCC = Max., Outputs Open
VIN = VCC
3.8
7.3
(5)
fCP = 10MHz, 50% Duty Cycle
VIN = GND
CE = GND
VIN = 3.4V
6.0
16.3
(5)
Eight Bits Toggling
VIN = GND
fi = 2.5MHz
50% Duty Cycle
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.
2639 tbl 05


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