IDT54FCT162827AT 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT162827AT Datasheet PDF : 8 Pages
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IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min. Typ.(2) Max. Unit
∆ICC
ICCD
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current(4)
VCC = Max.
VIN = 3.4V(3)
VCC = Max.
Outputs Open
xOE1 = xOE2 = GND
One Input Toggling
VIN = VCC
VIN = GND
— 0.5 1.5 mA
—
60 100 µA/
MHz
50% Duty Cycle
IC
Total Power Supply Current(6)
VCC = Max.
VIN = VCC
— 0.6 1.5 mA
Outputs Open
VIN = GND
fi = 10MHz
50% Duty Cycle
xOE1 = xOE2 = GND
VIN = 3.4V
VIN = GND
— 0.9 2.3
One Bit Toggling
VCC = Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
xOE1 = xOE2 = GND
Twenty Bits Toggling
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
—
3.0 5.5(5)
—
8.0 20.5(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 (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆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)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
2773 tbl 08
5.17
5
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