IDT54FCT823AT データシートの表示（PDF） - Integrated Device Technology
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IDT54FCT823AT Datasheet PDF : 9 Pages
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IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT
HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS
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.
VIN = VCC
— 0.5 2.0 mA
— 0.15 0.25 mA/
Outputs Open
VIN = GND
MHz
OE = EN = GND
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(6)
VCC = Max.
VIN = VCC
— 1.5 3.5 mA
Outputs Open
VIN = GND
fCP= 10MHz
50% Duty Cycle
OE = EN = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
— 2.0 5.5
at fi = 5MHz
50% Duty Cycle
VCC = Max.
VIN = VCC
—
3.8 7.3(5)
Outputs Open
VIN = GND
fCP= 10MHz
50% Duty Cycle
OE = EN = GND
Eight Bits Toggling
VIN = 3.4V
VIN = GND
—
6.0 16.3(5)
at 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.
2567 tbl 07
6.21
5
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