7028L20PFI Datasheet, PDF (4/7 Pages) Integrated Device Technology – FAST CMOS OCTAL D FLIP-FLOP WITH MASTER RESET

IDT54/74FCT273T/AT/CT
FAST CMOS OCTAL D FLIP-FLOP WITH MASTER RESET
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions⁽¹⁾
Min.
∆ICC
Quiescent Power Supply Current
VCC = Max.
—
TTL Inputs HIGH
VIN = 3.4V⁽³⁾
ICCD
Dynamic Power Supply
VCC = Max.
VIN = VCC
—
Current⁽⁴⁾
Outputs Open
VIN = GND
MR = VCC
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current⁽⁶⁾
VCC = Max.
VIN = VCC
—
Outputs Open
VIN = GND
fCP = 10MHz
50% Duty Cycle
MR = VCC
VIN = 3.4V
—
One Bit Toggling
VIN = GND
fi = 5MHz
50% Duty Cycle
VCC = Max.
VIN = VCC
—
Outputs Open
VIN = GND
fCP = 10MHz
50% Duty Cycle
MR = VCC
VIN = 3.4V
—
Eight Bits Toggling
VIN = GND
fi = 2.5MHz
50% Duty Cycle
NOTES:
1. For conditions shown as Min. or Max., 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 ∆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 = Output Frequency
Ni = Number of Outputs at fi
All currents are in milliamps and all frequencies are in megahertz.
Typ.⁽²⁾
0.5
0.15
1.5
2
3.8
6
Max.
2
0.25
3.5
5.5
7.3⁽⁵⁾
16.3⁽⁵⁾
Unit
mA
mA/
MHz
mA
4