PI74FCT2861TR 데이터 시트보기 (PDF) - Pericom Semiconductor
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PI74FCT2861TR Datasheet PDF : 4 Pages
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PI74FCT2861T
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Power Supply Characteristics
Parameters Description
ICC
Quiescent Power
Supply Current
∆ICC
Supply Current per
Input @ TTL HIGH
Test Conditions(1)
VCC = Max.
VIN = GND
or VCC
VCC = Max.
VIN = 3.4V(3)
Min. Typ(2) Max. Units
0.1 500 µA
0.5 2.0 mA
ICCD
Supply Current per
Input per MHz(4)
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
OE = GND; LE = Vcc
One Input Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
OE = GND; LE = Vcc
fI = 5 MHZ
One Bit Toggling
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
OE = GND; LE = Vcc
Eight Bits Toggling
fI = 2.5 MHZ
50% Duty Cycle
VIN = VCC
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
0.15 0.25 mA/
MHz
1.5 3.5(5) mA
1.8 4.5(5)
3.0 6.0(5)
5.0 14.0(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5. V, +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.
3
PS8339 09/29/98
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