IDT54861BLB データシートの表示（PDF） - Integrated Device Technology
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IDT54861BLB Datasheet PDF : 8 Pages
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IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC – 0.2V
Symbol
Parameter
Test Conditions(1)
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN ≥ VHC ; VIN ≤ VLC
∆ICC
ICCD
Quiescent Power Supply
Current TTL Inputs HIGH
Dynamic Power Supply Current(4)
VCC = Max.
VIN = 3.4V(3)
VCC = Max., Outputs Open
OER or OET = GND
One Input Toggling
50% Duty Cycle
VIN ≥ VHC
VIN ≤ VLC
IC
Total Power Supply Current(6)
VCC = Max., Outputs Open VIN ≥ VHC
fi = 10MHz
VIN ≤ VLC
50% Duty Cycle
(FCT)
OER or OET = GND
VIN = 3.4V
One Bit Toggling
VIN = GND
VCC = Max., Outputs Open
fi = 2.5MHz
50% Duty Cycle
VIN ≥ VHC
VIN ≤ VLC
(FCT)
OER or OET = GND
Eight Bits Toggling
VIN = 3.4V
VIN = GND
Min.
—
—
—
—
—
—
—
Typ.(2)
0.2
Max.
1.5
0.5
2.0
0.15 0.25
1.7
4.0
2.0
5.0
3.2
6.5(5)
5.2
14.5(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 + ∆ICCDHNT + 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.
Unit
mA
mA
mA/
MHz
mA
2610 tbl 06
7.23
5
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