IDT54FCT2543AT 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT2543AT Datasheet PDF : 7 Pages
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IDT54/74FCT543T/AT/CT/DT - 2543T/AT/CT
FAST CMOS OCTAL LATCHED TRANSCEIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
∆ICC
ICCD
IC
Quiescent Power Supply
Current TTL Inputs HIGH
Dynamic Power Supply Current(4)
Total Power Supply Current(6)
VCC = Max.
VIN = 3.4V(3)
VCC = Max., Outputs Open
CEAB and OEAB = GND
CEBA = VCC
One Input Toggling
50% Duty Cycle
VCC = Max., Outputs Open
fCP = 10MHz (LEAB)
50% Duty Cycle
CEAB and OEAB = GND
CEBA = VCC
One Bit Toggling
at fi = 5MHz
50% Duty Cycle
VIN = VCC
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
VCC = Max., Outputs Open
fCP = 10MHz (LEAB)
50% Duty Cycle
CEAB and OEAB = GND
CEBA = VCC
Eight Bits Toggling
at fi = 2.5MHz
50% Duty Cycle
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
FCTxxxT
FCT2xxxT
FCTxxxT
FCT2xxxT
FCTxxxT
FCT2xxxT
FCTxxxT
FCT2xxxT
FCTxxxT
FCT2xxxT
Min. Typ.(2) Max.
— 0.5 2.0
— 0.15 0.25
— 0.06 0.12
— 1.5 3.5
— 0.6 2.2
— 2.0 5.5
— 1.1 4.2
— 3.8 7.3(5)
— 1.5 4.0(5)
— 6.0 16.3(5)
— 3.8 13.0(5)
Unit
mA
mA/
MHz
mA
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.
2613 tbl 08
6.17
4
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