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PI74FCT244ATS 数据表(PDF) 4 Page - Pericom Semiconductor Corporation

部件名 PI74FCT244ATS
功能描述  Fast CMOS Octal Buffer/Line Drivers
PDF  7 Pages
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制造商  PERICOM [Pericom Semiconductor Corporation]
网页  http://www.pericom.com
标志 PERICOM - Pericom Semiconductor Corporation

PI74FCT244ATS 数据表(HTML) 4 Page - Pericom Semiconductor Corporation

  PI74FCT244ATS Datasheet HTML 1Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 2Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 3Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 4Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 5Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 6Page - Pericom Semiconductor Corporation PI74FCT244ATS Datasheet HTML 7Page - Pericom Semiconductor Corporation  
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4
PS2011D
09/22/04
PI74FCT244T/2244T
PI74FCT541T/2541T
Octal Buffer/Line Drivers
Power Supply Characteristics
Parameters
Description
Test Conditions(1)
Min.
Typ(2)
Max.
Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
0.1
500
µA
ΔICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
0.5
2.5
mA
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
OEA = OEB = GND or
OEA = GND, OEB = VCC
One Bit Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
0.15
0.25
mA/
MHz
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
OEA = OEB = GND or
OEA = GND, OEB = VCC
One Bit Toggling
VIN = VCC
VIN = GND
1.5
3.5(5)
mA
VIN = 3.4V
VIN = GND
1.8
4.5(5)
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
OEA = OEB = GND or
OEA = GND, OEB = VCC
Eight Bits Toggling
VIN = VCC
VIN = GND
3.0
6.0(5)
VIN = 3.4V
VIN = GND
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 = 5.0V, +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 + ΔICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
ΔICC = 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.



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