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PI74FCT240T Datasheet(PDF) 4 Page - Pericom Semiconductor Corporation

Part # PI74FCT240T
Description  Fast CMOS Octal Buffer/Line Drivers
PDF  6 Pages
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Manufacturer  PERICOM [Pericom Semiconductor Corporation]
Direct Link  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI74FCT240T Datasheet(HTML) 4 Page - Pericom Semiconductor Corporation

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PS2011B
12/11/00
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PI74FCT240T/241T/244T/540T/541T(25ohmSeries)
PI74FCT2240T/2241T/2244T/2541T
OctalBuffer/LineDrivers
Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
ICC
Quiescent Power
VCC = Max.
VIN = GND or VCC
0.1
500
µA
Supply Current
∆ICC
Supply Current per
VCC = Max.
VIN = 3.4V
(3)
0.5
2.5
mA
Input @ TTL HIGH
ICCD
Supply Current per
VCC = Max.,
VIN = VCC
0.15
0.25
mA/
Input per MHz
(4)
Outputs Open
VIN = GND
MHz
OEA = OEB = GND or
OEA = GND, OEB = VCC
One Bit Toggling
50% Duty Cycle
IC
Total Power Supply
VCC = Max.,
VIN = VCC
1.5
3.5
(5)
mA
Current
(6)
Outputs Open
VIN = GND
fI = 10 MHZ
50% Duty Cycle
OEA = OEB = GND or
VIN = 3.4V
1.8
4.5
(5)
OEA = GND, OEB = VCC
VIN = GND
One Bit Toggling
VCC = Max.,
VIN = VCC
3.0
6.0
(5)
Outputs Open
VIN = GND
fI = 2.5 MHZ
50% Duty Cycle
OEA = OEB = GND or
VIN = 3.4V
5.0
14.0
(5)
OEA = GND, OEB = VCC
VIN = GND
Eight Bits Toggling
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 +
∆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.



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