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PI74FCT377T Datasheet(PDF) 3 Page - Pericom Semiconductor Corporation

Part No. PI74FCT377T
Description  FAST CMOS OCTAL D FLIP-FLOP WITH CLOCK ENABLE
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Maker  PERICOM [Pericom Semiconductor Corporation]
Homepage  http://www.pericom.com
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PI74FCT377T Datasheet(HTML) 3 Page - Pericom Semiconductor Corporation

   
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PI74FCT377T
OCTAL D FLIP-FLOP with CLOCK ENABLE
3
PS2017A 03/11/96
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Switching Characteristics over Operating Range
377T
377AT
377CT
377DT
Com.
Com.
Com.
Com.
Parameters
Description
Conditions(1)
Min
Max
Min
Max
Min
Max
Min
Max
Unit
tPLH
Propagation Delay
CL = 50 pF
2.0
13.0
2.0
7.2
2.0
5.2
2.0
4.5
ns
tPHL
CP to ON
RL = 500
tSU
Setup Time, HIGH or LOW
2.5
2.0
2.0
2.0
ns
Dn to CP
tH
Hold Time, HIGH or LOW
2.0
1.5
1.5
1.5
ns
Dn to CP
tSU
Setup Time HIGH or LOW
4.0
3.5
3.5
2.0
ns
CE to CP
tH
Hold Time HIGH or LOW
1.5
1.5
1.5
1.5
ns
CE to CP
tW
Clock Pulse Width(3)
7.0
6.0
6.0
3.0
ns
HIGH or LOW
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter guaranteed but not production tested.
Notes:
1. For conditions shown as Max. or Min., 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.)
Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
ICC
Quiescent Power
VCC = Max.
VIN = GND
0.1
500
µA
Supply Current
or VCC
∆ICC
Supply Current per
VCC = Max.
VIN = 3.4V(3)
0.5
2.0
mA
Input @ TTL HIGH
ICCD
Supply Current per
VCC = Max., Outputs Open
VIN = VCC
0.15
0.25
mA/
Input per MHz(4)
CE = GND
VIN = GND
MHz
One Input Toggling
50% Duty Cycle
IC
Total Power Supply
VCC = Max., Outputs Open
VIN = VCC
1.57
3.5(5)
mA
Current(6)
fCP = 10 MHZ, 50% Duty Cycle
VIN = GND
CE = GND
VIN = 3.4V
50% Duty Cycle
VIN = GND
2.0
5.5(5)
One Bit toggling at fI = 5 MHZ
VCC = Max., Outputs Open
VIN = VCC
3.8
7.3(5)
fCP = 10 MHZ, 50% Duty Cycle
VIN = GND
CE = GND
VIN = 3.4V
Eight Bits toggling at fI = 2.5 MHZ VIN = GND
6.0
16.3(5)
50% Duty Cycle


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