PI74AVC16821 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI74AVC16821 Datasheet PDF : 10 Pages
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PI74AVC+16821
2.5V 20-Bit Bus Interface
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Timing requirements
(Over recommended operating free-air temperature range, unless otherwise noted, see Figures 1 thru 4)
fclock Clock frequency
tw Pulse duration, CLK high or low
tsu Setup time, data before CLK
th Hold time, data after CLK
VCC = 1.2V
Min. Max.
4.1
1.7
VCC = 1.5V VCC = 1.8V
± 0.1V
± 0.15V
Min. Max. Min. Max.
160
3.1
2.7
2.1
1.3
1.0
VCC = 2.5V
± 0.2V
Min. Max.
200
2.5
1.5
1.0
VCC = 3.3V
± 0.3V
Min. Max.
200
2.5
1.4
1.0
Units
ns
Switching Characteristics
(Over recommended operating free-air temperature range, unless otherwise noted, see Figures 1 thru 4)
Parameters
fmax
tpd
ten
tdis
From
(Input)
CLK
OE
OE
To
(Output)
Q
Q
Q
VCC = 1.2V
Typ.
6.8
6.8
5.4
VCC = 1.5V VCC = 1.8V
± 0.1V
± 0.15V
Min. Max. Min. Max.
160
1.5 4.5 1.2 4.0
1.6 4.5 1.6 4.0
2.5 4.2 2.3 3.6
VCC = 2.5V
± 0.2V
Min. Max.
200
0.8 3.2
0.9 3.3
1 3.4
VCC = 3.3V
± 0.3V
Min. Max.
200
0.7 2.8
0.7 3.0
1.5 3.4
Units
ns
Operating Characteristics, TA= 25°C
Parameters
Cpd Power Dissipation Capacitance
Outputs Enabled
Outputs Disabled
Test Conditions
CL = 0pF,
f = 10 MHz
VCC = 1.8V
±0.15V
Typical
90
66
VCC = 2.5V
±0.2V
Typical
100
72
VCC = 3.3V
±0.3V
Typical
110
78
Units
pF
5
PS8548 07/31/01
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