PI3C3125 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI3C3125
Pericom Semiconductor
PI3C3125 Datasheet PDF : 5 Pages
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PI3C3125/PI3C3126
2.5V/3.3V, High Bandwidth,
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PI3C3125/PI3C3126 Switching Characteristics over 3.3V Operating Range
PI3C3125/PI3C3126
Parameters Description
Conditions(1)
Com.
Min. Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3) CL = 50 pF,
A to B, B to A
RL = 500Ω
Bus Enable Time
CL = 50 pF,
Bus Disable Time
RL = 500Ω,
R = 500Ω
0.25
1.5
6.5
ns
1.5
5.5
PI3C3125/PI3C3126 Switching Characteristics over 2.5V Operating Range
PI3C3125/PI3C3126
Parameters Description
Conditions(1)
Com.
Min. Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3) CL = 50 pF,
A to B, B to A
RL = 500Ω
Bus Enable Time
Bus Disable Time
CL = 50 pF,
RL = 500Ω,
R = 500Ω
0.25
1.5
9.8
ns
1.5
8.3
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the
ON resistance of the switch and the load capacitance. The time constant for the
switch alone is of the order of 0.25ns for 50pF load. Since this time constant is
much smaller than the rise/fall times of typical driving signals, it adds very little
propagational delay to the system. Propagational delay of the bus switch when
used in a system is determined by the driving circuit on the driving side of the
switch and its interaction with the load on the driven side.
4
PS8153B 12/10/99
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