PI5C32X384CBE Просмотр технического описания (PDF) - Pericom Semiconductor
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PI5C32X384CBE Datasheet PDF : 5 Pages
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PI5C32X384/PI5C32X384C
20-Bit, 2-Port Bus Switch
Switching Characteristics over Operating Range
Parameters
Description
Conditions(1)
PI5C32X384/PI5C32X384C
Min.
Typ.
Max.
Units
tPLH
tPHL
Propagation Delay(2,3) Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time BEx to Ax or Bx
CL = 50 pF,
RL = 500Ω
-
0.25
-
ns
1.5
-
6.5
tPHZ
tPLZ
Bus Disable Time BEx to Ax or Bx
1.5
-
5.5
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.
Package Mechanical: 48-pin TSSOP (A)
48
1
.488 12.4
.496 12.6
.236 6.0
.244 6.2
.047
1.20 Max
SEATING PLANE
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.0197
BSC
0.50
.007
.010
0.17
0.27
.002
.006
0.05
0.15
0.45 .018
0.75 .030
.319 BSC
8.1
.004 0.09
.008 0.20
4
PS7027F
09/09/04
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