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PI3B32X245_06 Datasheet, PDF (3/4 Pages) Pericom Semiconductor Corporation – 3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch
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PI3B32X245
3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ.(2) Max.
ICC
ΔICC
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
VCC = Max.
VCC = Max.
VIN = GND or VCC
VIN = 3.0V(3)
1.0 5.0
750
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V, control inputs only); A and B pins do not contribute to ICC.
Units
μA
μA
Switching Characteristics over Operating Range
PI3B32X245
Com.
Parameters Description
Conditions
Min.
Max.
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(1,2)
Ax to Bx, Bx to Ax
Bus Enable Time
BEx to Ax or Bx
Bus Disable Time
BEx to Ax or Bx
CL= 50pF
RL= 500Ω
0.25
1.0
4.0
1.0
4.5
Units
ns
Notes:
1. This parameter is guaranteed but not tested on Propagation Delays.
2. 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.
07-0011
3
PS8337E
11/17/06
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