PI3C3245
2.5V/3.3V, High Bandwidth,
Hot Insertion, 8-Bit, 2-Port, Bus Switch
3
PS8162D
05/09/06
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PI3C3245
Com.
Parameters Description
Conditions
Min.
Max.
Units
tPLH
Propagation Delay(1,2) CL = 50pF
0.25
tPHL
Ax to Bx
RL =500-ohm
tPZH
Bus Enable Time
1.5
6.5
ns
tPZL
BE to Ax or Bx
CL = 50pF
tPHZ
Bus Disable Time
RL =500-ohm
1.5
5.5
tPLZ
BE to Ax or Bx
R = 500-ohm
Power Supply Characteristics
Parameters Description
TestConditions
(1)
Min.
Typ.(2)
Max.
Units
ICC
Quiescent Power
VCC=Max.
VIN =GND orVCC
260
500
Supply Current
ΔICC
Supply Current per
VCC = Max.
VIN = 3.0V(3)
750
Input HIGH
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 driven input (control input only); A and B pins do not contribute to
ΔICC.
Switching Characteristics over 3.3V Operating Range
μA
PI3C3245
Com.
Parameters Description
Conditions
Min.
Max.
Units
tPLH
Propagation Delay(1,2) CL = 50pF
0.25
tPHL
Ax to Bx
RL =500-ohm
tPZH
Bus Enable Time
1.5
9.8
ns
tPZL
BE to Ax or Bx
CL = 50pF
tPHZ
Bus Disable Time
RL =500-ohm
1.5
8.3
tPLZ
BE to Ax or Bx
R = 500-ohm
Switching Characteristics over 2.5V Operating Range
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.
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.
06-0244