PI3C3245_11 Datasheet, PDF (3/5 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V, High Bandwidth, Hot Insertion 8-Bit, 2-Port, Bus Switch

PI3C3245
2.5V/3.3V, High Bandwidth,
Hot Insertion, 8-Bit, 2-Port, Bus Switch
Power Supply Characteristics
Parameters Description
Test Conditions⁽¹⁾
Min
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
ΔI_CC
Supply Current
per Input HIGH
VCC = Max.
VIN = 3.0V⁽³⁾
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 (control input only); A and B pins do not contribute to ΔICC.
Typ ⁽²⁾
260
Max
500
750
Units
μA
Switching Characteristics over 3.3V Operating Range
PI3C3245
Com.
Parameters Description
Test Conditions⁽¹⁾
Min Max Units
tPLH
Propagation Delay^(1,2) C_L = 50 pF
tPHL
Ax to Bx
RL = 500Ω
0.25
tPZH
Bus Enable Time
tPZL
BE to Ax or Bx
CL = 50 pF
tPHZ
Bus Disable Time
RL = 500Ω
R = 500Ω
tPLZ
BE to Ax or Bx
1.5
6.5
ns
1.5
5.5
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 0.25 ns for 50 pF 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.
Switching Characteristics over 2.5V Operating Range
PI3C3245
Com.
Parameters Description
Test Conditions⁽¹⁾
Min Max Units
tPLH
Propagation Delay^(1,2) C_L = 50 pF
tPHL
Ax to Bx
RL = 500Ω
0.25
tPZH
Bus Enable Time
tPZL
BE to Ax or Bx
CL = 50 pF
RL = 500Ω
tPHZ
Bus Disable Time
R = 500Ω
tPLZ
BE to Ax or Bx
1.5
9.8
ns
1.5
8.3
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 0.25 ns for 50 pF 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.
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11-0112
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www.pericom.com
PS8162F
08/24/11