PI3C32X245 Datasheet, PDF (3/5 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V, High Bandwidth, Hot Insertion 16-Bit, 2-Port, Bus Switch

PI3C32X245
2.5V/3.3V, High Bandwidth,
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Power Supply Characteristics
Parameters Description
I_CC
Quiescent Power
Supply Current
∆I_CC
Supply Current per
Input HIGH
Test Conditions⁽¹⁾
V_CC = Max.
V_IN = GND or V_CC
V_CC = Max.
V_IN = 3.0V⁽³⁾
Min. Typ.⁽²⁾ Max.
0.5 1.0
2.5
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V_CC = 3.3V, +25°C ambient.
3. Per driven input (control input only); A and B pins do not contribute to ∆I_CC.
Switching Characteristics over 3.3V Operating Range
P_PI₁3₃C_C3₃2₂X_X22₄4₅5
Parameters
Description
Conditions
Com.
Units
Min.
Max.
t_PLH
Propagation Delay ^(2,3)
C_L = 50pF
t_PHL
Ax to Bx
R_L = 500ohm
0.25
t_PZH
Bus Enable Time
t_PZL
BE to Ax or Bx
t_PHZ
Bus Disable Time
t_PLZ
BE to Ax or Bx
C_L = 50pF
1.5
69.58
ns
R_L = 500ohm
R = 500ohm
1.5
58.53
Units
mA
Switching Characteristics over 2.5V Operating Range
PPI133CC332X224455
Parameters
Description
Conditions
Com.
Units
Min.
Max.
t_PLH
Propagation Delay ^(2,3)
C_L = 50pF
t_PHL
Ax to Bx
R_L = 500ohm
0.25
t_PZH
Bus Enable Time
t_PZL
BE to Ax or Bx
t_PHZ
Bus Disable Time
t_PLZ
BE to Ax or Bx
C_L = 50pF
1.5
9.8
ns
R_L = 500ohm
R = 500ohm
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.
3
PS8401C 09/24/04