PI3C3384 Datasheet, PDF (3/4 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V, High Bandwidth, Hot Insertion 10-Bit, 2-Port, Bus Switch

PI3C3384/PI3C32384 (25Ω)
2.5V/3.3V, High Bandwidth,
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Power Supply Characteristics
Parameters
Description
Test Conditions⁽¹⁾
Min. Typ.⁽²⁾ Max. Units
I_CC
∆I_CC
Quiescent Power Supply Current
V_CC = Max.,
PI3C3384
V_IN = GND or V_CC PI3C32384
—
260 500
µA
Supply Current per Input
@ TTL HIGH
V_CC = Max.,
V_{IN =} 3.0V⁽³⁾
—
—
750
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 TTL driven input (control inputs only); A and B pins do not contribute to I_CC.
4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified
frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is
guaranteed by design.
PI3C3384/PI3C32384 Switching Characteristics over 3.3V Operating Range
Parameters
Description
Conditions⁽¹⁾
PI3C3384
Com.
PI3C32384
Com.
Units
Min. Max. Min. Max.
t_PLH
Propogation Delay^(2,3) C_L = 50pF
t_PHL
Ax to Bx, Bx to Ax
R_L = 500Ω
—
0.25
—
1.25
t_PZH
t_PZL
Bus Enable Time
BEx to Ax or Bx
C_L = 50pF
1.5
6.5
1.5
6.5
ns
R_L = 500Ω
t_PHZ
t_PLZ
Bus Disable Time
BEx to Ax or Bx
R = 500Ω
1.5
5.5
1.5
5.5
PI3C3384/PI3C32384 Switching Characteristics over 2.5V Operating Range
Parameters
Description
Conditions⁽¹⁾
PI3C3384
Com.
PI3C32384
Com.
Units
Min. Max. Min. Max.
t_PLH
Propogation Delay^(2,3) C_L = 50pF
t_PHL
Ax to Bx, Bx to Ax
R_L = 500Ω
—
0.25
—
1.25
t_PZH
t_PZL
Bus Enable Time
BEx to Ax or Bx
C_L = 50pF
1.5
9.8
1.5
9.8
ns
R_L = 500Ω
t_PHZ
t_PLZ
Bus Disable Time
BEx to Ax or Bx
R = 500Ω
1.5
8.3
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
PS8161C 02/04/00