PI3B32X384_06 Datasheet, PDF (3/4 Pages) Pericom Semiconductor Corporation – 3.3V, 20-Bit, 2-Port NanoSwitch

PI3B32X384
3.3V, 20-Bit, 2-Port NanoSwitch™
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
I
Quiescent Power V = Max, V = GND or V
—
1.0
5.0
µA
CC
CC
IN
CC
ΔI_CC
Supply Current per V_CC = Max, V_IN = 3.0V(3)
—
—
750
µA
Notes:
1. For Max. or Min. conditons, 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 represents 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.
PI3B32X384 Switching Characteristics over Operating Range
PI3B32x384
Com.
Parameters
Description
Conditions(2,3)
Min. Max. Units
t_PLH
t_PHL
Propogation Delay^(2,3)
Ax to Bx, Bx to Ax
C_L = 50pF, R_L = 500Ω
0.25
t
PZH
t_PZL
Bus Enable Time
BE to Ax or Bx
1.0
C_L = 50pF, R_L = 500Ω
4.0
ns
t
Bus Enable Time
PHZ
R = 500Ω
1.0
3.5
t
BE to Ax or Bx
PLZ
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
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail^® minimizes power consumption.
Power-Supply Sequencing and Hot Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply V and GND before applying signals to
CC
input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
06-0312
3
PS836FF
12/04/06