PI3B3257A Datasheet, PDF (3/4 Pages) Pericom Semiconductor Corporation – 3.3V, Quad 2:1 Mux/DeMux NanoSwitch

PI3B3257A
3.3V, Quad 2:1 Mux/DeMux NanoSwitch^™
Power Supply Characteristics
Parameters
Description
Test Conditions⁽¹⁾
Min. Typ.⁽²⁾ Max. Units
I_CC
∆I_CC
Quiescent Power Supply Current
Supply Current per Input @ TTL
HIGH^{(3, 4)}
V_CC = Max.
V_CC = Max.
V_IN = GND or V_CC
V_IN = 3.0
0.1 3.0
µA
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); I and Y 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 I
and Y inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
Switching Characteristics Over Operating Range
Parameters
t_IY
Description
Propagation Delay In to Yn^(2,3)
Conditions⁽¹⁾
Com.
Min.
Max.
0.25
Units
t_SY
Bus Select Time, Sn to Yn
t_PZH
t_PZL
Bus Enable Time, E to Yn
C_L = 50pF
R_L = 500Ω
1
4.5
1
4.5
ns
t_PHZ
t_PLZ
Bus Disable Time, E to Yn
1
4.8
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
switch’s time constant 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.
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_CC and GND before applying signals to
input/output or control pins.
Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd.
3
PS8758A
02/24/05