PI3B3125/PI3B3126

w/Individual Enables

4

PS8153F

09/09/04

PI3B3125 Switching Characteristics over Operating Range

Parameters

Description

PI3B3125

Units

Com.

Min.

Max.

Ax to Bx, Bx to Ax

0.25

ns

Bus Enable Time

1.0

3.0

Bus Disable Time

1.0

4.0

PI3B3126 Switching Characteristics over Operating Range

Parameters

Description

PI3B3126

Units

Com.

Min.

Max.

Ax to Bx, Bx to Ax

0.25

ns

Bus Enable Time

1.0

2.5

Bus Disable Time

1.0

4.0

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.

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

input/output or control pins.

Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd.