PI3B3244 datasheet(3/5 Pages) PERICOM

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PI3B3244

3.3V, Hot Insertion

8-Bit, 2-Port NanoSwitch™

PS8149F

08/25/04

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PI3B3244

Com.

Parameters Description

Conditions(1)

Min.

Max.

Units

tPLH

Propagation Delay(2,3) CL = 50 pF,

0.25

tPHL

Ax to Bx

RL = 500Ω

tPZH

Bus Enable Time

CL = 50 pF,

1.0

4.0

tPZL

BE to Ax or Bx

RL = 500Ω,

tPHZ

Bus Disable Time

RL = 500Ω

1.0

4.5

tPLZ

BE to Ax or Bx

Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min.

Typ(2)

Max.

Units

ICC

Quiescent Power

VCC = Max.

VIN = GND or VCC

0.1

3.0

µA

Supply Current

∆ICC

Supply Current per

VCC = Max.

VIN = 3.0V(3)

750

µA

Input @ TTL HIGH

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

2. Typical values are at VCC = 3.3V, +25°C ambient.

3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.

Switching Characteristics over Operating Range

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.

ApplicationsInformation

LogicInputs

The logic control inputs can be driven up to +3.6 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-SupplySequencingandHot-PlugInformation

Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to

input/output or control pins.

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

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