PI3B3244LE datasheet(3/4 Pages) PERICOM

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PS8149H

09/27/10

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PI3B3244

3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitchTM

Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min

Typ (2)

Max

Units

ICC

Quiescent Power

Supply Current

VCC = Max.

VIN = GND or VCC

0.1

3.0

μA

ΔICC

Supply Current

per Input @ TTL

HIGH

VCC = Max.

VIN = 3.0V(3)

750

μA

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 input only); A and B pins do not contribute to ICC.

Switching Characteristics over Operating Range

Parameters Description

Test Conditions(1)

Com.

Units

Min

Max

tPLH

tPHL

Propagation Delay(2,3)

Ax to Bx

CL = 50 pF

RL = 500Ω

0.25

tPZH

tPZL

Bus Enable Time

BE to Ax or Bx

1.0

4.0

tPHZ

tPLZ

Bus Disable Time

BE to Ax or Bx

1.0

4.5

Notes:

1. See test circuit and wave forms.

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 ca-

pacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF 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 VCC and GND before applying signals to

input/output or control pins.

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

11-0003

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