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8-Bit Bus Switch, 2-Enable Low 1.8V/2.5V/3.3V,

High-Bandwidth Switch, Hot Plug

2015-07-0012

PT0467-3

08/05/15

1

PI3CH3244

Features



Near-Zero propagation delay



5-ohm switches connect inputs to outputs



High signal passing bandwidth (500 MHz)



Beyond Rail-to-Rail switching

-

0 to 5V switching with 3.3V power supply

-

0 to 3.3V switching with 2.5V power supply



5V I/O tolerant with supply in OFF and ON state



1.8V, 2.5V and 3.3V supply voltage operation



Hot Insertion Capable



Industrial Operating Temperature: -40º

C to +85º

C



8kV ESD Protection (human body model)



Latch-up Performance: >200mA per JESD17



Packaging (Pb-free & Green available):

-20-pin 173-mil wide plastic TSSOP (L)

-20-pin TQFN(ZH)

Pin Configuration

Block Diagram

Description

The PI3CH3244 is a Low-voltage, 8-channel switch

designed with fast enables. The switch creates no

additional ground bounce noise or propagation delay.

The PI3CH3244 device has two active LOW

enables. It is very useful in switching signals that have

high bandwidth (500 MHz).

Applications



High Bandwidth Data Switching



Hot-Docking



Analog Signal Switching



Differential Signal Switching

Pin Description

Pin No

Pin Name

Description

1, 19

1111111

ENx

Switch Enable

2, 4, 6, 8

1A1-1A4

A Ports

3, 5, 7, 9

2B1-2B4

B Ports

10

GND

Ground

12, 14, 16,

18

1B4-1B1

B Ports

13, 15, 17,

19

2A4-2A1

A Ports

20

Power

Note:

1. H=High Voltage Level; L=Low Voltage Level

Hi-Z= High Impedance.

1B1-1B4

2B1-2B4

EN1 EN2

Function

Hi-Z

Hi-Z

H

H

Disconnect

1A1-1A4

Hi-Z

L

H

Connect

Hi-Z

2A1-2A4

H

L

Connect

1A1-1A4

2A1-2A4

L

L

Connect

TSSOP

TQFN