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4-Bit Bus Switch, Enable High 1.8V/2.5V/3.3V,

High-Bandwidth, Hot Plug

2015-07-0017

PT0472-3

08/05/15

1

PI3CH401

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):

-14-pin TSSOP (L)

Pin Configuration

Pin Description

Pin No

Pin Name

Description

1, 4, 10

1111111

Switch Enables

2, 5, 9, 12

A0-A3

A Ports

3, 6, 8, 11

B0-B3

B Ports

14

Power

7

GND

Ground

Description

The PI3CH401 is a low voltage, 4-channel switch

designed with fast individual enables. The switch

introduces no additional ground bounce noise or

additional propagation delay.

The PI3CH401 device has 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

Block Diagram

Note:

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

Hi-Z=High Impedance

2. A pull-up resistor should be provided for power-up

protection.

Ax

Bx

Function

X

(2)

Hi-Z

Hi-Z

GND

Disconnect

L

Hi-Z

Hi-Z

Disconnect

H

Bx

Ax

Connect