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PI5C3401Q

6-Bit, 3-Port Bus Exchange Switch

Pericom Semiconductor Corporation 

PI5C3401

6-Bit, 3-Port Bus Exchange Switch

Features:

• Near-Zero propagation delay

• 5-ohm switches connect inputs to outputs

• Direct bus connection when switches are ON

• Ultra Low Quiescent Power (0.2μA typical)

– Ideally suited for notebook applications

• Packaging (Pb-free & Green available):

– 24-pin 150-mil wide plastic QSOP (Q)

– 24-pin 300-mil wide plastic SOIC (S)

Block Diagram

B0

A0

Description:

Pericom Semiconductor’s PI5C3401 is a 6-bit, 3-port bus exchange

switch designed with a low On-Resistance (5-ohm) allowing inputs

to be connected directly to outputs. The bus switch creates no

additional propagation delay or additional ground bounce noise.

The switches are turned OFF by S0 = H and S1 = H. The A bus

can be connected to B bus by S0 = L and S1 = L. The B bus can

be connected to C bus by S0 = H and S1 = L. The C bus can be

connected to A bus by S0 = L and S1 = H.

Pin Configuration

C0

B5

A5

C5

S0

DECODER

S1

Truth Table(1)

Function

S0 S1 A0–5 B0–5

Disconnect

H H Hi-Z Hi-Z

Connect A-B

L L B0–5 A0–5

Connect B-C

H L Hi-Z C0–5

Connect C-A

L H C0–5 Hi-Z

Note:

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

Hi-Z = High Impedance

C0–5

Hi-Z

Hi-Z

B0–5

A0–5

Pin Description

Pin Name

S0, S1

A0–5

B0–5

C0–5

NC

GND

VCC

Description

Bus Direction

Bus A

Bus B

Bus C

No Connect

Ground

Power

07-0127

1

PS7020E

05/02/07

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