1

PS8169A

08/21/01

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56

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S0

1A1

1A2

2A1

2A2

3A1

3A2

GND

4A1

4A2

5A1

5A2

6A1

6A2

7A1

7A2

VCC

8A1

GND

8A2

9A1

9A2

10A1

10A2

11A1

11A2

12A1

12A2

S1

S2

1B1

1B2

2B1

2B2

3B1

GND

3B2

4B1

4B2

5B1

5B2

6B1

6B2

7B1

7B2

8B1

GND

8B2

9B1

9B2

10B1

10B2

11B1

11B2

12B1

12B2

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PI3B16213

3.3V, 24-Bit Bus-Exchange Switch

ProductDescription

PericomSemiconductor’sPI3Bseriesoflogiccircuitsareproduced

using the Company’s advanced submicron CMOS technology.

The PI3B16213 is a 3.3 volt, 24-bit bus-exchange switch designed

with a low ON resistance allowing connections to be made with

minimal propagation delay. This device operates either as a 24-bit

or as a 12-bit bus switch, providing data exchange between the four

signal ports via the data-select (S0-S2) terminals.

Product Features

• Near-zero propagation delay

• 5-ohm switches connect inputs to outputs

• Direct bus connection when switches are ON

• Fast Switching Speed: 5.5ns max.

• Industrial operating temperature: –40°C to +85°C

• Packages available:

– 56-pin 240-mil wide thin plastic TSSOP (A)

–56-pin300-milwideplasticSSOP(V)

Logic Block Diagram

ProductPinConfiguration

TruthTable

ProductPinDescription

Note:

1. H = High Voltage Level

L = Low Voltage Level

Z = High Impedance

56-Pin

A,V

1 of 12 Channels

FLOW CONTROL

XB1

XB2

XA1

XA2

S0

S1

S2

n

o

it

c

n

u

F2

S1

S0

S1

A2

A

t

c

e

n

n

o

c

si

D

LLL

Z

Z

1

B

o

t

1

AL

L

H

1

BZ

2

B

o

t

1

AL

H

L

2

BZ

1

B

o

t

2

AL

H

H

Z

1

B

2

B

o

t

2

AH

L

L

Z

2

B

2

B

d

n

a

2

A

o

t

1

AH

L

H

2

B

/

2

A2

B

/

1

A

2

B

o

t

2

A

,

1

B

o

t

1

AH

H

L

1

B2

B

1

B

o

t

2

A

,

2

B

o

t

1

A

HHH

2

B1

B

e

m

a

N

n

i

PO

/

In

o

it

p

i

r

c

s

e

D

2

S

-

0

SI

st

u

p

n

I

t

c

el

e

S

x

A

xO

/IA

s

u

B

x

B

xO

/IB

s

u

B