1

PS8529

03/19/01

BEA

1

24

B9

B0

2

23

A9

A0

3

22

A8

A1

4

21

B8

B1

5

20

B7

B2

6

19

A7

A2

7

18

A6

A3

8

17

B6

B3

9

16

B5

B4

10

15

A5

A4

11

14

BEB

GND

12

13

e

m

a

N

n

i

Pn

o

it

p

i

r

c

s

e

D

B

E

B

,

A

E

B)

W

O

L

e

v

it

c

A

(

t

u

p

n

I

el

b

a

n

E

s

u

B

9

A

-

0

AA

s

u

B

9

A

-

0

BB

s

u

B

D

N

Gd

n

u

o

r

G

C

r

e

w

o

P

BEB

A9

A5

B9

B5

A4

A0

B4

B0

BEA

ProductDescription

PericomSemiconductor’sPI3VTseriesof logiccircuitsareproduced

using the Company’s advanced submicron CMOS technology,

achieving industry leading performance.

ThePI3VT3384, is a 2.5Vor 3.3V 8-bit,2-portbusswitch,is designed

with a low ON resistance (5 ohms). The switches are turned ON or

enabled by the Bus Enable (BEn) input signal.

Given a 3.3V supply and an input voltage of 3.3V, the switch

translatestoanoutputvoltageof 2.5V.Similarly,whenoperatedwith

a 2.5V supply and given 2.5V inputs, the device translates the

outputs to 1.8V.

Logic Block Diagram

ProductPinDescription

ProductPinConfiguration

ProductFeatures

• Near zero propagation delay

• Low ON resistance switches connect inputs to outputs

• 2.5VSupplyVoltageOperation

• 2.5Vor1.8Vswitching

• Packagesavailable:

–24-pin,150milwideplasticQSOP(Q)

–24-pin,173milwideplasticTSSOP(L)

Applications

• 3.3V to 2.5V level shifting (voltage translation)

• 2.5V to 1.8V level shifting (voltage translation)

20-Pin

L,Q

PI3VT3384

10-Bit, 2-Port, Low Voltage

Translator Bus Switch

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n

o

it

c

n

u

FA

E

BB

E

B4

B

-

0

B9

B

–

5

B

t

c

e

n

n

o

c

si

DH

H

Z

-i

HZ

-i

H

t

c

e

n

n

o

CL

H

4

A

-

0

AZ

-i

H

t

c

e

n

n

o

CH

L

Z

-i

H9

A

-

5

A

t

c

e

n

n

o

CL

L

4

A

-

0

A9

A

-

5

A

Notes:

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

L = Low Voltage Level; Hi-Z = High Impedance