1

PS8532

03/19/01

VCC

NC

1

40

BE1

A0

2

39

B0

A1

3

38

B1

A2

4

37

B2

A3

5

36

B3

A4

6

35

B4

A5

7

34

B5

A6

8

33

B6

A7

9

32

B7

GND

10

31

VCC

A8

11

30

BE2

A9

12

29

B8

13

28

B9

A10

NC

14

27

B10

A11

15

26

B11

A12

16

25

B12

A13

17

24

B13

A14

18

23

B14

A15

19

22

B15

GND

20

21

40-Pin

B

BE1

A7

A0

B7

B0

BE2

A15

A8

B15

B8

BE3

A23

A16

B23

B16

BE4

A31

A24

B31

B24

ProductDescription

PericomSemiconductor’sPI3VTseriesof logiccircuitsareproduced

using the Company’s advanced submicron CMOS technology,

achieving industry leading performance.

The PI3VT32X245, is a 2.5V or 3.3V 8-bit, 2-port bus switch, 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

translates to an output voltage of 2.5V. Similarly, when operated

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

outputs to 1.8V.

Logic Block Diagram

ProductPinConfiguration

ProductFeatures

• Near zero propagation delay

• Low ON resistance switches connect inputs to outputs

• 2.5VSupplyVoltageOperation

• 2.5Vor1.8Vswitching

• Packagesavailable:

–40-pin,150milwideplasticBQSOP(B)

Applications

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

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

PI3VT32X245

16-Bit, 2-Port, Low Voltage

Translator Bus Switch

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