PERIC PI3B32X245 Datasheet

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PI3B32X245

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Product Features

Fast Switching Speed: 4.5ns max.

Permits Hot Insertion

Near-zero propagation delay

5Ω switches connect inputs to outputs

Direct bus connection when switches are ON

Ultra-low quiescent power (1.0µA typical)

– Ideally suited for notebook applications

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

TTL - compatible control of input levels

Packages available:

40-pin 150 mil wide plastic BQSOP (B)

Logic Block Diagram

A0

B0

A7

B4

BE1

A8

B8

A15

B15

BE2

 

3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch

Product Description

Pericom Semiconductor’s PI3B series of logic circuits are produced using the Company’s advanced submicron CMOS technology.

The PI3B32X245 is a 3.3V,16-bit, 2-port bus switch. Two enable signals (BEn) turn the switches on. The bus switch creates no additional propagational delay or additional ground bounce noise.

Product Pin Configuration

NC

 

1

 

40

 

 

VCC

 

 

 

 

A0

 

 

 

 

 

 

 

 

2

 

39

 

 

BE1

A1

 

 

38

 

 

B0

 

3

 

 

 

A2

 

 

37

 

 

B1

 

4

 

 

 

A3

 

 

36

 

 

B2

 

5

 

 

 

A4

 

 

35

 

 

B3

 

6

 

 

 

A5

 

40-Pin

34

 

B4

 

7

 

A6

 

33

 

 

B5

 

8

 

 

A7

 

9

B

32

 

 

B6

 

 

 

 

 

 

 

GND

 

 

31

 

 

B7

 

10

 

 

 

NC

 

 

30

 

 

VCC

 

11

 

 

 

A8

 

 

 

 

 

 

 

 

 

12

 

29

 

 

BE2

 

 

 

 

A9

 

 

28

 

 

B8

 

13

 

 

 

A10

 

 

27

 

 

B9

 

14

 

 

 

A11

 

 

26

 

 

B10

 

15

 

 

 

A12

 

 

25

 

 

B11

 

16

 

 

 

A13

 

 

24

 

 

B12

 

17

 

 

 

A14

 

 

23

 

 

B13

 

18

 

 

A15

 

 

22

 

 

B14

 

19

 

 

 

GND

 

 

21

 

 

B15

 

20

 

 

 

 

 

 

 

 

 

 

 

 

Truth Table(1)

Function

 

BEn

A0–15

Disconnect

 

H

Hi-Z

 

 

 

 

 

Connect

 

L

B0–15

Notes:

1.H= High Voltage Level L = Low Voltage Level Hi-Z = High Impedance

Product Pin Description

Pin Name

I/O

Description

 

 

 

 

 

 

 

 

I

Bus Enable Input (Active LOW)

BEn

A0-A15

I/O

Bus A

B0-B15

I/O

Bus B

1

PS8337A

03/31/99

 

 

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