PI3B16209A 参数 Datasheet PDF下载

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

PI3B16210

PI3B162210 (25 Ohms)

3.3V, Hot Insertion 20-Bit, 2-Port BusSwitch

Product Description

Product Features

•

•

•

•

•

•

•

•

Near-zero propagation delay

5-ohm or

25-ohm

switches connect inputs to outputs

Fast Switching Speed: 4.5ns max.

32x384 function with flow-through pinout make board

layout easier

Permits Hot Insertion.

V

CC

Operating Range: 3.0V to 3.6V

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

Packages available:

– 48-pin 150-mil wide plastic BQSOP (B)

– 48-pin 240-mil wide plastic TSSOP (A)

– 48-pin 300-mil wide plastic SSOP (V)

Pericom Semiconductor’s PI3B series of BusSwitch circuits are

produced using the Company’s advanced submicron CMOS

technology, achieving industry leading speed.

The PI3B16210 is configured as a 3.3 volt 20-bit, 2-port bus switch

designed with a low ON resistance (5 ohms) allowing inputs to be

connected directly to outputs. The bus switch creates no additional

propagational delay or additional ground bounce noise. Switches

are turned ON by the Bus Enable (xOE) input signal.

The PI3B162210 device has a built-in 25-ohm series resistor to

reduce noise resulting from reflections, thus eliminating the need

for an external terminating resistor.

Logic Block Diagram

1A1

1B1

Product Pin Configuration

NC

1A

1

1A

2

1A

3

1A

4

1A

5

1A

6

GND

1A

7

1A

8

1A

9

1A

10

2A

1

2A

2

V

CC

2A

3

GND

2A

4

2A

5

2A

6

2A

7

2A

8

2A

9

2A

10

1

2

3

4

5

6

7

8

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

1OE

2OE

1B

1

1B

2

1B

3

1B

4

1B

5

GND

1B

6

1B

7

1B

8

1B

9

1B

10

2B

1

2B

2

2B

3

GND

2B

4

2B

5

2B

6

2B

7

2B

8

2B

9

2B

10

1A10

1B10

1OE

2A1

2B1

48-Pin

A, B,

V

12

2A10

2B10

2OE

Truth Table

(1)

Inputs

1OE

L

L

H

H

2OE

L

H

L

H

Inputs /Outputs

1A,1B

1A = 1B

1A = 1B

Z

Z

2A,2B

2A = 2B

Z

2A = 2B

Z

Product Pin Description

Pin Name

1O E, 2O E

1A1- 1A10, 2A1- 2A10

1B1 - 1B10, 2B1 - 2B10

1

D e s cription

Bus Enable Inputs (Active LO W)

Bus A

Bus B

PS8193B

08/20/01

Note:

1. H = High Voltage Level

L = Low Voltage Level

Hi-Z = High Impedance