PI3B32160A 参数 Datasheet PDF下载

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

PI3B32160

3.3V, Low Capacitance 16-Bit to 32-Bit,

Demux PCI Hot Plug Bus Switch with

Precharged Outputs for Live Insertion

Product Features

• R

ON

is 5Ω typical

• Pullup on B1 and B2 ports

• Low Power: 50µW typical

• Industrial Operation Temperature: –40ºC to +85ºC

• Near Zero propagation delay

• Switching speed: 4.5ns max.

• Channel on capacitance: 14pF max.

• V

CC

Operating Range: 3V to +3.6V

• Package available: 56-pin TSSOP (A)

Product Description

Pericom Semiconductor’s PI3B series of logic circuits are produced

using the Company’s advanced submicron CMOS technology,

achieving industry leading performance.

The PI3B32160 is a 16-bit to 32-bit demultiplexer bus switch.

Industry leading advantages include a propagation delay of 250ps,

resulting from 5Ω channel resistance and low I/O capacitance.

A port demultiplexes to either 1B and 2B or to both. The switch is

bidirectional.

Application

Provides PCI Hot Plugging

Logic Inputs

The logic cotrol inputs can be driven up to +3.6V regardless of the

supply voltage. For example, given a +3.3V supply. IN may be driven

low to 0V and high to 3.6V. Driving IN Rail-to-Rail minimizes power

consumption.

1B1

Logic Block Diagram

VBIAS1

1A

VBIAS2

1B2

Power-Supply Sequencing and OvervoltageProtection

Caution:

Do not exceed the absolute maximum ratings because

stresses beyond the listed ratings may cause permanent damage to

the device.

Proper power-supply sequencing is recommended for all CMOS

devices. Always apply V

CC

before applying V

BIAS

and signals to

the input/output pins.

VBIAS1

16A

VBIAS2

Pin Description

16B1

1B1 1

2B1 2

2A 3

3B1 4

4B1 5

4A 6

5B1 7

6B1 8

6A 9

7B1 10

8B1 11

8A 12

GND 13

VCC 14

9B1 15

10B1 16

10A 17

11B1 18

12B1 19

12A 20

13B1 21

14B1 22

14A 23

15B1 24

16B1 25

16A 26

VBIAS1 27

SEL1 28

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

1A

1B2

2B2

3A

3B2

4B2

5A

5B2

6B2

7A

7B2

8B2

GND

VCC

9A

9B2

10B2

11A

11B2

12B2

13A

13B2

14B2

15A

15B2

16B2

VBIAS2

SEL2

16B2

SEL1

SEL2

56-Pin

A

Function

nA to nB1

nA to nB2

nA to nB1 and nB2

nB1, nB2 = VBIAS

SEL1

L

H

L

H

SEL2

H

L

L

H

1

PS8420C

05/04/00