PERIC PI3B16209 Datasheet

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PI3B16209

 

PI3B162209 (25Ω)

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3.3V, 18-Bit Bus Exchange Switch

Product Features

• Near-zero propagation delay

• 5 Ω switches connect inputs to outputs

Fast Switching speed - 5ns (max.)

Operating Range: 3.0V to 3.6V

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

Packages available:

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

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

Product Description

Pericom Semiconductor’s PI3B series of logic circuits are produced in the Company’s advanced 0.35 micron CMOS technology.

The PI3B16209 and PI3B162209 are 3.3 volt, 18-bit bus exchange switches designed with a low ON resistance (5Ω) allowing inputs to be connected directly to outputs. The devices operate as an 18-bit bus switch or as a 9-bit exchanger, providing data exchange between the four signal ports via the data select pins (S0-S2).

The PI5C162209 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

ONE OF NINE CHANNELS

1A1

 

1B1

 

 

 

 

 

1A2

 

 

 

 

 

 

1B2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW CONTROL

S0

S1

S2

Truth Table

Function

S2

S1

S0

A1

A2

 

 

 

 

 

 

Disconnect

L

L

L

Z

Z

 

 

 

 

 

 

A1 to B1

L

L

H

B1

Z

 

 

 

 

 

 

A1 to B2

L

H

L

B2

Z

 

 

 

 

 

 

A2 to B1

L

H

H

Z

B1

 

 

 

 

 

 

A2 to B2

H

L

L

Z

B2

 

 

 

 

 

 

Disconnect

H

L

H

Z

Z

 

 

 

 

 

 

A1 to B1, A2 to B2

H

H

L

B1

B2

 

 

 

 

 

 

A1 to B2, A2 to B1

H

H

H

B2

B1

Note:

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

Product Pin Configuration

S0

 

1

 

48

 

S1

1A1

 

2

 

47

 

S2

 

 

 

1A2

 

3

 

46

 

1B1

 

 

 

GND

 

4

 

45

 

1B2

 

 

 

2A1

 

5

 

44

 

2B1

 

 

 

2A2

 

6

 

43

 

2B2

 

 

 

VCC

 

7

 

42

 

GND

 

 

 

3A1

 

8

 

41

 

3B1

 

 

 

3A2

 

9

 

40

 

3B2

 

 

 

GND

 

10

 

39

 

GND

 

 

 

4A1

 

11

48-PIN 38

 

4B1

 

 

4A2

 

12

A, V

37

 

4B2

 

 

 

 

 

5A1

 

13

 

36

 

5B1

 

 

 

5A2

 

14

 

35

 

5B2

 

 

 

GND

 

15

 

34

 

GND

 

 

 

6A1

 

16

 

33

 

6B1

 

 

 

6A2

 

17

 

32

 

6B2

 

 

 

 

 

 

7A1

 

18

 

31

 

7B1

 

 

 

7A2

 

19

 

30

 

7B2

 

 

 

GND

 

20

 

29

 

GND

 

 

 

8A1

 

21

 

28

 

8B1

 

 

 

 

 

 

8A2

 

22

 

27

 

8B2

 

 

 

 

 

 

9A1

 

23

 

26

 

9B1

 

 

 

 

 

 

9A2

 

24

 

25

 

9B2

 

 

 

 

 

 

Product Pin Description

Pin Name

I/O

Description

 

 

 

S0-S2

I

Select Inputs

 

 

 

xAx

I/O

Bus A

 

 

 

xBx

I/O

Bus B

1

PS8192B

11/09/98

 

 

+ 2 hidden pages