1

PS8139C

01/11/00

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

PI5C16292

PI5C162292 (25

Ω

Ω

Ω

Ω

Ω)

Description

Pericom Semiconductor’s PI5C series of logic circuits are produced

using the Company’s advanced 0.6 micron CMOS technology.

The PI5C16292 and PI5C162292 are 12-bit to 24-bit Mux/Demux

Bus switches designed with a low ON resistance allowing inputs

to be connected directly to outputs.

The PI5C162292 device has a built-in 25-ohm series resistor to

reduce noise resulting from reflections, thus eliminating the need

for an external terminating resistor.

A2 port is not externally connected and, as a result, has an internal

500-ohm pulldown resistor to ground.

Features

• Near-zero propagation delay

•5

Ω switches connect inputs to outputs

• Direct bus connection when switches are ON

• Internal 500

• Ultra-low quiescent power (0.2µA typical)

– Ideally suited for notebook applications

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

• Make-before-break switching

• Packages available:

– 56-pin 240-mil wide thin plastic TSSOP (A)

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

Pin Configuration

Function

S0

A1

A2

A1 to B1, A2 to B2

L

B1

B2

A1 to B2, A2 to B1

H

B2

B1

Logic Block Diagram

Product Pin Description

Pin Name

I/O

Description

S0

I

Select Inputs

xA1

I/O

Bus A

I/O

Bus B

NC

Internally pulled up thru 4.7k resistor

NC1

Leave it unconnected

Note:

1.

H = High Voltage Level

L = Low Voltage Level

Z = High Impedance

Truth Table

56-Pin

A,V

Applications

• Memory switching

1

2

3

4

5

6

7

GND

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

25

26

27

28

32

31

30

29

1

NC1

2

NC1

3

NC1

4

NC1

5

NC1

6

NC1

7

NC1

8

GND

NC1

9

NC1

10

NC1

11

NC1

12

NC1

GND

1

1

NC

2

2

3

3

4

4

5

5

6

6

7

7

8

GND

8

9

9

10

10

11

11

12

12

NC

24-Bit Mux/Demux Bus Switch

Ω