PERIC PI3B162244, PI3B16244 Datasheet

Loading...

 

PI3B16244

 

PI3B162244 (25Ω)

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901

2123456789012

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901

2123456789012

3.3V, Hot Insertion, 16-Bit, 4-Port BusSwitch

Product Features

Near-zero propagation delay

5 Ω switches connect inputs to outputs when enabled

Fast Switching Speed - 4ns max.

Permits Hot Insertion

Pin compatible with 74 series16244

Operating Vcc: 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 using the Company’s advanced 0.35 micron CMOS technology.

The PI3B16244 and PI3B162244 are 16-bit, 4-port bus switches that are pin compatible with the 74 series 16244 16-bit driver. Four enable signals (nBE) turn the switches on similar to the enable signals of the 16244. The bus switches create no additional propagation delay or ground bounce noise.

The PI3B162244 device has a built-in 25-ohm series resistor to reduce noise because of reflections, thus eliminating the need for an external terminating resistor.

Logic Block Diagram

1BE

 

 

 

 

 

3BE

 

 

 

 

 

1A0

 

 

 

 

1B0

3A0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1A1

 

 

 

 

1B1

3A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1A2

 

 

 

 

1B2

3A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1A3

 

 

 

 

1B3

3A3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2BE

 

 

 

 

 

4BE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2A0

 

 

 

 

2B0

4A0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2A1

 

 

 

 

2B1

4A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2A2

 

 

 

 

2B2

4A2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2A3

 

 

 

 

2B3

4A3

 

 

 

 

Truth Table(1)

 

 

 

 

 

Function

nBE

nA0–7

Disconnect

 

H

Hi-Z

 

 

 

 

 

Connect

 

L

nB0–7

Note: 1. H = High Voltage Level

L = Low Voltage Level

Hi-Z = High Impedance

Product Pin Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1BE

 

1

 

48

 

2BE

 

 

 

 

 

 

 

1B0

 

2

 

47

 

1A0

 

 

 

 

 

3B0

 

1B1

 

3

 

46

 

1A1

 

 

 

 

 

GND

 

4

 

45

 

GND

 

 

 

 

3B1

 

1B2

 

5

 

44

 

1A2

 

 

 

 

 

1B3

 

6

 

43

 

1A3

 

 

 

 

3B2

 

VCC

 

7

 

42

 

VCC

 

 

 

 

 

2B0

 

8

 

41

 

2A0

 

 

 

 

 

 

2B1

 

9

 

40

 

2A1

 

 

 

 

 

3B3

 

GND

 

10

48-Pin

39

 

GND

 

 

 

 

 

2B2

 

11

38

 

2A2

 

 

 

 

 

 

2B3

 

12

A, V

37

 

2A3

 

 

 

 

 

 

 

3B0

 

13

 

36

 

3A0

 

 

 

 

 

4B0

 

3B1

 

14

 

35

 

3A1

 

 

 

 

 

GND

 

15

 

34

 

GND

 

 

 

 

4B1

 

3B2

 

16

 

33

 

3A2

 

 

 

 

 

3B3

 

17

 

32

 

3A3

 

 

 

 

4B2

 

VCC

 

18

 

31

 

VCC

 

 

 

 

 

4B0

 

19

 

30

 

4A0

 

 

 

 

4B3

 

4B1

 

20

 

29

 

4A1

 

 

 

 

 

GND

 

21

 

28

 

GND

 

 

 

 

 

 

4B2

 

22

 

27

 

4A2

 

 

 

 

 

 

 

4B3

 

23

 

26

 

4A3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4BE

 

24

 

25

 

3BE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Product Pin Description

Pin Name

I/O

Description

 

 

 

 

 

 

 

 

nBE

I

Bus Output Enable

 

 

 

 

(Active LOW)

 

 

 

nA0-nA7

I/O

Bus A

 

 

 

nB0-nB7

I/O

Bus B

1

PS8170B

11/06/98

 

 

+ 2 hidden pages