PERIC PI3B3125L, PI3B3125Q, PI3B3125W, PI3B3126L, PI3B3126Q, PI3B3126W Datasheet

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PI3B3125

 

PI3B3126

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3.3V, Hot Insertion, 4-Bit, 2-Port Bus Switch with Individual Enables

ProductFeatures

Near zero propagation delay

5 Ohm switches connect inputs to outputs

Fast Switching Speed - 4ns max.

Permits Hot Insertion

Ultra Low Quiescent Power (0.1µA Typical)

Ideally suited for notebook applications

Packages available:

14-pin 150 mil wide plastic SOIC (W)

14-pin 170 mil wide plastic TSSOP (L)

16-pin 150 mil wide plastic QSOP (Q)

ProductDescription

Pericom Semiconductor’s PI3B series of logic circuits are produced using the Company’s advanced sub micron CMOS technology, achieving industry leading speed grades.

ThePI3B3125andPI3B3126are3.3Volt, 4-bitbus switchesdesigned with four individual 5Ohm bus switches with fast indiviual enables in an industry standard 74XX125/126 pinout. When enabled via the associated Bus Enable (BE) pin, the “A” pin is directly connected to the “B” pin for that particular gate. The bus switch introduces no additional propagation delay or additional ground bounce noise.

ThePI3B3125devicehas activeLOWenables,andthePI3B3126 has active HIGH enables.

PI3B3125 Logic Block Diagram

 

PI3B3126 Logic Block Diagram

 

A0

B0

A0

B0

BE0

 

BE0

 

A1

B1

A1

B1

BE1

 

BE1

 

A2

B2

A2

B2

BE2

 

BE2

 

A3

B3

A3

B3

BE3

 

BE3

 

1

PS8153D

01/05/00

 

 

 

PI3B3125/PI3B3126

 

3.3V, Hot Insertion, 4-Bit,

 

2-PortBusSwitch

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Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

Storage Temperature ..........................................................

–65°C to +150°C

Ambient Temperature with Power Applied ..........................

–40°C to +85°C

Supply Voltage to Ground Potential (Inputs & VCC Only) ...

–0.5V to +4.6V

Supply Voltage to Ground Potential (Outputs & D/O Only) . –0.5V to +4.6V

DC Input Voltage ...................................................................

–0.5V to +4.6V

DC Output Current ..............................................................................

120mA

Power Dissipation ...................................................................................

0.5W

Note:

Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

PI3B3125 14-Pin

 

 

 

 

 

 

PI3B3126 14-Pin

 

 

 

Product Pin Configuration

 

Product Pin Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BE0

 

 

1

14

 

 

Vcc

 

BE0

 

1

14

 

 

Vcc

 

 

 

 

 

 

 

 

 

 

A0

 

 

2

13

 

 

 

BE3

 

 

A0

 

2

13

 

 

BE3

 

 

 

 

 

 

 

 

 

 

 

 

 

B0

 

3

14-PIN 12

 

 

A3

 

B0

 

3

14-PIN 12

 

 

A3

 

 

 

 

 

 

 

 

 

 

 

BE1

 

 

 

4

L 11

 

 

B3

 

BE1

 

 

4

W,L 11

 

 

B3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W,14

 

 

 

 

 

 

 

 

 

 

W14

 

 

 

 

 

 

 

 

5

 

 

BE2

 

 

 

 

5

 

 

BE2

 

A1

 

10

 

 

 

A1

 

10

 

 

 

 

 

 

 

 

 

 

 

 

B1

 

6

9

 

 

A2

 

B1

 

6

9

 

 

A2

 

 

 

 

 

 

 

 

 

GND

 

7

8

 

 

B2

 

GND

 

7

8

 

 

B2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PI3B3125 16-Pin

Product Pin Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

 

 

1

 

16

 

 

Vcc

 

 

 

 

 

 

BE0

 

 

 

2

 

15

 

 

 

BE3

 

 

 

 

 

 

 

A0

 

 

3

16-PIN 14

 

 

A3

 

 

 

 

 

B0

 

 

4

Q

13

 

 

B3

 

 

 

 

 

 

 

 

 

 

 

 

Q16

 

 

 

 

 

 

BE1

 

 

 

5

 

12

 

 

BE2

 

 

 

 

 

 

A1

 

6

 

11

 

 

A2

 

 

 

 

 

 

B1

 

7

 

10

 

 

B2

 

 

 

 

GND

 

8

 

9

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PI3B3126 16-Pin

Product Pin Configuration

 

 

 

 

 

 

 

 

 

NC

 

 

1

 

16

 

 

Vcc

 

 

 

 

BE0

 

 

2

 

15

 

 

BE3

 

 

 

 

A0

 

 

3

16-PIN

14

 

 

A3

 

 

 

B0

 

 

4

Q

13

 

 

B3

BE1

 

 

5

Q16

12

 

 

BE2

 

 

 

 

A1

 

6

 

11

 

 

A2

 

 

 

 

B1

 

7

 

10

 

 

B2

 

 

 

 

GND

 

8

 

9

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Product Pin Description

 

PinName

Description

 

 

 

 

 

 

SwitchEnable(PI3B3125)

 

BEn

 

 

BEn

SwitchEnable(PI3B3126)

 

 

 

 

 

A3-A0

Bus A

 

 

 

 

 

B3-B0

Bus B

 

 

 

 

 

VCC

Power

 

GND

Ground

 

 

 

 

Truth Table(1)

PI3B3125

PI3B3126

 

 

 

 

BEn

BEn

An

Bn

Vcc

Function

X*

X

Hi-Z

Hi-Z

GND

Disconnect

H

L

Hi-Z

Hi-Z

VCC

Disconnect

L

H

Bn

An

VCC

Connect

Notes:

1.H = High Voltage Level, L = Low Voltage Level HI-Z = High Impedance, X = Dont Care

* A pull-up resistor should be provided for power-up protection.

2

PS8153D

01/05/00

 

 

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