1

PS8162B

12/10/99

PI3C3245

2.5V/3.3V, High Bandwidth, Hot Insertion

8-Bit, 2-Port, Bus Switch

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NC

1

20

BE

A0

2

19

B0

A1

3

18

B1

A2

4

17

B2

A3

5

16

B3

A4

6

15

B4

A5

7

14

B5

A6

8

13

B6

A7

9

12

B7

GND

10

11

Product Description

PericomSemiconductor’sPI3Cseriesoflogiccircuitsareproduced

using the Company’s advanced submicron CMOS technology,

achieving industry leading performance.

The PI3C3245 is a 2.5V or 3.3V 8-bit, 2-port bus switch designed

with a low ON resistance (5Ω) allowing inputs to be connected

directlytooutputs.Thebusswitchcreatesnoadditionalpropagational

delay or additional ground bounce noise. The switches are turned

ONbytheBusEnable(BE)inputsignal.Itisveryusefulinswitching

signals that have high bandwidth (>400 MHz).

Function

BE

A0–7

Disconnect

H

Hi-Z

Connect

L

B0–7

Note:

1. H

= High Voltage Level

L

= Low Voltage Level

Hi-Z = High Impedance

Logic Block Diagram

Product Pin Description

Pin Name

Description

BE

Bus Enable Input (Active LOW)

A0–7

Bus A

B0–7

Bus B

GND

Ground

Power

Product Pin Configuration

Product Features

• Near zero propagation delay

•5Ω switches connect inputs to outputs

• HighBandwidthOperation(>400MHz)

• Permits Hot Insertion

• 5VI/OTolerant

• Rail-to-Rail3.3Vor2.5VSwitching

• 2.5VSupplyVoltageOperation

• Packagesavailable:

–20-pin150milwideplasticQSOP(Q)

–20-pin173milwideplasticTSSOP(L)

20-Pin

L,Q

*-

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*%

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