PI3C3245L 데이터 시트보기 (PDF) - Pericom Semiconductor

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PI3C3245L

2.5V/3.3V, High Bandwidth, Hot Insertion 8-Bit, 2-Port, Bus Switch

Pericom Semiconductor 

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2.5V/3.3V, High Bandwidth, Hot Insertion

8-Bit, 2-Port, Bus Switch

Features

Description

• Near-Zero propagation delay

• 5-ohm switches connect inputs to outputs

• High Bandwidth Operation (>400 MHz)

• Permits Hot Insertion

• 5V I/O Tolerant

• Rail-to-Rail3.3Vor2.5VSwitching

Pericom Semiconductor’s PI3C3245 is a 2.5 volt or 3.3 volt 8-bit,

2-port bus switch designed with a low On-Resistance (5-ohm)

allowing inputs to be connected directly to outputs. The bus switch

creates no additional propagational delay or additional ground

bounce noise. The switches are turned ON by the Bus Enable (BE)

input signal. It is very useful in switching signals that have high

bandwidth (>400 MHz).

• 2.5V Supply Voltage Operation

• Packaging (Pb-free & Green available):

– 20-pin 150 mil wide plastic QSOP (Q)

– 20-pin 173 mil wide plastic TSSOP (L)

Block Diagram

Pin Configuration

NC 1

20 VCC

A0

B0

A0 2

19 BE

A1 3

18 B0

A2 4

17 B1

A7

B7

A3 5

16 B2

A4 6

15 B3

A5 7

14 B4

BE

A6 8

13 B5

A7 9

12 B6

GND 10

11 B7

Truth Table(1)

Function

BE A0–7

Disconnect

H Hi-Z

Connect

L B0–7

Note:

1. H =

L=

Hi-Z =

High Voltage Level

Low Voltage Level

High Impedance

Pin Description

Pin Name

Description

BE

Bus Enable Input (Active LOW)

A0–7

Bus A

B0–7

Bus B

GND

Ground

VCC

Power

06-0244

1

PS8162D 05/09/06

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