181

PS 7029A 03/13/96

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PI5B3384/3384C/32384 (25Ω

Ω

Ω

Ω

Ω)

10-BIT, 2-PORT BusSwitch

Product Description:

Pericom Semiconductor’s PI5C series of logic circuits are pro-

duced in the Company’s advanced sub-micron CMOS technology,

achieving industry performance.

The PI5C3384, PI5C3384C, and PI5C32384 are 10-bit, 2-port bus

switches designed with a low ON resistance 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. Two bus enable

signals are provided, one for each of the upper and lower five bits

of the two 10-bit buses. The PI5C32384 is designed with an internal

25

Ω resistor reducing noise reflection in high-speed applications.

Product Pin Configuration

Product Pin Description

Pin Name

Description

Bus Enable Inputs (Active LOW)

Bus A

Bus B

GND

Ground

Power

Product Features:

• Near-zero propagation delay

• Low noise, 25

Ω version (PI5C32384)

•5

Ω switches connect inputs to outputs (PI5C3384)

•

Direct bus connection when switches are ON

•

Ultra-low quiescent power (0.2 µA typical)

– Ideally suited for notebook applications

• Packages available:

– 24-pin 300-mil wide plastic PDIP (P)

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

– 24-pin 150-mil wide plastic TQSOP (R)

– 24-pin 300-mil wide plastic SOIC (S)

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Function

Disconnect

H

H

Hi-Z

Hi-Z

Connect

L

H

Hi-Z

Connect

H

L

Hi-Z

Connect

L

L

Logic Block Diagram

PI5C3384

PI5C3384C

PI5C32384 (25

Ω

Ω

Ω

Ω

Ω)

10-Bit, 2-Port BusSwitch

Note:

1. H

= High Voltage Level

X

= Don’t Care

L

= Low Voltage Level

Hi-Z = High Impedance

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

GND

Vcc