1

PS8697A

07/23/04

Features

• Low bit-to-bit skew: 200ps

• Low Crosstalk: –27dB @ 250MHz

• Near-Zero propagation delay: 250ps

• Switching speed: 9ns

• Channel On-Capacitance: 6pF (typical)

• ESD>2000V . . . Human Body Model

• >500 MHz bandwidth (or data frequency)

• Package (Pb-free & Green available):

-16-pin, 173-mil wide plastic TSSOP (L)

Application

• Routes signals for USB 2.0

Description

Pericom Semiconductor’s PI3USB series of logic circuits are

produced using the Company’s advanced sub-micron CMOS

technology, achieving industry leading performance.

ThePI3USB20isa8-to4-Channelmultiplexer/demultiplexerVideo

Switch with Hi-Z outputs. Industry leading advantages include a

propagation delay of less than 250ps, resulting from its low channel

resistance and I/O capacitance. The device multiplexes differential

outputsfromaUSBHostdevicetooneoftwocorrespondingoutputs.

The switch is bidirectional and offers little or no attenuation of the

high-speed signals at the outputs. It is designed for low bit-to-bit

skew, high channel-to-channel noise isolation and is compatible

with various standards, such as high speed USB 2.0 (480 Mb/s).

Block Diagram

Pin Description

PI3USB20

3.3V, Wide Bandwidth, 4-Channel,

2:1 Mux/DeMux USB 2.0 Switch w/ Single Enable

SEL

Truth Table

Function

SEL

L

H

GND

GND

SEL

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9