PI3USB20LEX Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux USB 2.0 Switch w/ Single Enable

Features
• R_ON is 4Ω typical
• Low bit-to-bit skew: 200ps
• Low Crosstalk: –27dB @ 250MHz
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On-Capacitance: 6pF (typical)
• V_CC Operating Range: +3.0V to +3.6V
• 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
Block Diagram
Y₀
Y1
Y₂
Y₃
SEL
PI3USB20
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux USB 2.0 Switch w/ Single Enable
Description
The PI3USB20 is a 8- to 4-Channel multiplexer/demultiplexer Video
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 outputs from a USB Host device
to one of two corresponding outputs. 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).
Pin Description
0I0
V_DD
1
1I0
GND
2
0I1
Y₀
3
1I1
Y₁
4
2I0
3I0
Y₂
5
2I1
Y₃
6
3I1
GND
7
SEL
8
16
0^l0
15
1^I0
14
0^I1
13
1^I1
12
2^I0
11
3^I0
10
2^I1
9
3^I1
Truth Table
Function
SEL
Y_n to _nI₀
L
Y_n to _nI₁
H
1
PS8697B
02/01/05