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PI3C34X484
3.3V, High Bandwidth, Hot Insertion
40-Bit, 2-Port, Bus Switch
Product Features
聲
聲
聲
聲
聲
聲
聲
Near-zero propagation delay
5-ohm switches connect inputs to outputs
High Bandwidth (>200 MHz)
Permits Hot Insertion.
Rail-to-Rail, 3.3V Switching
5V I/O Tolerant
Packages available:
聳 96-pin Low Profile Fine Pitch Ball Grid Array (NB96)
Product Description
Pericom Semiconductor聮s PI3C series of logic circuits are produced
using the Company聮s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3C34X484 is a 3.3 Volt, high-bandwidth 40-bit, 2-port bus
switch 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. Eight bus
enable signals are provided, one for each of the upper and lower five
bits of the four 10-bit buses.
Applications
聲 High Bandwidth Data switching
聲 Hot Docking
Logic Block Diagram
1
A
0
1
A
4
1
B
0
1
B
4
2
A
0
2
A
4
2
B
0
2
B
4
Product Pin Description
Pin Name
N
A
0
N
B
0
D e s cription
Bus A
Bus B
Bus Enable Pins (Active LO W)
Ground
Power
-
N
A
9
-
N
B
9
1
A
5
1
A
9
1
B
5
1
B
9
2
A
5
2
A
9
2
B
5
2
B
9
N
BE
A, N
BE
B
N
GN D
N
V
CC
Note:
N = 1 through 4 for each set of 10 bit buses
1
BE
A
1
BE
B
3
A
0
3
A
4
3
B
0
3
B
4
2
BE
A
2
BE
B
4
A
0
4
A
4
4
B
0
4
B
4
Truth Table
(1)
Function
Disconnect
Connect
Connect
Connect
N
BE
A
N
BE
B
B0聳 B4
Hi- Z
A
0
聳A
4
Hi- Z
A
0
聳A
4
B5聳 B9
Hi- Z
Hi- Z
A
5
聳A
9
A
5
聳A
9
H
L
H
L
H
H
L
L
3
A
5
3
A
9
3
B
5
3
B
9
4
A
5
4
A
9
4
B
5
4
B
9
3
BE
A
3
BE
B
4
BE
A
4
BE
B
Note:
1. H = High Voltage Level
X = Don聮t Care,
L = Low Voltage Level
Hi-Z = High Impedance
1
PS8406B
05/01/01
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2
3
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5
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