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PI3C32X245
2.5V/3.3V, High Bandwidth, Hot Insertion
16-Bit, 2-Port, Bus Switch
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Permits Hot Insertion
• 5V I/O Tolerant
• 2.5V Supply Voltage Operation
• Rail-to-Rail 3.3Vor 2.5V Switching
• High Bandwidth Operation (>400 MHz)
• Packaging (Pb-free & Green available)
– 40-pin, 150-mil-wide plastic BQSOP (B)
Description
Pericom Semiconductor’s PI3C32X245 is a 2.5V or 3.3V 16-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
N
) input
signal. It is very useful in switching signals that have high bandwidth
(>400 MHz).
Block Diagram
A
0
B
0
Pin Configuration
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
NC
A
8
A
9
A
10
A
11
A
12
A
13
A
14
A
15
GND
1
2
3
4
40
39
V
CC
BE1
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
V
CC
BE2
B
8
B
9
B
10
B
11
B
12
B
13
B
14
B
15
A
7
BE
1
A
8
B
7
B
8
A
15
BE
2
B
15
38
37
5
36
6
35
34
7
33
8
32
9
10
40-Pin
31
B
30
11
29
12
28
13
27
14
26
15
16
17
18
19
20
25
24
23
22
21
Truth Table
Function
Disconnect
Connect
(1)
BE
N
A0–15
H
L
Hi-Z
B0–15
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Pin Description
Pin Name
BE
N
A0–A15
B0–B15
I/O
I
I/O
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus A
1
PS8401C
09/24/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
