PI3C32X245 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 2.5V/3.3V, High Bandwidth, Hot Insertion 16-Bit, 2-Port, Bus Switch

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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-Rail3.3Vor2.5VSwitching
• 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
Pin Configuration
A0
B0
A7
B7
BE1
A8
B8
A15
B15
BE2
Truth Table⁽¹⁾
Function
Disconnect
Connect
BE_N A0–15
H Hi-Z
L B0–15
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
NC
A0
A1
A2
A3
A4
A5
A6
A7
GND
NC
A8
A9
A10
A11
A12
A13
A14
A15
GND
1
40
2
39
3
38
4
37
5
36
6
35
7
34
8
33
9
32
10 ^40-Pin 31
11 ^B 30
12
29
13
28
14
27
15
26
16
25
17
24
18
23
19
22
20
21
VCC
BE1
B0
B1
B2
B3
B4
B5
B6
B7
VCC
BE2
B8
B9
B10
B11
B12
B13
B14
B15
Pin Description
Pin Name
I/O
BE_N
I
A0–A15
I/O
B0–B15
I/O
Description
Bus Enable Input (Active LOW)
Bus A
Bus A
1
PS8401C 09/24/04