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PI5C34171C
17-Bit to 34-Bit, Demux PCI Hot-Plug
Bus Switch with –2V Undershoot Protection
Product Features
•
•
•
•
•
•
•
•
R
ON
is 5 Ohm typical
Undershoot protection on A port only: –2V
Industrial Operation Temperature: –40ºC to +85ºC
Near Zero propagation delay
Channel ON Capacitance: 15pF max.
V
CC
Operating Range: +5V±10%
ESD>2000V....Human Body Model
>100 MHz switching (enable clock rate)
at 20pF load capacitance
• Packages:
– 56-pin plastic TSSOP (A)
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
The PI5C34171C is a 17 to 34-bit demultiplexer bus switch. It is
intended for PCI Hot-Plug applications. Industry leading advantages
include a propagation delay of 250ps, resulting from 5-Ohm channel
resistance, and low I/O Capacitance. A port demultiplexes to either
1B and 2B or to both. The switch is bidirectional. The A port can
handle up to –2V undershoot during switch disable.
Application
Provides PCI Hot Plugging
Logic Block Diagram
1A
1B1
1B2
17A
17B1
17B2
SEL1
SEL2
Pin Description
Function
nA to nB1
nA to nB2
nA to nB1 and nB2
nB1, nB2
=
Hi- Z
SEL1
L
H
L
H
SEL2
H
L
L
H
1B1
2B1
2A
3B1
4B1
4A
5B1
6B1
6A
7B1
8B1
8A
GND
V
CC
9B1
10B1
10A
11B1
12B1
12A
13B1
14B1
14A
15B1
16B1
16A
17B1
SEL1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
56-Pin
A
1A
1B2
2B2
3A
3B2
4B2
5A
5B2
6B2
7A
7B2
8B2
GND
9A
9B2
10B2
11A
11B2
12B2
13A
13B2
14B2
15A
15B2
16B2
17A
17B2
SEL2
1
PS8498A
11/15/00
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
