
1
PS8421B 05/01/00
Product Description
Pericom Semiconductors PI5C series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI5C32161C is a 16- to 32-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. Precharge bias
voltage is provided on B ports to minimize live insertion noise. The
A port can handle up to 2V undershoot during switch disable.
Application
Provides PCI Hot Plugging
Logic Block Diagram
Pin Description
Product Features
R
ON
is 5 Ohm typical
Precharge on B1 and B2 ports minimizes
line insertion noise
Undershoot protection on A port only: 2V
Low Power: 70
μ
A typical
Industrial Operation Temperature: 40oC to +85oC
Near Zero propagation delay
Channel ON Capacitance: 15pF max.
V
CC
Operating Range: +3.0V to +3.6V
ESD>2000V....Human Body Model
>100 MHz switching (enable clock rate)
at 20pF load capacitance
Packages available:
56-pin plastic TSSOP (A)
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
1A
1B2
2B2
3A
3B2
4B2
5A
5B2
6B2
7A
7B2
8B2
GND
Vcc
9A
9B2
10B2
11A
11B2
12B2
13A
13B2
14B2
15A
15B2
16B2
VBIAS2
SEL2
1B1
2B1
2A
3B1
4B1
4A
5B1
6B1
6A
7B1
8B1
8A
GND
VCC
9B1
10B1
10A
11B1
12B1
12A
13B1
14B1
14A
15B1
16B1
16A
VBIAS1
SEL1
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
PI5C32161C
16-Bit to 32-Bit, Demux PCI Hot-Plug
Bus Switch with 2V Undershoot Protection
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
Pullup
16B2
SEL1
16A
1A
SEL2
VBIAS2
VBIAS1
Pullup
16B1
Pullup
1B2
VBIAS2
VBIAS1
Pullup
1B1