
PI3C32160
3.3V, High Bandwidth,16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
Product Features
RON is 9 ohms typical
Pullup on B1 and B2 ports
Low Power: 70µA typical
Industrial Operation Temperature: 40ºC to +85ºC
Near Zero propagation delay
Switching speed: 5ns max.
Channel on capacitance: 12pF typical
VCC Operating Range: +2V to +3.6V
>100 MHz bandwidth (or clock rate)
at 20pF load capacitance
Package: 56-pin TSSOP (A)
Logic Block Diagram
VBIAS
1
Pullup
1A
VBIAS
2
Pullup
VBIAS
1
Pullup
16A
VBIAS
2
Pullup
SEL
1
SEL
2
noitcnuFLES
BnotAn
1
BnotAn
2
BnotAn
Bndna
1
2
1
LH
HL
LL
1B1
1B2
16B1
16B2
Product Description
Pericom Semiconductors PI3C series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI3C32160 is a 16- to 32-bit demultiplexer bus switch. Industry
leading advantages include a propagation delay of 500ps, resulting
from 9 ohms channel resistance and low I/O capacitance. A port
demultiplexes to either 1B or 2B and the switch is bidirectional.
Application
PCI Hot Plugging.
Pin Description
1B1
1
2
2B1
3
2A
4
3B1
5
4B1
6
4A
7
5B1
8
6B1
9
6A
10
7B1
11
8B1
12
8A
13
GND
14
VCC
15
9B1
10A
12A
14A
16A
16
17
18
19
20
21
22
23
24
25
26
27
28
10B1
11B1
12B1
13B1
14B1
LES
2
15B1
16B1
VBIAS1
SEL1
56-Pin
A
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
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
,Bn
Bn
1
V=
2
SAIB
HH
1
PS8453F 03/09/01

Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ......................................... 65°C to +150°C
Ambient Temperature with Power Applied ......... 40°C to +85°C
Supply Voltage to Ground Potential .................... 0.5V to +4.6V
DC I/O Voltage ....................................................... 0.5V to 5.5V
DC Output Current ........................................................... 120mA
Power Dissipation .............................................................. 0.5W
Note:
Stresses greater than those listed under MAXIMUM RATINGS
may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
PI3C32160
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
DC Electrical Characteristics (Over the Operating Range, T
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V
HI
V
LI
I
HI
I
LI
I
HZO
I
O
V
KI
R
NO
Capacitance (T
sretemaraP
C
NI
C
FFO
C
NO
= 25°C, f = 1 MHz)
A
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tnerruCHGIHtupnIV
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CC
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CC
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V
CC
I
NO
V,.xaM=
V,.xaM=
CC
CC
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NI
V,.niM=
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I,.niM=
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Am51=
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ecnaticapaCtupnI5.3
ffOhctiwS,ecnaticapaCB/A
ffOhctiwS,ecnaticapaCB/A0.21
= 40°C, VCC = 3.3V ±10%, V
A
)1(
V=
NI
CC
DNG=1±Aµ
NI
V,.xam
V,.xam
V=
1SAIB
V=
1SAIB
V=
2SAIB
CC
V=
2SAIB
CC
= 1.3V to VCC)
BIAS
.niMpyT
1±Aµ
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Am81=37.02.1V
Am0.0=
Am46roAm84=
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NI
0.921 Ω
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0.4
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Fp
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Measured by the voltage drop between A and B pins at indicated current through the switch. ON resistance is determined by the
lower of the voltages on the two (A & B) pins.
5. This parameter is determined by device characterization but is not production tested.
2
PS8453F 03/09/01

Power Supply Characteristics
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PI3C32160
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
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I
CC
CC
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CC
V
NI
V
CC
V
NI
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Switching Characteristics over Operating Range
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moC
sretemaraPnoitpircseDsnoitidnoC
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t
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Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load capacitance.
The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the rise/fall
times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used
in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
3
PS8453F 03/09/01

56-Pin TSSOP (A) Package
56
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
.236
6.0
.244
6.2
PI3C32160
1
X.XX
DENOTES DIMENSIONS
X.XX
IN MILLIMETERS
.0197
BSC
0.50
.547
.555
13.9
14.1
.007
.011
0.17
0.27
1.20
.047
Max.
.002
.006
0.05
0.15
SEATING PLANE
.018
0.45
.030
0.75
.319
BSC
8.1
.004
.008
0.09
0.20
Ordering Information
traPegakcaP-niPhtdiWerutarepmeT
A06123C3IP)A(POSST-65lim-042C°58otC°0
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output enables
or select pins may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing
Proper power-supply sequencing is recommended for all CMOS devices. It is recommended to always apply VCC before applying signals
to input/output or control pins.
Hot Insertion
For Datacom and Telecom applications that have 10 or more volts passing through the backplane or system bus, a high voltage from the
power supply may be seen at the device input pins during Hot Insertion. The PI3Cxxx devices have maximum limits of 5.5V and 120mA for
20ns. If the power is higher or applied for a longer period of time or repeatedly reaches the maximum limits, the devices can be damage.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
4
PS8453F 03/09/01