1
PS8453F 03/09/01
1
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
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
56
55
54
53
52
51
50
49
48
47
46
45
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41
40
39
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37
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35
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33
25
26
27
28
32
31
30
29
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.
Logic Block Diagram
Pin Description
Product Features
R
ON
is 9 ohms typical
Pullup on B1 and B2 ports
Low Power: 70A typical
Industrial Operation Temperature: 40C to +85C
Near Zero propagation delay
Switching speed: 5ns max.
Channel on capacitance: 12pF typical
V
CC
Operating Range: +2V to +3.6V
>100 MHz bandwidth (or clock rate)
at 20pF load capacitance
Package: 56-pin TSSOP (A)
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H
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PI3C32160
3.3V, High Bandwidth,16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
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56-Pin
A
Pullup
16B2
SEL1
16A
1A
SEL2
VBIAS2
VBIAS1
Pullup
16B1
Pullup
1B2
VBIAS2
VBIAS1
Pullup
1B1
2
PS8453F 03/09/01
PI3C32160
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
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Capacitance
(T
A
= 25C, f = 1 MHz)
Storage Temperature ......................................... 65C to +150C
Ambient Temperature with Power Applied .........40C to +85C
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.
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25C 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.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
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DC Electrical Characteristics
(Over the Operating Range, T
A
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CC
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BIAS
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1
PI3C32160
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
3
PS8453F 03/09/01
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Power Supply Characteristics
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25C ambient.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
Switching Characteristics over Operating Range
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.
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PS8453F 03/09/01
PI3C32160
3.3V, High Bandwidth, 16:32-Bit,
PCI Hot-Plug Mux/Demux Bus Switch
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Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
Ordering Information
.002
.006
SEATING PLANE
.007
.011
.004
.008
1
56
.236
.244
0.50
0.17
0.27
0.05
0.15
0.09
0.20
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
.018
.030
0.45
0.75
.047
Max.
1.20
6.0
6.2
.547
.555
13.9
14.1
.319
8.1
.0197
BSC
BSC
56-Pin TSSOP (A) Package
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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 V
CC
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
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