Datasheet PI3B32160A Datasheet (PERICOM)

PI3B32160

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3.3V, Low Capacitance 16-Bit to 32-Bit,
Demux PCI Hot Plug Bus Switch with

Precharged Outputs for Live Insertion

Product Features

R

is 5Ω typical

ON

 Pullup on B1 and B2 ports
 Low Power: 50µW typical
 Industrial Operation Temperature: 40ºC to +85ºC
 Near Zero propagation delay
 Switching speed: 4.5ns max.
 Channel on capacitance: 14pF max.
VCC Operating Range: 3V to +3.6V
 Package available: 56-pin TSSOP (A)

Logic Block Diagram

VBIAS1

1A

VBIAS2

VBIAS1

1B1

1B2

Product Description

Pericom Semiconductors PI3B series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.

The PI3B32160 is a 16-bit to 32-bit demultiplexer bus switch.
Industry leading advantages include a propagation delay of 250ps,
resulting from 5Ω channel resistance and low I/O capacitance.
A port demultiplexes to either 1B and 2B or to both. The switch is
bidirectional.

Application

Provides PCI Hot Plugging

Logic Inputs

The logic cotrol inputs can be driven up to +3.6V regardless of the
supply voltage. For example, given a +3.3V supply. IN may be driven
low to 0V and high to 3.6V. Driving IN Rail-to-Rail minimizes power
consumption.

Power-Supply Sequencing and OvervoltageProtection
Caution: Do not exceed the absolute maximum ratings because

stresses beyond the listed ratings may cause permanent damage to
the device.

Proper power-supply sequencing is recommended for all CMOS
devices. Always apply V
the input/output pins.

before applying V

CC

and signals to

BIAS

Pin Description

16A

VBIAS2

SEL1

SEL2

noitcnuF1LES2LES

1BnotAnLH

2BnotAnHL

1BnotAn2BndnaLL

,1BnSAIBV=2BnHH

16B1

16B2

11A

1B1
2B1

2

2A

3

3B1

4

4B1

5

4A

6

5B1

7
8

6B1

9

6A

10

7B1

11

8B1

12

8A

13

GND
VCC

9B1

10B1

10A
11B1
12B1

12A
13B1
14B1

14A
15B1
16B1

16A

VBIAS1

SEL1

56-Pin

14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

A

1

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

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

PS8420C 05/04/00

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3.3V, Low Capacitance 16-Bit to 32-Bit, Demux PCI Hot Plug
Bus Switch with Precharged Outputs for Live Insertion

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 (Inputs & VCC Only) ... 0.3V to +4.6V
Supply Voltage to Ground Potential (Outputs & D/O Only) . 0.5V to +4.6V

DC Input Voltage................................................................... 0.5V to +4.6V

DC Output Current ..............................................................................120mA

Power Dissipation ...................................................................................0.5W

PI3B32160

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.

DC Electrical Characteristics (Over the Operating Range, T

= 40°C to +85°C, VCC = 3.3V ±10%, VBIAS = 1.3V to VCC)

A

Parameters Description Test Conditions

V
V
I

IH

I

IL

I

OZH

V
R

IH

IL

IK

ON

Input HIGH Voltage Guaranteed Logic HIGH Level 2.0  
Input LOW Voltage Guaranteed Logic LOW Level 0.5  0.8
Input HIGH Current VCC = Max., VIN = V

CC

Input LOW Current VCC = Max., VIN = GND   ±1 µA
High Impedance Output Current A = 0V or VCC max., VBIAS1 = VBIAS2 = VCC max.   +1
Clamp Diode Voltage VCC = Min., IIN = 18mA  0.9 1.8 V
Switch On Resistance

(4)

VCC = Min., VIN = 0.0V,  5 7
ION = 48mA

VCC = Min., VIN = 2.4V,  9 15
ION = 15mA

Capacitance (T

Parameters

C

IN

C

OFF

C

OFF

C

ON

= 25°C, f = 1 MHz)

A

(5)

Description Test Conditions Typ. Max. Un i t s

Input Capacitance VIN = 0 V 2.6 3.2
A Capacitance, Switch Off VIN = 0 V 8.0 9.5

B Capacitance, Switch Off VIN = 0 V 4.2 4.7
A/B Capacitance, Switch On VIN = 0V 11 14

(1)

Min. Typ.

(2)

Max. Un i ts

±1

pF

V

Ω

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

PS8420C 05/04/00

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Power Supply Characteristics

PI3B32160

3.3V, Low Capacitance 16-Bit to 32-Bit, Demux PCI Hot Plug
Bus Switch with Precharged Outputs for Live Insertion

∆I

I

sretemaraPnoitpircseDsnoitidnoCtseT

I

CC

CC

DCC

rewoPtnecseiuQ

V

tnerruCylppuS

HGIHLTT@tupnI

CC

reptnerruCylppuS

V

CC

V

CC

reptnerruCylppuS

zHMreptupnI

)1(

.xaM=V

.xaM=

NI

V

NI

VroDNG=

CC

)3(

V0.3=

V=niprehto

CC

DNGro

,.xaM=

nepOsniPBdnaA

gnilggoTtupnIlortnoC

.niM.pyT

 02Aµ

 5.2Am

 52.0

)2(

.xaMstinU

/Am
zHM

elcyCytuD%05

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 (VIN = 3.0V, control inputs only); A and B pins do not contribute to ICC.

4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified
frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is
guaranteed by design.

5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.

Switching Characteristics over Operating Range

PI3B32160

Com.

= 500Ω

(1)

Min . Typ. Max. Units

Parameters Description Conditions

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay
A to B R
Bus Enable Time 1.3  4.5 n s
SEL to A,B
Bus Disable Time 1.3  4.5
SEL to A,B

(2,3)

CL= 50pF  0.25 

L

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.

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax [phone] • http://www.pericom.com

3

PS8420C 05/04/00

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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

56-Pin TSSOP (A) Package

56

PI3B32160

3.3V, Low Capacitance 16-Bit to 32-Bit, Demux PCI Hot Plug
Bus Switch with Precharged Outputs for Live Insertion

.236

6.0

.244

6.2

1

.0197
BSC

0.50

X.XX

DENOTES DIMENSIONS

X.XX

IN MILLIMETERS

Ordering Information

traPegakcaP-niPhtdiWerutarepmeT

A06123B3IP)65A(POSST-65lim-042Cº58+otCº04

.547
.555

13.9

14.1

.007
.011

0.17

0.27

1.20

.047
Max.

.002
.006

0.05

0.15

SEATING PLANE

0.45

0.75
.319

8.1

.018
.030

BSC

.004
.008

0.09

0.20

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, IN 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. Always apply VCC before applying signals to the BIAS
voltage pin and the input/output or control pins.

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 [phone] • http://www.pericom.com

4

PS8420C 05/04/00