Datasheet PI3C3305L, PI3C3305U, PI3C3306L, PI3C3306U Datasheet (PERICOM)

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PI3C3305

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2.5V/3.3V, High Bandwidth, Hot Insertion,

2-Bit, 2-Port Bus Switch w/ Individual Enables

PI3C3306

Product Features

 Near zero propagation delay  5 Ohm switches connect inputs to outputs  High Bandwidth (>400 MHz)  Rail-to-Rail, 3.3Vor 2.5V Switching  5V I/O Tolerant  2.5V Supply Voltage Operation  Permits Hot Insertion  Packages available:

 8-pin 173-mil wide plastic TSSOP (L)  8-pin 118-mil wide plastic MSOP (U)

Applications

 High Bandwidth Data Switching  Hot Docking

PI3C3305 Logic Block Diagram

A1

BE1

A2 B2

BE2

B1

Product Description

Pericom Semiconductors PI3C series of logic circuits are produced using the Companys advanced submicron CMOS technology, achieving industry leading speed grades.

The PI3C3305 and PI3C3306 are 2.5V or 3.3 Volt, 2-bit bus switches designed with fast individual enables. When enabled via the associated Bus Enable (BE) pin, the A pin is directly connected to the B pin for that particular gate. The bus switch introduces no additional propagation delay or additional ground bounce noise.

The PI3C3306 device has active LOW enables, and the PI3C3305 has active HIGH enables. It is very useful in switching signals that have high bandwidth (>400 MHz).

PI3C3306 Logic Block Diagram

A1

BE1

A2 B2

BE2

B1

PI3C3305 Pin Configuration PI3C3306 Pin Configuration

BE1

A1 B1

8-Pin

L,U

GND

Product Pin Description

Pin Name Description

BEn Switch Enable (PI3C3305) BEn Switch Enable (PI3C3306) A2-A1 Bus A B2-B1 Bus B V

CC

GND Ground

Power

V

CC

BE2 B2 A2

Truth Table

PI3C3305 PI3C3306

BEn BEn An Bn V

X X* Hi-Z Hi-Z GND Disconnect L H Hi-Z Hi-Z V HLBnAnV

Notes:

1. H = High Voltage Level, L = Low Voltage Level Hi-Z = High Impedance, X = Dont Care

* A pull-up resistor should be provided for power-up protection.

1

BE1

A1 B1

GND

(1)

8-Pin

L,U

V

CC

BE2 B2 A2

Function

CC

Disconnect

CC

Connect

CC

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2-Bit, 2-Port Bus Switch with Individual Enables

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) ...... 0.5V to +4.6V

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

DC Input Voltage ..................................................................... 0.5V to +5.5V

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

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

PI3C3305/PI3C3306

2.5V/3.3V, High Bandwidth, Hot Insertion,

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 Operating Range, T

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 Input LOW Current VCC = Max., VIN = GND ±1 µA High Impedance Output Current 0 ≤ A, B ≤ V Clamp Diode Voltage VCC = Min., IIN = –18m A –0.73 –1.2 V Switch On Resistance

(4)

VCC = Min., VIN = 0.0V, ION = 48mA or 60mA 5 7 Ohm

= 40°C to +85°C, VCC = 3.3V ±10%)

A

(1)

CC

Min. Typ.

(2)

Max. Units

±1

VCC = Min., VIN = 2.4V, ION = 15mA 8 1 5

Capacitance (T

Parameters C

IN

C

OFF

C

ON

= 25°C, f = 1 MHz)

A

(5)

Description Test Conditions Typ. Un i t s

Input Capacitance VIN = 0V 3.5 pF A/B Capacitance, Switch Off VIN = 0V 5.0 pF

A/B Capacitance, Switch On VIN = 0 V 10.0 pF

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 pin 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.

V

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Power Supply Characteristics

Parameters Description Test Conditions

PI3C3305/PI3C3306

2.5V/3.3V, High Bandwidth, Hot Insertion,

2-Bit, 2-Port Bus Switch with Individual Enables

(1)

Min. Typ.

(2)

Max. Units

I

CC

Quiescent Power VCC = Max. VIN = GND or V

CC

260 500

Supply Current

∆I

CC

Supply Current per VCC = Max. VIN = 3.0V

(3)

Input HIGH

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 driven input (control input only); A and B pins do not contribute to ∆ICC.

Switching Characteristics over 3.3V Operating Range

PI3C3305/PI3C3305

Com.

Parameters Description Conditions

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay A to B, B to A RL = 500Ω Bus Enable Time 1. 5 6 .5 ns

Bus Disable Time RL = 500Ω, 1.5 5.5

(2,3)

CL = 50 pF, 0.25

CL = 50 pF, R = 500Ω

(1)

Min. Max. Units

Switching Characteristics over 2.5V Operating Range

PI3C3305/PI3C3306

Com.

Parameters Description Conditions

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay A to B, B to A RL = 500Ω Bus Enable Time 1. 5 9 .8 ns

Bus Disable Time RL = 500Ω, 1.5 8.3

(2,3)

CL = 50 pF, 0.25

CL = 50 pF, R = 500Ω

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.

(1)

Min. Max. Units

µA

750

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PI3C3305/PI3C3306

2.5V/3.3V, High Bandwidth, Hot Insertion,

2-Bit, 2-Port Bus Switch with Individual Enables

, (V)

OUT

V

4.0

2.0

VCC = 3.3V

3.1V

2.9V

2.7V

2.5V

2.3V

3.8V

3.6V

3.4V

3.2V

3.0V

2.8V

0.0

1.0 2.0

3.0 4.0 5.0

VIN, (V)

Output Voltage vs. Input Voltage over Various Supply Voltages

Ordering Information

traPegakcaP-niPhtdiW

L5033C3IP)L(POSST-8lim-371

U5033C3IP)U(POSM-8lim-811

L6033C3IP)L(POSST-8lim-371

U6033C3IP)U(POSM-8lim-811

Application Information

Logic Inputs

The logic control inpus 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-toRail minimizes power consumption.

Power-Supply Sequencing

Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply VCC before applying signals to the input/output or control pins.

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd

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8-Pin TSSOP (L) Package

8

.169 .177

1

.114 .122

2.90

3.10

.0256

BSC

0.65

.007 .012

0.19

0.30

.002 .006

.047 max

1.20

0.05

0.15

4.3

4.5

SEATING

PLANE

0.45

0.75 .252

BSC

6.4

BSC

.020 .030

PI3C3305/PI3C3306

2.5V/3.3V, High Bandwidth, Hot Insertion,

2-Bit, 2-Port Bus Switch with Individual Enables

0.09

.004

0.20

.008

X.XX

DENOTES CONTROLLING

X.XX

DIMENSIONS IN MILLIMETERS

8-Pin MSOP (U) Package

BSC

0.65

.0256

8

1

.114

2.90

.122

3.10

.001

0.25 .015

0.40

.002 .005

.114 .122

2.90

3.10

0.05

0.15

.193

BSC

4.90

.043

1.10 MAX

GAUGE PLANE

0º - 6º

.003

0.07

MIN RAD.

.010

0.25

DETAIL "A"

.016 .027

0.40

0.70

15º MAX

.003

MIN RAD.

0.07

Notes:

1) Controlling Dimensions in Millimeters

2) Ref: JEDEC MO-187AA

X.XX

DENOTES DIMENSIONS

X.XX

IN MILLIMETERS

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com

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