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IDTQS32XVH2245

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

INDUSTRIALTEMPERATURERANGE

QUICKSWITCH^®PRODUCTS

IDTQS32XVH2245

2.5V / 3.3V 16-BIT HIGH

BANDWIDTH BUS SWITCH

FEATURES:

DESCRIPTION:

• N channel FET switches with no parasitic diode to VCC

– Isolationunderpower-offconditions

– No DC path to VCC or GND

TheQS32XVH2245HotSwitchisahighbandwidth,16-bitbusswitch. The

QS32XVH2245, with 25Ω ON resistance and 1.35ns propagation delay, is

idealforlinematchingandlownoiseenvironments. Theswitchescanbeturned

ONunderthecontroloftheLVTTL-compatibleOutputEnable(OEx)signalfor

bidirectionaldataflowwithnoaddeddelayorgroundbounce. IntheONstate,

theswitchescanpasssignalsupto5V. IntheOFFstate,theswitchesoffervery

highimpedenceattheterminals.

– 5V tolerant in OFF and ON state

• 5V tolerant I/Os

• Flat RON characteristics over operating range

• Rail-to-rail switching 0 - 5V

• Bidirectional dataflow with near-zero delay: no added ground

bounce

• Excellent RON matching between channels

• VCC operation: 2.3V to 3.6V

The combination of small propagation delay, high OFF impedance, and

over-voltage tolerance makes the QS32XVH2245 ideal for hot-swapping

applications.

TheQS32XVH2245ischaracterizedforoperationfrom-40°Cto+85°C.

• High bandwidth

• LVTTL-compatible control Inputs

• Undershoot Clamp Diodes on all switch and control Inputs

• Low I/O capacitance, 4pF typical

• 25Ω resistors for low noise and line matching

• Available in 40-pin QVSOP package

APPLICATIONS:

• Hot-swapping

• Low distortion analog switch

• Replaces mechanical relay

• ATM 25/155 switching

FUNCTIONALBLOCKDIAGRAM

A0

A1

A2

A3

A4

A5

A6

A7

OE

1

B

0

8

B

1

9

B

2

B

3

B

4

B

5

B

6

B7

A

A10

A11

A12

A13 A14 A15

OE

2

B8

B9

B10

B11

B12

B13 B14 B15

IDTandtheIDTlogoisaregisteredtrademarksofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

JUNE 2011

1

c

DSC-5777/14

IDTQS32XVH2245

INDUSTRIALTEMPERATURERANGE

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

ABSOLUTEMAXIMUMRATINGS⁽¹⁾

PINCONFIGURATION

Symbol

Description

SupplyVoltage to Ground

Max

–0.5 to +4.6

–0.5 to +5.5

–3

Unit

V

(2)

VTERM

(3)

VTERM

DC Switch Voltage VS

V

1

2

NC

40

39

V

CC

(3)

VTERM

DC Input Voltage VIN

V

OE1

A0

A1

A2

A3

A4

A5

A6

A7

VAC

IOUT

AC Input Voltage (pulse width ≤20ns)

DC Output Current (max. sink current/pin)

Storage Temperature

V

38

3

4

5

B

V

0

120

mA

°C

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

TSTG

–65 to +150

1

NOTES:

2

1. Stresses greater than those listed under ABSOLUTE 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.

6

3

7

4

8

5

2. V^CCterminals.

3. All terminals except V^CC.

9

6

10

11

12

13

14

15

16

17

18

19

20

GND

NC

7

CC

A

8

9

OE2

CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = 0V)

A

B

8

Symbol

CIN

Parameter⁽¹⁾

Typ.

Max. Unit

A10

A11

A12

A13

A14

A15

9

Control Inputs

3

4

8

5

6

pF

10

11

12

13

14

15

CI/O

Quickswitch Channels (Switch OFF)

Quickswitch Channels (Switch ON)

CI/O

12

NOTE:

1. This parameter is guaranteed but not production tested.

GND

PINDESCRIPTION

QVSOP

TOP VIEW

Pin Names

OEx

Description

Output Enable

Data I/Os

Ax

Bx

Data I/Os

FUNCTIONTABLE⁽¹⁾

OEx

Function

H

L

Disconnected

Connect (Ax = Bx)

NOTE:

1. H = HIGH Voltage Level

L = LOW Voltage Level

2

IDTQS32XVH2245

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

INDUSTRIALTEMPERATURERANGE

DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE

FollowingConditionsApplyUnlessOtherwiseSpecified:

Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V

Symbol

Parameter

Input HIGH Voltage

Test Conditions

Min.

1.7

2

Typ.⁽¹⁾Max.

Unit

VIH

GuaranteedLogicHIGH

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

—

27

28

25

26

—

V

forControlInputs

GuaranteedLogicLOW

forControlInputs

0V ≤ VIN ≤ VCC

VIL

InputLOWVoltage

—

18

0.7

0.8

±1

39

V

IIN

IOZ

InputLeakageCurrent(ControlInputs)

Off-StateCurrent(Hi-Z)

μA

0V ≤ VOUT ≤ 5V, Switches OFF

VIN or VOUT 0V to 5V, VCC = 0V

VCC = 2.3V

IOFF

DataInput/OutputPowerOffLeakage

VIN = 0V

ION = 30mA

ION = 15mA

ION = 30mA

ION = 15mA

RON

Switch ON Resistance

Typical at VCC = 2.5V

VCC = 3V

VIN = 1.7V

VIN = 0V

41

Ω

38

VIN = 2.4V

40

NOTE:

1. Typical values are at VCC = 3.3V and TA = 25°C.

IN

CC

TYPICAL ON RESISTANCE vs V AT V = 3.3V

40

35

RON

30

(ohms)

25

20

15

10

5

0

5

3

3.5

4

4.5

0

0.5

1

1.5

2

2.5

VIN

(Volts)

3

IDTQS32XVH2245

INDUSTRIALTEMPERATURERANGE

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

POWERSUPPLYCHARACTERISTICS

Symbol

ICCQ

Parameter

TestConditions⁽¹⁾

Min.

—

Typ.

4

Max.

8

Unit

mA

μA

Quiescent Power Supply Current

Power Supply Current ^(2,3)per Input HIGH

Dynamic Power Supply Current per Output

EnableControlInput⁽⁴⁾

VCC = Max., VIN = GND or VCC, f = 0

VCC = Max., VIN = 3V, f = 0 per Control Input

ΔICC

—

30

ICCD

VCC = 3.3V, A and B Pins Open, Control Inputs See Typical ICCD vs Enable Frequency graph below

Toggling @ 50% Duty Cycle

NOTES:

1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.

2. Per input driven at the specified level. A and B pins do not contribute to ΔIcc.

3. This parameter is guaranteed but not tested.

4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and B inputs do not contribute to the Dynamic Power Supply

Current. This parameter is guaranteed but not production tested.

CCD

CC

TYPICAL I

vs ENABLE FREQUENCY CURVE AT V = 3.3V

12

10

8

6

4

2

0

2

4

6

8

10

12

14

16

18

20

ENABLE FREQUENCY (MHz)

4

IDTQS32XVH2245

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

INDUSTRIALTEMPERATURERANGE

SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE

TA = -40°C to +85°C

VCC = 2.5 ± 0.2V ⁽¹⁾

VCC = 3.3 ± 0.3V ⁽¹⁾

(4)

Symbol

tPLH

tPHL

Parameter

DataPropagationDelay^(2,3)

Ax to/from Bx

Min.

Max.

Min.

Max.

Unit

⎯

0.9

⎯

1.35

ns

tPZL

tPZH

tPLZ

SwitchTurn-OnDelay

OEx to Ax/Bx

SwitchTurn-OffDelay

1.5

9

1.5

8

ns

1.5

7.5

tPHZ

OEx to Ax/Bx

fOEx

OperatingFrequency-Enable^(2,5)

⎯

10

⎯

20

MHz

NOTES:

1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.

2. This parameter is guaranteed but not production tested.

3. The bus switch contributes no propagation 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 1.35ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the

system. Propagation 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.

4. Minimums are guaranteed but not production tested.

5. Maximum toggle frequency for OEx control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).

5

IDTQS32XVH2245

INDUSTRIALTEMPERATURERANGE

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

SOMEAPPLICATIONSFORHOTSWITCHPRODUCTS

NFET

0 to +5V

+6.5V

Vcc = 3.3V

CHARGE PUMP

DRIVER

OE

SINGLE HOT

SWITCH

Rail-to-Rail Switching

ZERO DOWN TIME SYSTEM

PLUGGABLE CARD/ LIVE SYSTEM

ON CARD

LOGIC

CARD I/O

CPU

RAM

ON CARD

LOGIC

BUS

Hot-Swapping

6

IDTQS32XVH2245

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

INDUSTRIALTEMPERATURERANGE

TESTCIRCUITSANDWAVEFORMS

TESTCONDITIONS

VIH

VT

0V

SAME PHASE

INPUT TRANSITION

Symbol

VLOAD

VIH

VCC⁽¹⁾= 3.3V ± 0.3V

VCC⁽²⁾= 2.5V ± 0.2V

Unit

t

PHL

t

PLH

6

3

2 x Vcc

Vcc

V

VOH

VT

OUTPUT

V

VOL

VT

1.5

300

50

VCC/2

150

V

tPLH

tPHL

VIH

VT

0V

OPPOSITE PHASE

INPUT TRANSITION

VLZ

mV

pF

VHZ

150

CL

30

Propagation Delay

V

LOAD

VCC

DISABLE

ENABLE

VIH

Open

GND

CONTROL

INPUT

V

T

500Ω

0V

tPZL

tPLZ

VIN

VOUT

(1, 2)

Pulse

Generator

V

LOAD/2

D.U.T.

V

LOAD/2

OUTPUT

NORMALLY

LOW

SWITCH

CLOSED

V

T

OL +

OL

VLZ

500Ω

t

PHZ

R

T

tPZH

CL

V

OH

OUTPUT

NORMALLY

HIGH

SWITCH

OPEN

V

0V

T

VOH -VHZ

0V

Test Circuits for All Outputs

NOTE:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.

Enable and Disable Times

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

NOTES:

1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.

2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns.

SWITCHPOSITION

Test

tPLZ/tPZL

tPHZ/tPZH

tPD

Switch

VLOAD

GND

Open

7

IDTQS32XVH2245

INDUSTRIALTEMPERATURERANGE

2.5V/3.3V16-BITHIGHBANDWIDTHBUSSWITCH

ORDERINGINFORMATION

XXXXX

XX

Package

QS

X

Process

Device Type

Blank

8

Tube or Tray

Tape and Reel

Industrial (-40°C to +85°C)

Blank

40-Pin QVSOP - Green

Q2G

2.5V / 3.3V 16-Bit High Bandwidth Bus Switch

32XVH2245

DatasheetDocumentHistory

09/01/08

Pg. 4, 8

Revise ICCQ Typ. and Max. Remove non green package version and updated the ordering

informationbyremovingthe“IDT”notation.

06/14/11

Pg. 8

Updated ordering information to include tube or tray and tape & reel.

CORPORATE HEADQUARTERS

6024 Silver Creek Valley Road

San Jose, CA 95138

for SALES:

for Tech Support:

logichelp@idt.com

800-345-7015 or 408-284-8200

fax: 408-284-2775

www.idt.com

8

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