FEATURES:

DESCRIPTION:

• Patented technology
• High signal -3db passing bandwidth at 1.4GHz
• Near-Zero propagation delay
• VCC = 1.65V to 3.6V
• Ultra-Low Quiescent Power: 0.1 A typical
• Ideally suited for low power applications
• Industrial operating temperature: -40

°C to +85°C

• Available in 14 pin TSSOP package

Potato Semiconductor’s PO3B3126A is
designed for world top performance using
submicron CMOS technology to achieve GHz
high bandwidth.

The PO3B3126A is a High-Bandwidth, 4-Bit, 
2-Port Bus Switch w/ Individual Enables Bus Switch.
The switch introduces no additional ground bounce
noise or propagation delay

.

Pin Configuration

Block Diagram

Pin Description

Truth Table

A0

A1

A2

BE0

BE1

A3

BE2

BE3

B0

B1

B2

B3

SW

SW

SW

SW

A

B

BE

SW

1

2

3

4

5

6

7

14

13

12

11

10

9

8

V

CC

BE3

A3

B3

BE2

A2

B2

BE0

A0

B0

BE1

A1

B1

GND

Pin Name

Description

BE

N

Switch Enable

A

3

-A

0

Bus A

B

3

-B

0

Bus B

V

CC

Power

GND

Ground

A

N

B

N

V

CC

Function

X

Hi-Z Hi-Z GND

Disconnect

H

Hi-Z Hi-Z V

CC

Disconnect

L

Bn

An

V

CC

Connect

BE

N

High-Bandwidth, 4-Bit, 2-Port Bus Switch w/ Individual Enables

High Bandwidth Potato Chip 

1

01/01/10

Potato Semiconductor Corporation

PO3B3126A

www.potatosemi.com

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 Input Voltage ........................................................ –0.5V to +Vcc
DC Output Current................................................................... 120mA
Power Dissipation ....................................................................... 0.5W

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

DC Electrical Characteristics, 3.3V Supply 

(Over the Operating Range, T

A

 = –40°C to +85°C, V

CC

 = 3.3V ±10%)

Parameters

Description

Test Conditions

Min. Typ.

Max. Units

V

IH

Input HIGH Voltage

Guaranteed Logic HIGH Level

2.0

V

V

IL

Input LOW Voltage

Guaranteed Logic LOW Level

0.8

I

IH

Input HIGH Current

V

CC

 = Max., V

IN

 = V

CC

±1

A

I

IL

Input LOW Current

V

CC

 = Max., V

IN

 = GND

±1

I

OZH

High Impedance Output Current 0 Y, In V

CC

±1

R

ON

Switch On-Resistance

V

CC

= Min., V

IN

= 0.0V,

I

ON

 = -48 mA or -64mA

10

14

V

CC

= Min., V

IN

= V

CC

, I

ON

 = -15 mA

12

16

DC Electrical Characteristics, 2.5V Supply 

(Over  Operating Range, T

A

 = –40°C to +85°C, V

CC

= 2.5V ± 10%)

Parameters

Description

Test Conditions

Min.

Typ.

Max.

Units

V

IH

Input HIGH Voltage

Guaranteed Logic HIGH Level

1.8

V

CC

 + 0.3

V

V

IL

Inout LOW Voltage

Guaranteed Logic LOW Level

–0.3

0.8

I

IH

Input HIGH Current

V

CC

 = Max., V

IN

 = V

CC

±1

A

I

IL

Input LOW Current

V

CC

 = Max., V

IN

= GND

±1

I

OZH

High Impedance Current

0 Y, In  V

CC

±1

R

ON

Switch On Resistance

V

CC

 = Min., V

IN

 = 0.0V,

I

ON

 = –48mA

12

16

V

CC

 = Min., V

IN

 = Vc c,

I

ON

 = -15mA

14

18

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.

High-Bandwidth, 4-Bit, 2-Port Bus Switch w/ Individual Enables

High Bandwidth Potato Chip 

2

01/01/10

Potato Semiconductor Corporation

PO3B3126A

www.potatosemi.com

Power Supply Characteristics

Symbol

Description

Test Conditions (1)

Min

Typ

Max

Unit

Icc

Quiescent Power Supply Current

Vcc=Max, Vin=Vcc or GND

-

0.1

3

uA

Notes:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 3.3V, 25

°

C ambient.

3. This parameter is guaranteed but not tested.
4. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
5. VoH = Vcc – 0.6V at rated current

Capacitance

(T

A

 = 25°C f = 1 MHz)

Switching Characteristics over 3.3V Operating Range

Parameters

Description

Conditions

Units

Max.

t

PLH

t

PHL

Propogation Delay

See Test Diagram

0.3

ns

t

PZH

t

PZL

Bus Enable Time

See Test Diagram

2.0

t

PHZ

t

PLZ

Bus Disable Time

3.0

Dynamic Electrical Characteristics Over the Operating Range 

(T

A

 = -40º to +85º, V

CC

 = 3.3V ± 10%)

Parameter

Description

Test Condition

Typ.

Units

X

TALK

Crosstalk

R

L

 = 100

-60

dB

O

IRR

Off-Isolation

R

L

 = 100

-60

BW

-3dB Bandwidth

R

L

 = 100

1.4

GHz

Parameters

s

n

o

i

t

i

d

n

o

C

t

s

e

T

n

o

i

t

p

i

r

c

s

e

D

Typ.

Units

C

IN

V

e

c

n

a

ti

c

a

p

a

C

t

u

p

n

I

IN

F

p

5

.

3

V

0

=

C

OFF

A/B Capacitance, Switch Off

V

IN

F

p

0

.

4

V

0

=

C

ON

A/B Capacitance, Switch On

V

IN

=0V

8.0

pF

High-Bandwidth, 4-Bit, 2-Port Bus Switch w/ Individual Enables

High Bandwidth Potato Chip 

3

01/01/10

Potato Semiconductor Corporation

PO3B3126A

www.potatosemi.com

Switching Characteristics over 2.5V Operating Range

Parameters

Description

Conditions

Units

Max.

t

PLH

t

PHL

See Test Diagram

0.3

ns

t

PZH

t

PZL

See Test Diagram

2.0

t

PHZ

t

PLZ

3.0

Test Circuit for Electrical Characteristics

R

T

10pF

C

L

V

CC

V

IN

V

OUT

200-ohm

200-ohm

6.0V

Pulse

Generator

D.U.T

Switch Positions

Test

Switch

t

PLZ

, t

PZL

6.0V

t

PHZ

, t

PZH

GND

Prop Delay 

Open

Switching Waveforms

tPLZ

1.25V

1.25V

2.5V

VOH

0V

VOL

VDD/2

VDD/2

tPHZ

tPZL

tPZH

Output

Output

VOL +0.3V

VOH –0.3V

VOL
VOH

SEL

Input

t

PLH

2.5V

2.5V

2.5V

2.5V

t

PHL

3.5V

1.5V

Output

V

OH

V

OL

Voltage Waveforms Propagation Delay Times

Voltage Waveforms Enable and Disable Times

Propogation Delay

Bus Enable Time

Bus Disable Time

High-Bandwidth, 4-Bit, 2-Port Bus Switch w/ Individual Enables

High Bandwidth Potato Chip 

4

01/01/10

Potato Semiconductor Corporation

PO3B3126A

www.potatosemi.com

0.193

0.201

0.047

0.002

0.006

0.0256

typical

1

14

0.169

0.177

0.05

0.15

4.3

4.5

1.20

max.

4.90

5.10

0.65

0.19

0.30

0.007

0.012

Packaging Mechanical Drawing: 14 pin TSSOP

X.XX

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

SEATING PLANE

0.240

0.264

6.1

6.7

High-Bandwidth, 4-Bit, 2-Port Bus Switch w/ Individual Enables

High Bandwidth Potato Chip 

5

01/01/10

Potato Semiconductor Corporation

PO3B3126A

www.potatosemi.com

IC Ordering Information

Top-Marking

Ordering Code

Package

Pb-free & Green

14-pin TSSOP

Pb-free & Green

PO3B3126ATU for Tube
PO3B3126ATR for Tape & Reel

PO3B3126AT
PO3B3126AT

-40

°

C to 85

°

C

-40

°

C to 85

°

C

TA

IC Package Information

PACKAGE
CODE

PACKAGE
TYPE

QTY
PER
TUBE

TAPE
WIDTH
(mm)

TAPE
PITCH
(mm)

PIN 1  LOCATION

TAPE TRAILER 
LENGTH

QTY
PER REEL

TAPE LEADER 
LENGTH

12

8

Top Left Corner

39 (12”)

3000

64 (20”)

T

TSSOP 14

96

14-pin TSSOP