FEATURES:

. Patented technology
. Operating frequency up to 1.125GHz with 2pf load
. Operating frequency up to 800MHz with 5pf load
. Operating frequency up to 350MHz with 15pf load
. VCC Operates from 1.65V to 3.6V
. Propagation delay < 1.7ns max with 15pf load
. Low input capacitance: 4pf typical
. Available in 16 pin SOIC package

Pin Configuration

Logic Block Diagram

Pin Description

DESCRIPTION:

Potato Semiconductor’s PO74G139A is designed for 

world top performance using submicron CMOS 

technology to achieve 1.125GHz TTL /CMOS output 

frequency with less than 1.7ns propagation delay.

This quadruple bus buffer gate is designed for 1.65-V 

to 3.6-V V

CC

 operation.

The

PO74G139A

comprises two individual 2-line to 

4-line decoders in a single package. Theactive-

lowenable (G) input can be used as a data line in 

demultiplexing applications. This decoder/ demulti-

plexer features fully buffered 

inputs, each of which represents only one normalized-

load to itsdriving circuit.

Inputs can be driven from either 3.3V or 5V devices. 

This feature allows the use of these devices as 

translators in a mixed 3.3V/5V system environment.

1
2
3
4
5
6
7
8

16
15
14
13
12

11

10

9

1G

1A

1B

1Y0

1Y1

1Y2

1Y3

GND

V

CC

2G

2A

2B

2Y0

2Y1

2Y2

2Y3

Select

Inputs

Select

Inputs

2B

2A

2G

1B

1A

1G

Data

Outputs

2Y3

2Y2

2Y1

2Y0

1Y3

1Y2

1Y1

1Y0

1

2

3

15

14

13

4

5

6

7

12

11

10

9

INPUTS

OUTPUTS

SELECT

G

B

A

Y3

Y2

Y1

Y0

L

L

L

H

H

H

L

L

L

H

H

H

L

H

L

H

L

H

L

H

H

L

H

H

L

H

H

H

H

X

X

H

H

H

H

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

  74 Series Noise Cancellation GHz Logic 

1

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com

Maximum Ratings

DC Electrical Characteristics

Symbol

Description

Test Conditions

Min

Typ

Max

Unit

V

OH

Output High voltage

Vcc=3V Vin=V

IH

or V

IL

, I

OH

= -12mA

2.4

3

-

V

V

OL

Output Low voltage

Vcc=3V Vin=V

IH

or V

IL

, I

OH

=12mA

-

0.3

0.5

V

V

IH

Input High voltage

Guaranteed Logic HIGH Level (Input Pin)

2

-

5.5

V

V

IL

Input Low voltage

Guaranteed Logic LOW Level (Input Pin)

-0.5

-

0.8

V

I

IH

Input High current

Vcc = 3.6V and Vin = 5.5V

-

-

1

uA

I

IL

Input Low current

Vcc = 3.6V and Vin = 0V

-

-

-1

 uA 

V

IK

Clamp diode voltage

Vcc = Min. And

I

IN

= -18mA

-

-0.7

-1.2

V

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

Description

Max

Unit

Storage Temperature

-65 to 150

°

C

Operation Temperature

-40 to 125 

°

C

Operation Voltage

-0.5 to +4.6 

V

Input Voltage

-0.5 to +5.5

V

Output Voltage

-0.5 to Vcc+0.5

V

Note:

stresses greater than 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 specification is not implied.

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

  74 Series Noise Cancellation GHz Logic 

2

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com

Power Supply Characteristics

Symbol

Description

Test Conditions (1)

Min

Typ

Max

Unit

Icc

Q

Quiescent Power Supply Current

Vcc=Max, Vin=Vcc or GND

-

0.1

30

uA

Icc

Power Supply Current per Input High

Vcc=Max, Vin= Vcc-0.6V

-

50

300

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

Parameters (1)

Description

Test Conditions

Typ

Unit

Cin

Input Capacitance

Vin = 0V

4

pF

Cout

Output Capacitance

Vout = 0V

6

pF

Notes:

1 This parameter is determined by device characterization but not production tested.

Switching Characteristics

t

i

n

U

x

a

M

)

1

(

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

l

o

b

m

y

S

t

PLH

Propagation Delay A, B to Y

CL = 15pF

1.7

ns

t

PHL

Propagation Delay A, B to Y

CL = 15pF

1.7

ns

tr/tf

Rise/Fall Time

0.8V – 2.0V

0.8

ns

fmax

F

p

5

1

=

L

C

y

c

n

e

u

q

e

r

F

t

u

p

n

I

350

MHz

fmax

F

p

5

=

L

C

y

c

n

e

u

q

e

r

F

t

u

p

n

I

800

MHz

fmax

F

p

2

=

L

C

y

c

n

e

u

q

e

r

F

t

u

p

n

I

1125

MHz

Notes:

1. See test circuits and waveforms.
2. tpLH, tpHL, tsk(p), and tsk(o) are production tested. All other parameters guaranteed but not production tested.
3. Airflow of 1m/s is recommended for frequencies above 133MHz

tsk(o)

Output Pin to Pin Skew

CL = 15pF, 125MHz

0.25

ns

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

  74 Series Noise Cancellation GHz Logic 

3

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com

Test Waveforms

Test Circuit

50Ohm

50Ohm

•

500

500Ohm

15pF
to
2pF

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

  74 Series Noise Cancellation GHz Logic 

4

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com

Packaging Mechanical Drawing: 16 pin SOIC

Packaging Mechanical Drawing: 16 pin TSSOP

.050

BSC

1

16

.149

.157

3.78

3.99

.386

.393

9.80

10.00

1.27

.053

.068

1.35

1.75

.0040

.0098

0.10

0.25

.013

.020

.0155

.0260

0.330

0.508

0.393

0.660

.0075

.0098

0.19

0.25

.016

.050

0.41

1.27

.2284

.2440

5.80

6.20

X.XX

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

X.XX

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

  74 Series Noise Cancellation GHz Logic 

5

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com

DUAL2-LINETO4-LINEDECODER/DEMULTIPLEXER

IC Ordering Information

Top-Marking

Ordering Code

Package

Pb-free & Green

PO74G139ASU for Tube
PO74G139ASR for Tape & Reel

POTATO74G139AS
POTATO74G139AS

-40 C to 85 C
-40 C to 85 C

173mil TSSOP 16

PO74G139ATU for Tube
PO74G139ATR for Tape & Reel

POTATO74G139AT
POTATO74G139AT

-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

S

SOIC 16

16

8

Top Left Corner

39 (12”)

3000

64 (20”)

48

T

TSSOP 16

12

8

Top Left Corner

39 (12”)

3000

64 (20”)

96

Pb-free & Green

Pb-free & Green

Pb-free & Green

173mil TSSOP 16

150mil SOIC 16
150mil SOIC 16

  74 Series Noise Cancellation GHz Logic 

6

01/01/10

Potato Semiconductor Corporation

PO74G139A

www.potatosemi.com