FEATURES:

DESCRIPTION:

. Patented technology
. Operating frequency up to 900MHz with 2pf load
. Operating frequency up to 700MHz with 5pf load
. Operating frequency up to 350MHz with 15pf load
. Operating frequency up to 180MHz with 50pf load
. Very low output pin to pin skew < 50ps
. VCC = 1.2V to 3.6V
. Propagation delay < 1.5ns max with 15pf load
. Low input capacitance: 3pf typical
. 1:4 fanout
. Available in 8 pin SOIC package

Pin Configuration

Logic Block Diagram

Pin Description

Pin Name

Description

t

u

p

n

I

N

I

Outputs

1

2
3

4

5

6

7

8

Ox

V

CC

D

N

G

V

CC

IN

O

1

O

4

O

3

O

2

IN

O

1

O

2

O

3

O

4

Potato Semiconductor’s PO74G38074A is designed for 
world top performance using submicron CMOS 
technology to achieve 900MHz TTL output frequency 
with less than 50ps output pin to pin skew.

PO74G38074A is a 3.3V CMOS 1 input to 4 outputs 
Buffered driver to achieve 900MHz output frequency. 
Typical applications are clock and signal distribution. 

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. 

1.2V - 3.6V 1:4 CMOS Clock Driver

900MHz TTL/CMOS Potato Chip

1

01/01/10

Potato Semiconductor Corporation

PO74G38074A

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

-

Vcc

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 85 

°

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.

1.2V - 3.6V 1:4 CMOS Clock Driver

900MHz TTL/CMOS Potato Chip 

2

01/01/10

Potato Semiconductor Corporation

PO74G38074A

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

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.

Capacitance

Parameters (1)

Description

Test Conditions

Typ

Max

Unit

Cin

Input Capacitance

Vin = 0V

3

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 to Bn

CL = 15pF

1.5

ns

t

PHL

Propagation Delay A to Bn

CL = 15pF

1.5

ns

tr/tf

Rise/Fall Time

0.8V – 2.0V

0.8

ns

tsk(o)

Output Pin to Pin Skew (Same Package)

CL = 15pF, 125MHz

50

ps

tsk(pp)

Output Skew (Different Package)

CL = 15pF, 125MHz

0.3

ns

fmax

F

p

0

5

=

L

C

y

c

n

e

u

q

e

r

F

t

u

p

n

I

180

MHz

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

700

MHz

fmax

F

p

2

=

L

C

y

c

n

e

u

q

e

r

F

t

u

p

n

I

900        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

1.2V - 3.6V 1:4 CMOS Clock Driver

900MHz TTL/CMOS Potato Chip 

3

01/01/10

Potato Semiconductor Corporation

PO74G38074A

www.potatosemi.com

Test Circuit

Test Waveforms

•

50

D.U.T

Pulse

Generator

50pF

to

2pF

Vcc

1.2V - 3.6V 1:4 CMOS Clock Driver

900MHz TTL/CMOS Potato Chip 

4

01/01/10

Potato Semiconductor Corporation

PO74G38074A

www.potatosemi.com

1.2V - 3.6V 1:4 CMOS Clock Driver

Packaging Mechanical Drawing: 8 pin SOIC

X.XX

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

.0040

.0098

SEATING PLANE

.013

.020

.050

BSC

1

8

.149

.157

3.78

3.99

.189

.196

4.80

5.00

1.27

.016

.026

1.35

1.75

0.406

0.660

0.330

0.508

0.10

0.25

.053

.068

REF

.016

.0075

.0098

.0099

.0196

0-8˚

.050

.2284

.2440

5.80

6.20

0.40

1.27

0.19

0.25

0.25

0.50

x 45˚

Ordering Information

Top-Marking

Ordering Code

Package

Pb-free & Green

PO74G38074ASU for Tube
PO74G38074ASR for Tape & Reel

PO74G38074AS
PO74G38074AS

-40

°

C to 85

°

C

-40

°

C to 85

°

C

TA

900MHz TTL/CMOS Potato Chip 

5

01/01/10

Potato Semiconductor Corporation

PO74G38074A

www.potatosemi.com

8-pin 150mil SOIC

Pb-free & Green

8-pin 150mil SOIC

IC Package Information

PACKAGE

S

16

8

Top Left Corner

39 (12”)

3000

64 (20”)

97

8-pin 150mil SOIC

CODE

PACKAGE

TYPE

TAPE

WIDTH

TAPE TRAILER

TUBE

TAPE & REEL

LENGTH

TAPE

PITCH

QTY

LENGTH

TAPE LEADER

PER TAPE

QTY
PER

PIN 1 LOCATION

(mm)

(mm)