FEATURES:

. Patented technology
. Operating frequency up to 1GHz with 2pf load
. Operating frequency up to 730MHz with 5pf load
. Operating frequency up to 320MHz with 15pf load
. Operating frequency up to 75MHz with 50pf load
. VCC Operates from 1.2V to 3.6V
. Propagation delay < 1.65ns max with 15pf load
. Low input capacitance: 5pf typical
. Available in 48pin TSSOP package

Pin Configuration

Logic Block Diagram

Pin Description

Truth Table

DESCRIPTION:

Potato Semiconductor’s PO74G16245B is designed for 

world top performance using submicron CMOS 

technology to achieve 1GHz TTL /CMOS output 

frequency with less than 1.65ns propagation delay.

This Octal bus buffer gate is designed for 1.2-V to 

3.6-V V

CC

 operation.

The

PO74G16245B

features independent 16-bit 

Bidirectional Transceiver with 3 state outputs. Each 

output is disabled when the associated output- 

enable(OE) input is high.

E

O

2

E

O

1

1B0

1A0

1DIR

1B1

1A1

1B2

1A2

1B3

1A3

1B4

1A4

1B5

1A5

1B6

1A6

1B7

1A7

2B0

2A0

2DIR

2B1

2A1

2B2

2A2

2B3

2A3

2B4

2A4

2B5

2A5

2B6

2A6

2B7

2A7

1DIR

1B0
1B1

GND

1B2
1B3

VCC

1B4
1B5

GND

1B6
1B7
2B0
2B1

GND

2B2
2B3

VCC

2B4
2B5

GND

2B6
2B7

2DIR

1OE
1A0
1A1
GND
1A2
1A3
VCC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2B2
2A3
VCC
2A4
2A5
GND
2A6
2A7
2OE

48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

e

m

a

N

n

i

P

n

o

i

t

p

i

r

c

s

e

D

O

)

E

x

W

O

L

e

v

it

c

A

(

s

t

u

p

n

I

e

l

b

a

n

E

t

u

p

t

u

O

e

t

a

t

S

-

3

R

I

D

t

x

u

p

n

I

l

o

r

t

n

o

C

n

o

it

c

e

ri

D

X

A

X

s

t

u

p

n

I

e

t

a

t

S

-

3

r

o

s

t

u

p

n

I

A

e

d

i

S

X

B

X

s

t

u

p

t

u

O

e

t

a

t

S

-

3

r

o

s

t

u

p

t

u

O

B

e

d

i

S

D

N

G

d

n

u

o

r

G

V

C

C

r

e

w

o

P

s

t

u

p

n

s

I

t

u

p

t

u

O

E

O

x

R

I

D

x

A

L

L

s

u

B

o

t

a

t

a

D

B

s

u

B

B

H

L

s

u

B

o

t

a

t

a

D

A

s

u

B

H

X

Z

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

74 Series Noise Cancellation GHz Logic 

1

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com

Maximum Ratings

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 +Vcc

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.

.

n

i

M

.

x

a

M

s

t

i

n

U

V

C

C

e

g

a

tl

o

V

y

l

p

p

u

S

g

n

i

t

a

r

e

p

4

O

.

1

6

.

3

V

y

l

n

o

n

o

i

t

n

e

t

e

r

a

t

a

2

D

.

1

V

H

I

e

g

a

tl

o

V

t

u

p

n

I

l

e

v

e

l

-

h

g

i

H

V

C

C

V

2

.

1

V

=

C

C

V

C

C

V

6

.

1

o

t

V

4

.

1

V

=

x

5

6

.

0

C

C

V

C

C

V

5

9

.

1

o

t

V

5

6

.

1

V

=

x

5

6

.

0

C

C

V

C

C

V

7

.

2

o

t

V

3

.

2

7

=

.

1

V

C

C

V

6

.

3

o

t

V

3

2

=

V

L

I

e

g

a

tl

o

V

t

u

p

n

I

l

e

v

e

l

-

w

o

L

V

C

C

V

2

.

1

D

=

N

G

V

C

C

V

6

.

1

o

t

V

4

.

1

V

=

x

5

3

.

0

C

C

V

C

C

V

5

9

.

1

o

t

V

5

6

.

1

V

=

x

5

3

.

0

C

C

V

C

C

V

7

.

2

o

t

V

3

.

2

7

=

.

0

V

C

C

V

6

.

3

o

t

V

3

8

=

.

0

V

I

e

g

a

tl

o

V

t

u

p

n

I

0

6

.

3

V

O

e

g

a

tl

o

V

t

u

p

t

u

O

e

t

a

t

S

e

v

i

t

c

V

0

A

C

C

e

t

a

t

S

-

6

0

3

.

3

I

H

O

t

n

e

r

r

u

c

t

u

p

t

u

o

l

e

v

e

l

-

h

g

i

H

V

C

C

V

6

.

1

o

t

V

4

.

1

4

=

–

A

m

V

C

C

V

5

9

.

1

o

t

V

5

6

.

1

6

=

–

V

C

C

V

7

.

2

o

t

V

3

.

2

2

=

1

–

V

C

C

V

6

.

3

o

t

V

3

4

=

2

–

I

L

O

t

n

e

r

r

u

c

t

u

p

t

u

o

l

e

v

e

l

-

w

o

L

V

C

C

V

6

.

1

o

t

V

4

.

1

4

=

V

C

C

V

5

9

.

1

o

t

V

5

6

.

1

6

=

V

C

C

V

7

.

2

o

t

V

3

.

2

2

=

1

V

C

C

V

6

.

3

o

t

V

3

4

=

2

t

e

t

a

r

ll

a

f

r

o

e

s

i

r

n

o

i

ti

s

n

a

r

t

t

u

p

n

I

v

V

C

C

V

6

.

3

o

t

V

4

.

1

V

5

=

/

s

n

T

A

e

r

u

t

a

r

e

p

m

e

t

r

i

a

-

e

e

r

f

g

n

i

t

a

r

e

p

O

0

4

–

5

8

C

°

DC Electrical Characteristics

(Over the Operating Range, T

A

= –40°C +85°C)

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

74 Series Noise Cancellation GHz Logic 

2

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com

s

r

e

t

e

m

a

r

a

s

P

n

o

i

t

i

d

n

o

C

t

s

e

T

)

1

(

V

C

C

.

n

i

M

.

p

y

T

.

x

a

M

s

t

i

n

U

V

H

O

V

I

S

H

O

4

–

=

m

V

A

H

I

V

1

9

.

0

=

V

4

.

1

5

0

.

1

I

S

H

O

6

–

=

m

V

A

H

I

V

7

0

.

1

=

V

5

6

.

1

2

.

1

I

S

H

O

2

1

–

=

m

V

A

H

I

V

7

.

1

=

V

3

.

2

5

7

.

1

I

S

H

O

4

2

–

=

m

V

A

H

I

V

2

=

V

3

0

.

2

V

L

O

I

S

L

O

4

= m

V

A

L

I

V

9

4

.

0

=

V

4

.

4

1

.

0

I

S

L

O

6

= m

V

A

L

I

V

7

5

.

0

=

V

5

6

.

5

1

4

.

0

I

S

L

O

2

1

=

m

V

A

L

I

V

7

.

0

=

V

3

.

5

2

5

.

0

I

S

L

O

4

2

=

m

V

A

L

I

V

8

.

0

=

V

8

3

.

0

I

I

V

I

V

=

C

C

D

N

G

r

V

o

6

.

5

3

.

2

±

A

I

Z

O

V

O

V

=

C

C

D

N

G

r

V

o

6

.

0

3

1

±

350

±

I

C

C

V

I

V

=

C

C

I

D

N

G

r

o

O

0

=

V

6

.

3

C

I

s

t

u

p

n

I

l

o

r

t

n

o

C

V

I

V

=

C

C

D

N

G

r

o

5

.

3

F

p

s

t

u

p

n

I

a

t

a

D

5

C

O

s

t

u

p

t

u

O

V

O

V

=

C

C

D

N

G

r

o

5

Notes:

1. Typical values are measured at T

A

= 25°C.

DC Electrical Characteristics

(Over the Operating Range, T

A

= –40°C +85°C)

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

74 Series Noise Cancellation GHz Logic 

3

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com

Switching Characteristics

Operating Characteristics, 

T

A

= 25°C

s

r

e

t

e

m

a

r

a

s

P

n

o

i

t

i

d

n

o

C

t

s

e

T

V

C

C

V

8

.

1

=

V

C

C

V

2

.

1

=

V

5

1

.

0

±

V

C

C

V

5

.

2

=

V

2

.

0

±

V

C

C

V

3

.

3

=

V

3

.

0

±

s

t

i

n

U

C

d

p

n

o

it

a

p

i

s

s

i

D

r

e

w

o

P

e

c

n

a

ti

c

a

p

a

C

C

L

,

F

p

0

=

z

H

M

0

1

=

f

F

p

s

r

e

t

e

m

a

r

a

P

m

o

r

F

)

t

u

p

n

I

(

o

T

)

t

u

p

t

u

O

(

V

C

C

V

2

.

1

=

V

C

C

V

5

.

1

=

V

1

.

0

±

V

C

C

V

8

.

1

=

V

5

1

.

0

±

V

C

C

V

5

.

2

=

V

2

.

0

±

V

C

C

V

3

.

3

=

V

3

.

0

±

s

t

i

n

U

t

d

p

s

n

t

n

e

t

s

i

d

Mhz

fmax CL=2pf

fmax CL=5pf

fmax CL=15pf

fmax CL=50pf

A or B

A or B

A or B

A or B

A or B

OE

B or A

B or A

B or A

B or A

B or A

B or A

B or A

3.5

3.5

2.9

1.85

1.65

270

300

685

1000

45

50

20

18.5

70

22

75

26

100

130

220

320

150

150

390

730

OE

9.6

8.4

8.4

7.0

4.3

4.3

3.5

3.5

7.0

9.6

Max

Max

Max

Max

Typ.

Typical

Typical

Typical

Typical

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

74 Series Noise Cancellation GHz Logic 

4

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com

Test Waveforms

Test Circuit

50Ohm

50Ohm

500Ohm

500Ohm

50pF
to
2pF

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

74 Series Noise Cancellation GHz Logic 

5

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com

Packaging Mechanical Drawing: 48 pin TSSOP

X.XX

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

.236

.244

.488

.496

.002

.006

.007

.010

 .0197

.004

.008

.319

1

48

12.4

12.6

6.0

6.2

0.50

0.17

0.27

8.1

0.05

0.15

0.09

0.20

.018

.030

 .047 

1.20   Max

0.45

0.75

1.2v-3.6v, 16-bit Bidirectional Transceiver with 3 state outputs

Top-Marking

IC Ordering Information

Ordering Code

Package

48pin TSSOP  Pb-free & Green

PO74G16245BSU for Tube

POTATO74G16245BS
POTATO74G16245BS

PO74G16245BSR for Tape & Reel

-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

24

12

Top Left Corner

26 (12”)

1500

43 (20”)

T

TSSOP 48

39

48pin TSSOP  Pb-free & Green

74 Series Noise Cancellation GHz Logic 

6

01/01/10

Potato Semiconductor Corporation

PO74G16245B

www.potatosemi.com