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)