Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9159-14
Frequency Generator and Integrated Buffer for PENTIUMTM
9159-14 Rev B 3/16/00
Block Diagram
The ICS9159-14 generates all clocks required for high speed
RISC or CISC microprocessor systems such as 486, Pentium,
PowerPC,
etc. Four different reference frequency multiply-
ing factors are externally selectable with smooth frequency
transitions. These multiplying factors can be customized for
specific applications.
High drive BCLK outputs provide typically greater than 1V/
ns slew rate into 30pF loads. PCLK outputs provide typically
better than 1V/ns slew rate into 20pF loads while maintaining
5% duty cycle.
Generates up to four processor and six bus clocks, plus
disk, USB and reference clocks
Synchronous clocks skew matched to 250ps window on
PCLKs and 500ps window on BCLKs
3.0V - 5.5V supply range
28-pin SOIC package
Pentium is a trademark of Intel Corporation.
PowerPC is a trademark of Motorola Corporation.
Pin Configuration
28-Pin SOIC
1
S
F
0
S
F
O
C
V
*
F
E
R
,
1
X
)
z
H
M
(
U
P
C
)
z
H
M
(
0
0
x
7
1
/
8
1
1
1
X
8
1
3
.
4
1
)
7
.
9
4
(
0
5
0
1
1
X
x
7
/
5
6
8
1
3
.
4
1
)
5
.
6
6
(
6
.
6
6
1
0
1
X
x
1
1
/
2
9
8
1
3
.
4
1
)
9
.
9
5
(
0
6
1
1
1
X
x
9
/
9
6
8
1
3
.
4
1
)
9
.
4
5
(
5
5
Functionality
*VCO range is limited from 60 - 200 MHz.
)
3
:
0
(
K
L
C
P
)
5
:
0
(
K
L
C
B
B
S
U
K
S
I
D
2
/
O
C
V
2
/
K
L
C
P
z
H
M
8
4
z
H
M
4
2
All frequencies in MHz, assuming 14.318 MHz input.
ICS reserves the right to make changes in the device data identified in this publication
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any information being relied upon by the customer is current
and accurate.
3
ICS9159-14
Absolute Maximum Ratings
Electrical Characteristics at 3.3V
Supply Voltage .......................................................................................................... 7.0 V
Logic Inputs ....................................................................... GND 0.5 V to V
DD
+0.5 V
Ambient Operating Temperature ............................................................. 0C to +70C
Storage Temperature ........................................................................... 65C to +150C
V
DD
= 3.0 3.7 V, T
A
= 0 70
C unless otherwise stated
Note 1: Parameter is guaranteed by design and characterization. Not 100% tested in production.
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings
are stress specifications only and functional operation of the device at these or any other conditions above those listed
in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect product reliability.
s
c
i
t
s
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t
c
a
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a
h
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C
D
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A
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A
P
L
O
B
M
Y
S
S
N
O
I
T
I
D
N
O
C
T
S
E
T
N
I
M
P
Y
T
X
A
M
S
T
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N
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g
a
t
l
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w
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t
u
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n
I
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I
-
-
V
2
.
0
D
D
V
e
g
a
t
l
o
V
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t
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n
I
V H
I
V
7
.
0
D
D
-
-
V
t
n
e
r
r
u
C
w
o
L
t
u
p
n
I
I L
I
V N
I
V
0
=
0
.
8
2
-
5
.
0
1
-
-
A
m
t
n
e
r
r
u
C
h
g
i
H
t
u
p
n
I
I H
I
V N
I
V
=
D
D
0
.
5
-
-
0
.
5
A
m
t
n
e
r
r
u
C
w
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u
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O
1
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&
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f
;
V
8
.
0
=
0
.
0
3
0
.
7
4
-
A
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f
;
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0
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2
=
-
0
.
6
6
-
0
.
2
4
-
A
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f
;
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8
.
0
=
0
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5
2
0
.
8
3
-
A
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f
;
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0
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2
=
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.
7
4
-
0
.
0
3
-
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;
A
m
5
1
=
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.
0
4
.
0
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;
A
m
0
3
-
=
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.
2
8
.
2
-
V
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g
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V
w
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1
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O
s
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L
C
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e
x
i
f
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f
;
A
m
5
.
2
1
=
-
3
.
0
4
.
0
V
e
g
a
t
l
o
V
h
g
i
H
t
u
p
t
u
O
1
V H
O
I H
O
s
K
L
C
d
e
x
i
f
r
o
f
;
A
m
0
2
-
=
4
.
2
8
.
2
-
V
t
n
e
r
r
u
C
y
l
p
p
u
S
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D
d
e
d
a
o
l
n
u
s
t
u
p
t
u
o
l
l
a
;
z
H
M
5
.
6
6
@
-
5
5
0
1
1
A
m
4
ICS9159-14
Electrical Characteristics at 3.3V
V
DD
= 3.1 3.7 V, T
A
= 0 70
C
Note 1: Parameter is guaranteed by design and characterization. Not 100% tested in production.
s
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C
%
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t
%
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,
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2
-
5
.
1
5
.
2
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1
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4
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1
=
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U
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V
@
d
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F
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5
4
0
5
5
5
%
a
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;
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&
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P
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z
H
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5
2
>
T
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F
,
F
p
0
2
=
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0
5
1
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1
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1
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;
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5
2
>
T
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F
,
F
p
0
2
=
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0
5
2
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0
5
2
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1
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s
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L
;
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C
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1
3
%
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1
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2
b
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;
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C
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F
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%
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1
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;
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p
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=
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;
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P
C
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C
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5
1
0
5
2
s
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1
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4
.
1
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;
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p
0
2
=
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a
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L
;
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B
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t
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U
B
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0
0
3
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1
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4
.
1
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;
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p
0
2
=
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a
o
L
;
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U
B
o
t
U
P
C
1
6
.
2
5
s
n
5
ICS9159-14
Electrical Characteristics at 5.0V
V
DD
= 4.5 5.5 V, T
A
= 0 70
C
Note 1: Parameter is guaranteed by design and characterization. Not 100% tested in production.
s
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t
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c
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h
C
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r
r
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C
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V
0
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4
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5
1
-
-
A
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5
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0
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5
A
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8
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0
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0
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6
3
0
.
2
6
-
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&
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2
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1
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0
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0
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2
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4
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;
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0
4
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0
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m
0
5
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2
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4
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V
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H
M
5
.
6
6
@
-
0
.
0
8
0
.
0
6
1
A
m
6
ICS9159-14
Electrical Characteristics at 5.5V
V
DD
= 4.5 5.5 V, T
A
= 0 70
C
Note 1: Parameter is guaranteed by design and characterization. Not 100% tested in production.
s
c
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t
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a
h
C
C
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s
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7
ICS9159-14
SOIC Package
T
N
U
O
C
D
A
E
L
L
8
2
L
N
O
I
S
N
E
M
I
D
4
0
7
.
0
ICS XXXX M-PPP
Example:
Package Type
M=SOIC, SOP
Device Type
ICS=Standard Device
Prefix
Ordering Information
ICS9159M-14
Pattern Number(2 or 3 digit number for parts with ROM code patterns)
ICS reserves the right to make changes in the device data identified in this publication
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any information being relied upon by the customer is current
and accurate.
(consists of 3 or 4 digit numbers) plus one additional Alph designation
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