ChipFind - документация

Электронный компонент: 8525AG

Скачать:  PDF   ZIP
8525BG
www.icst.com/products/hiperclocks.html
REV. B MAY 6, 2002
1
Integrated
Circuit
Systems, Inc.
ICS8525
L
OW
S
KEW
, 1-
TO
-4
LVCMOS-
TO
-LVHSTL F
ANOUT
B
UFFER
G
ENERAL
D
ESCRIPTION
The ICS8525 is a low skew, high performance
1-to-4 LVCMOS-to-LVHSTL fanout buffer and a
member of the HiPerClockSTM family of High
Performance Clock Solutions from ICS. The
ICS8525 has two selectable clock inputs that ac-
cept LVCMOS or LVTTL input levels and translate them to
LVHSTL levels. The clock enable is internally synchronized
to eliminate runt pulses on the outputs during asynchronous
assertion/deassertion of the clock enable pin.
Guaranteed output and part-to-part skew characteristics
make the ICS8525 ideal for those applications demanding
well defined performance and repeatability.
F
EATURES
4 differential LVHSTL compatible outputs
Selectable LVCMOS / LVTTL clock inputs for redundant
and multiple frequency fanout applications
Maximum output frequency: 266MHz
Translates LVCMOS and LVTTL levels to LVHSTL levels
Output skew: 35ps (maximum)
Part-to-part skew: 150ps (maximum)
Propagation delay: 1.9ns (maximum)
3.3V core, 1.8V operating supply
0C to 70C ambient operating temperature
Industrial temperature information available upon request
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
HiPerClockSTM
,&6
ICS8525
20-Lead TSSOP
6.5mm x 4.4mm x 0.92mm Package Body
G Package
Top View
GND
CLK_EN
CLK_SEL
CLK0
nc
CLK1
nc
nc
nc
V
DD
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Q0
nQ0
V
DDO
Q1
nQ1
Q2
nQ2
V
DDO
Q3
nQ3
CLK0
CLK1
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
0
1
CLK_EN
CLK_SEL
D
Q
LE
8525BG
www.icst.com/products/hiperclocks.html
REV. B MAY 6, 2002
2
Integrated
Circuit
Systems, Inc.
ICS8525
L
OW
S
KEW
, 1-
TO
-4
LVCMOS-
TO
-LVHSTL F
ANOUT
B
UFFER
T
ABLE
2. P
IN
C
HARACTERISTICS
T
ABLE
1. P
IN
D
ESCRIPTIONS
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
C
N
I
e
c
n
a
t
i
c
a
p
a
C
t
u
p
n
I
4
F
p
R
P
U
L
L
U
P
r
o
t
s
i
s
e
R
p
u
ll
u
P
t
u
p
n
I
1
5
K
R
N
W
O
D
L
L
U
P
r
o
t
s
i
s
e
R
n
w
o
d
ll
u
P
t
u
p
n
I
1
5
K
r
e
b
m
u
N
e
m
a
N
e
p
y
T
n
o
i
t
p
i
r
c
s
e
D
1
D
N
G
r
e
w
o
P
.
d
n
u
o
r
g
y
l
p
p
u
s
r
e
w
o
P
2
N
E
_
K
L
C
t
u
p
n
I
p
u
ll
u
P
k
c
o
l
c
w
o
ll
o
f
s
t
u
p
t
u
o
k
c
o
l
c
,
H
G
I
H
n
e
h
W
.
e
l
b
a
n
e
k
c
o
l
c
g
n
i
z
i
n
o
r
h
c
n
y
S
.
h
g
i
h
d
e
c
r
o
f
e
r
a
s
t
u
p
t
u
o
Q
n
,
w
o
l
d
e
c
r
o
f
e
r
a
s
t
u
p
t
u
o
Q
,
W
O
L
n
e
h
W
.
t
u
p
n
i
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
3
L
E
S
_
K
L
C
t
u
p
n
I
n
w
o
d
ll
u
P
.
t
u
p
n
i
1
K
L
C
s
t
c
e
l
e
s
,
H
G
I
H
n
e
h
W
.
t
u
p
n
i
t
c
e
l
e
s
k
c
o
l
C
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
.
t
u
p
n
i
0
K
L
C
s
t
c
e
l
e
s
,
W
O
L
n
e
h
W
4
0
K
L
C
t
u
p
n
I
n
w
o
d
ll
u
P
.
t
u
p
n
i
k
c
o
l
c
L
T
T
V
L
/
S
O
M
C
V
L
6
1
K
L
C
t
u
p
n
I
n
w
o
d
ll
u
P
.
t
u
p
n
i
k
c
o
l
c
L
T
T
V
L
/
S
O
M
C
V
L
9
,
8
,
7
,
5
c
n
d
e
s
u
n
U
.
t
c
e
n
n
o
c
o
N
0
1
V
D
D
r
e
w
o
P
.
n
i
p
y
l
p
p
u
s
e
v
i
t
i
s
o
P
8
1
,
3
1
V
O
D
D
r
e
w
o
P
.
s
n
i
p
y
l
p
p
u
s
t
u
p
t
u
O
2
1
,
1
1
3
Q
,
3
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
S
H
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
5
1
,
4
1
2
Q
,
2
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
S
H
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
7
1
,
6
1
1
Q
,
1
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
S
H
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
0
2
,
9
1
0
Q
,
0
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
S
H
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
:
E
T
O
N
p
u
ll
u
P
d
n
a
n
w
o
d
ll
u
P
.
s
e
u
l
a
v
l
a
c
i
p
y
t
r
o
f
,
s
c
i
t
s
i
r
e
t
c
a
r
a
h
C
n
i
P
,
2
e
l
b
a
T
e
e
S
.
s
r
o
t
s
i
s
e
r
t
u
p
n
i
l
a
n
r
e
t
n
i
o
t
r
e
f
e
r
8525BG
www.icst.com/products/hiperclocks.html
REV. B MAY 6, 2002
3
Integrated
Circuit
Systems, Inc.
ICS8525
L
OW
S
KEW
, 1-
TO
-4
LVCMOS-
TO
-LVHSTL F
ANOUT
B
UFFER
T
ABLE
3A. C
ONTROL
I
NPUT
F
UNCTION
T
ABLE
T
ABLE
3B. C
LOCK
I
NPUT
F
UNCTION
T
ABLE
s
t
u
p
n
I
s
t
u
p
t
u
O
1
K
L
C
r
o
0
K
L
C
3
Q
:
0
Q
3
Q
n
:
0
Q
n
0
W
O
L
H
G
I
H
1
H
G
I
H
W
O
L
F
IGURE
1 - CLK_EN T
IMING
D
IAGRAM
Enabled
Disabled
CLK0, CLK1
CLK_EN
nQ0:nQ3
Q0:Q3
s
t
u
p
n
I
s
t
u
p
t
u
O
N
E
_
K
L
C
L
E
S
_
K
L
C
e
c
r
u
o
S
d
e
t
c
e
l
e
S
3
Q
:
0
Q
3
Q
n
:
0
Q
n
0
0
0
K
L
C
W
O
L
;
d
e
l
b
a
s
i
D
H
G
I
H
;
d
e
l
b
a
s
i
D
0
1
1
K
L
C
W
O
L
;
d
e
l
b
a
s
i
D
H
G
I
H
;
d
e
l
b
a
s
i
D
1
0
0
K
L
C
d
e
l
b
a
n
E
d
e
l
b
a
n
E
1
1
1
K
L
C
d
e
l
b
a
n
E
d
e
l
b
a
n
E
e
g
d
e
k
c
o
l
c
t
u
p
n
i
g
n
il
l
a
f
d
n
a
g
n
i
s
i
r
a
g
n
i
w
o
ll
o
f
d
e
l
b
a
n
e
r
o
d
e
l
b
a
s
i
d
e
r
a
s
t
u
p
t
u
o
o
k
c
o
l
c
e
h
t
,
s
e
h
c
t
i
w
s
N
E
_
K
L
C
r
e
t
f
A
.
1
e
r
u
g
i
F
n
i
n
w
o
h
s
s
a
.
B
3
e
l
b
a
T
n
i
d
e
b
i
r
c
s
e
d
s
a
s
t
u
p
n
i
1
K
L
C
d
n
a
0
K
L
C
e
h
t
f
o
n
o
i
t
c
n
u
f
a
e
r
a
s
t
u
p
t
u
o
e
h
t
f
o
e
t
a
t
s
e
h
t
,
e
d
o
m
e
v
i
t
c
a
e
h
t
n
I
8525BG
www.icst.com/products/hiperclocks.html
REV. B MAY 6, 2002
4
Integrated
Circuit
Systems, Inc.
ICS8525
L
OW
S
KEW
, 1-
TO
-4
LVCMOS-
TO
-LVHSTL F
ANOUT
B
UFFER
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
DDx
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5V
Outputs, V
O
-0.5V to V
DDO
+ 0.5V
Package Thermal Impedance,
JA
73.2C/W (0 lfpm)
Storage Temperature, T
STG
-65C to 150C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These rat-
ings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those
listed in the
DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect product reliability.
T
ABLE
4B. LVCMOS / LVTTL DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= 0C
TO
70C
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
H
I
e
g
a
t
l
o
V
h
g
i
H
t
u
p
n
I
1
K
L
C
,
0
K
L
C
2
5
6
7
.
3
V
,
N
E
_
K
L
C
L
E
S
_
K
L
C
2
5
6
7
.
3
V
V
L
I
e
g
a
t
l
o
V
w
o
L
t
u
p
n
I
1
K
L
C
,
0
K
L
C
3
.
0
-
3
.
1
V
,
N
E
_
K
L
C
L
E
S
_
K
L
C
3
.
0
-
8
.
0
V
I
H
I
t
n
e
r
r
u
C
h
g
i
H
t
u
p
n
I
,
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
D
D
V
=
N
I
V
5
6
4
.
3
=
0
5
1
A
N
E
_
K
L
C
V
D
D
V
=
N
I
V
5
6
4
.
3
=
5
A
I
L
I
t
n
e
r
r
u
C
w
o
L
t
u
p
n
I
,
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
D
D
V
,
V
5
6
4
.
3
=
N
I
V
0
=
5
-
A
N
E
_
K
L
C
V
D
D
V
,
V
5
6
4
.
3
=
N
I
V
0
=
0
5
1
-
A
T
ABLE
4C. LVHSTL DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= 0C
TO
70C
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
H
O
;
e
g
a
t
l
o
V
h
g
i
H
t
u
p
t
u
O
1
E
T
O
N
1
2
.
1
V
V
L
O
;
e
g
a
t
l
o
V
w
o
L
t
u
p
t
u
O
1
E
T
O
N
0
4
.
0
V
V
X
O
e
g
a
t
l
o
V
r
e
v
o
s
s
o
r
C
t
u
p
t
u
O
V
(
x
%
0
4
H
O
V
-
L
O
V
+
)
L
O
V
(
x
%
0
6
H
O
V
-
L
O
V
+
)
L
O
V
V
G
N
I
W
S
k
a
e
P
-
o
t
-
k
a
e
P
g
n
i
w
S
e
g
a
t
l
o
V
t
u
p
t
u
O
5
7
.
0
5
2
.
1
V
0
5
h
t
i
w
d
e
t
a
n
i
m
r
e
t
s
t
u
p
t
u
O
:
1
E
T
O
N
.
D
N
G
o
t
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= 0C
TO
70C
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
D
D
e
g
a
t
l
o
V
y
l
p
p
u
S
e
v
i
t
i
s
o
P
5
3
1
.
3
3
.
3
5
6
4
.
3
V
V
O
D
D
e
g
a
t
l
o
V
y
l
p
p
u
S
t
u
p
t
u
O
6
.
1
8
.
1
0
.
2
V
I
D
D
t
n
e
r
r
u
C
y
l
p
p
u
S
r
e
w
o
P
0
5
A
m
8525BG
www.icst.com/products/hiperclocks.html
REV. B MAY 6, 2002
5
Integrated
Circuit
Systems, Inc.
ICS8525
L
OW
S
KEW
, 1-
TO
-4
LVCMOS-
TO
-LVHSTL F
ANOUT
B
UFFER
T
ABLE
5. AC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= 0C
TO
70C
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
f
X
A
M
y
c
n
e
u
q
e
r
F
t
u
p
t
u
O
m
u
m
i
x
a
M
6
6
2
z
H
M
t
D
P
1
E
T
O
N
;
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
z
H
M
6
6
2
0
.
1
9
.
1
s
n
t
)
o
(
k
s
4
,
2
E
T
O
N
;
w
e
k
S
t
u
p
t
u
O
5
3
s
p
t
)
p
p
(
k
s
4
,
3
E
T
O
N
;
w
e
k
S
t
r
a
P
-
o
t
-
t
r
a
P
0
5
1
s
p
t
R
e
m
i
T
e
s
i
R
t
u
p
t
u
O
z
H
M
0
5
@
%
0
8
o
t
%
0
2
0
0
3
0
0
7
s
p
t
F
e
m
i
T
ll
a
F
t
u
p
t
u
O
z
H
M
0
5
@
%
0
8
o
t
%
0
2
0
0
3
0
0
7
s
p
c
d
o
e
l
c
y
C
y
t
u
D
t
u
p
t
u
O
5
4
0
5
5
5
%
.
e
s
i
w
r
e
h
t
o
d
e
t
o
n
s
s
e
l
n
u
z
H
M
6
6
2
t
a
d
e
r
u
s
a
e
m
s
r
e
t
e
m
a
r
a
p
ll
A
.
r
e
t
t
ij
d
d
a
t
o
n
s
e
o
d
t
r
a
p
e
h
T
.
t
u
p
t
u
o
e
h
t
n
o
r
e
t
t
ij
e
h
t
l
a
u
q
e
ll
i
w
t
u
p
n
i
e
h
t
n
o
r
e
t
t
ij
e
l
c
y
c
-
o
t
-
e
l
c
y
c
e
h
T
V
e
h
t
m
o
r
f
d
e
r
u
s
a
e
M
:
1
E
T
O
N
D
D
.
t
n
i
o
p
g
n
i
s
s
o
r
c
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
d
e
h
t
o
t
t
u
p
n
i
e
h
t
f
o
2
/
.
s
n
o
i
t
i
d
n
o
c
d
a
o
l
l
a
u
q
e
h
t
i
w
d
n
a
e
g
a
t
l
o
v
y
l
p
p
u
s
e
m
a
s
e
h
t
t
a
s
t
u
p
t
u
o
n
e
e
w
t
e
b
w
e
k
s
s
a
d
e
n
i
f
e
D
:
2
E
T
O
N
.
s
t
n
i
o
p
s
s
o
r
c
l
a
i
t
n
e
r
e
f
f
i
d
t
u
p
t
u
o
e
h
t
t
a
d
e
r
u
s
a
e
M
d
n
a
s
e
g
a
t
l
o
v
y
l
p
p
u
s
e
m
a
s
e
h
t
t
a
g
n
i
t
a
r
e
p
o
s
e
c
i
v
e
d
t
n
e
r
e
f
f
i
d
n
o
s
t
u
p
t
u
o
n
e
e
w
t
e
b
w
e
k
s
s
a
d
e
n
i
f
e
D
:
3
E
T
O
N
d
e
r
u
s
a
e
m
e
r
a
s
t
u
p
t
u
o
e
h
t
,
e
c
i
v
e
d
h
c
a
e
n
o
s
t
u
p
n
i
f
o
e
p
y
t
e
m
a
s
e
h
t
g
n
i
s
U
.
s
n
o
i
t
i
d
n
o
c
d
a
o
l
l
a
u
q
e
h
t
i
w
.
s
t
n
i
o
p
s
s
o
r
c
l
a
i
t
n
e
r
e
f
f
i
d
e
h
t
t
a
.
5
6
d
r
a
d
n
a
t
S
C
E
D
E
J
h
t
i
w
e
c
n
a
d
r
o
c
c
a
n
i
d
e
n
i
f
e
d
s
i
r
e
t
e
m
a
r
a
p
s
i
h
T
:
4
E
T
O
N