8520DYI-02
www.icst.com/products/hiperclocks.html
REV. B NOVEMBER 16, 2005
1
Integrated
Circuit
Systems, Inc.
ICS8520I-02
L
OW
S
KEW
, 1-
TO
-16
D
IFFERENTIAL
-
TO
-LVHSTL F
ANOUT
B
UFFER
G
ENERAL
D
ESCRIPTION
The ICS8520I-02 is a low skew, high performance
1-to-16 Differential-to-LVHSTL Fanout Buffer and
a member of the HiPerClockSTM family of
High Performance Clock Solutions from ICS. The
ICS8520I-02 has 1 differential clock input pair.
The CLK, nCLK pair can accept most standard differential
input levels.
Guaranteed output skew, part-to-part skew and crossover
voltage characteristics make the ICS8520I-02 ideal for
nterfacing to today's most advanced microprocessor and
static RAMs.
F
EATURES
Sixteen differential LVHSTL compatible outputs
each with the ability to drive 50 to ground
One differential CLK, nCLK input pair
CLK, nCLK pair can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL
Maximum output frequency: 500MHz
Translates single ended input levels to LVHSTL
levels with resistor bias nCLK input
V
OH
: 1.3V (maximum)
40% of V
OH
Vcrossover 60% of V
OH
Output skew: 110ps (maximum)
Part-to-Part skew: 450ps (maximum)
3.3V core, 1.8V output operating supply voltages
-40C to 85C ambient operating temperature
Available in both standard and lead-free RoHS compliant
packages
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
HiPerClockSTM
ICS
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
V
DDO
Q11
nQ11
Q10
nQ10
GND
Q9
nQ9
Q8
nQ8
V
DDO
V
DD
CLK
V
DDO
nQ0
Q0
nQ1
Q1
GND
nQ2
Q2
nQ3
Q3
V
DDO
nCLK
V
DDO
Q15
nQ15
Q14
nQ14
GND
Q13
nQ13
Q12
nQ12
V
DDO
ICS8520I-02
V
DDO
nQ4
Q4
nQ5
Q5
GND
nQ6
Q6
nQ7
Q7
V
DDO
V
DD
48-Lead TQFP, E-Pad
7mm x 7mm x 1.0mm body package
Y Package
Top View
CLK
nCLK
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q15
nQ15
Q14
nQ14
Q13
nQ13
Q12
nQ12
Q11
nQ11
Q10
nQ10
Q9
nQ9
Q8
nQ8
8520DYI-02
www.icst.com/products/hiperclocks.html
REV. B NOVEMBER 16, 2005
3
Integrated
Circuit
Systems, Inc.
ICS8520I-02
L
OW
S
KEW
, 1-
TO
-16
D
IFFERENTIAL
-
TO
-LVHSTL F
ANOUT
B
UFFER
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= -40C
TO
85C
T
ABLE
4B. D
IFFERENTIAL
DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= -40C
TO
85C
T
ABLE
4C. LVHSTL DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, V
DDO
= 1.8V0.2V, T
A
= -40C
TO
85C
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A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
DD
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5 V
Outputs, V
O
-0.5V to V
DDO
+ 0.5V
Package Thermal Impedance,
JA
27.6C/W (0 lfpm)
Storage Temperature, T
STG
-65C to 150C
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions be-
yond those listed in the
DC Characteristics
or
AC Character-
istics
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
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