ONSEMI NB100EP223FAR2G

NB100EP223
3.3V1:22 Differential
HSTL/PECL to HSTL Clock
Driver with LVTTL Clock
Select and Output Enable
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Description
The NB100EP223 is a low skew 1−to−22 differential clock driver,
designed with clock distribution in mind, accepting two clock sources
into an input multiplexer. The part is designed for use in low voltage
applications which require a large number of outputs to drive precisely
aligned low skew signals to their destination. The two clock inputs are
differential HSTL or LVPECL and they are selected by the CLK_SEL
pin which is LVTTL. To avoid generation of a runt clock pulse when
the device is enabled/disabled, the Output Enable (OE), which is
LVTTL, is synchronous ensuring the outputs will only be
enabled/disabled when they are already in LOW state (See Figure 7).
The NB100EP223 guarantees low output−to−output skew. The
optimal design, layout, and processing minimize skew within a device
and from lot to lot. In any differential output pair, the same bias and
termination scheme is required. Unused output pairs should be left
unterminated (open) to “reduce power and switching noise as much as
possible.” Any unused single line of a differential pair should be
terminated the same as the used line to maintain balanced loads on the
differential driver outputs. The output structure uses an open emitter
architecture and will be terminated with 50 W to ground instead of a
standard HSTL configuration (See Figure 6). The wide VIHCMR
specification allows both pair of CLOCK inputs to accept LVDS
levels.
MARKING
DIAGRAM*
LQFP−64
FA SUFFIX
CASE 848G
A
WL
YY
WW
G
NB100
EP223
AWLYYWWG
64
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
Features
• 100 ps Typical Device−to−Device Skew
• 25 ps Typical Within Device Skew
• HSTL Compatible Outputs Drive 50 W to Ground With No
•
•
•
•
•
•
•
Offset Voltage
Maximum Frequency >500 MHz
1 ns Typical Propagation Delay
LVPECL and HSTL Mode Operating Range: VCC = 3 V to 3.6 V
with GND = 0 V, VCCO = 1.6 V to 2.0 V
Q Output will Default Low with Inputs Open
Thermally Enhanced 64−Lead LQFP
CLOCK Inputs are LVDS−Compatible; Requires External 100 W
LVDS Termination Resistor
Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 7
1
Publication Order Number:
NB100EP223/D
Q7
Q8
Q8
Q9
Q9
Q10
Q10
Q11
Q11
Q12
Q12
Q13
Q13
VCCO
VCC0
Q7
VCCO
NB100EP223
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
48
49
32
VCC0
Q6
50
31
Q14
Q6
51
30
Q14
Q5
52
29
Q15
Q5
53
28
Q15
Q4
54
27
Q16
Q4
55
26
Q16
Q3
56
25
Q17
Q3
57
24
Q17
Q2
58
23
Q18
Q2
59
22
Q18
Q1
60
21
Q19
Q1
61
20
Q19
Q0
62
19
Q20
Q0
63
18
Q20
VCC0
64
17
VCC0
12
13
14
15
16
Q21
VCC0
11
Q21
10
NC
9
NC
8
OE
VCC
7
GND
NC
6
LVPECL_CLK
NC
5
LVPECL_CLK
4
CLK_SEL
3
HSTL_CLK
2
HSTL_CLK
1
VCC0
NB100EP223
All VCC, VCCO, and GND pins must be externally connected to appropriate Power Supply to guarantee proper operation (VCC 0 VCCO).
The thermally conductive exposed pad on package bottom (see package case drawing) is electrically connected to GND internally.
Figure 1. 64−Lead LQFP Pinout (Top View)
Table 1. PIN DESCRIPTION
PIN
HSTL_CLK*, HSTL_CLK**
LVPECL_CLK*, LVPECL_CLK**
CLK_SEL**
OE**
Q0−Q21, Q0−Q21
VCC
VCCO
GND***
Table 2. FUNCTION TABLE
FUNCTION
OE*
CLK_SEL
Q0−Q21
Q0−Q21
HSTL, LVPECL or LVDS Differential Inputs
L
H
L
L
LVPECL Differential Inputs
L
H
L
H
LVCMOS/LVTTL Input CLK Select
H
L
HSTL_CLK
HSTL_CLK
LVCMOS/LVTTL Output Enable
H
H
LVPECL_CLK
LVPECL_CLK
HSTL Differential Outputs
Positive Supply_Core (3.0 V − 3.6 V)
* The OE (Output Enable) signal is synchronized with the
Positive Supply_HSTL Outputs(1.6V−2.0V) rising edge of the HSTL_CLK and LVPECL_CLK signal.
Ground
* Pins will default LOW when left open.
** Pins will default HIGH when left open.
*** The thermally conductive exposed pad on the bottom of the package is electrically connected to GND internally.
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2
NB100EP223
CLK_SEL
HSTL_CLK
0
22
HSTL_CLK
22
LVPECL_CLK
Q0−Q21 (HSTL)
1
LVPECL_CLK
VCC
GND
Q0−Q21 (HSTL)
Q
VCCO
D
OE
Figure 2. Logic Diagram
Table 3. ATTRIBUTES
Characteristics
Value
Internal Input Pulldown Resistor
75 kW
Internal Input Pullup Resistor
ESD Protection
37.5 kW
Human Body Model
Machine Model
Charged Device Model
> 2 kV
> 150 V
> 2 kV
Moisture Sensitivity (Note 1)
LQFP−64
Flammability Rating
Oxygen Index: 28 to 34
Pb Pkg
Pb−Free Pkg
Level 2
Level 3
UL 94 V−0 @ 0.125 in
Transistor Count
693
Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
1. For additional information, refer to Application Note AND8003/D.
Table 4. MAXIMUM RATINGS
Symbol
Parameter
Condition 1
Condition 2
Rating
Unit
VCC
Core Power Supply
GND = 0 V
VCCO = 1.8 V
4
V
VCCO
HSTL Output Power Supply
GND = 0 V
VCC = 3.3 V
4
V
VI
PECL Mode Input Voltage
GND = 0 V
VI ≤ VCC
4
V
Iout
Output Current
Continuous
Surge
50
100
mA
mA
TA
Operating Temperature Range
0 to +85
°C
Tstg
Storage Temperature Range
−65 to +150
°C
qJA
Thermal Resistance (Junction−to−Ambient)
(See Application Information)
0 lfpm
500 lfpm
64 LQFP
64 LQFP
35.6
30
°C/W
°C/W
qJC
Thermal Resistance (Junction−to−Case)
(See Application Information)
0 lfpm
500 lfpm
64 LQFP
64 LQFP
3.2
6.4
°C/W
°C/W
Tsol
Wave Solder
265
265
°C
Pb
Pb−Free
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
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3
NB100EP223
Table 5. LVPECL DC CHARACTERISTICS VCC = 3.3 V; VCCO = 1.8 V; GND = 0 V
0°C
Symbol
Characteristic
85°C
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
82
100
130
82
100
130
82
100
130
mA
ICC
Power Supply Current
VIH
Input HIGH Voltage (Single−Ended)
2135
2420
2135
2420
2135
2420
mV
VIL
Input LOW Voltage (Single−Ended)
1490
1675
1490
1675
1490
1675
mV
VIHCMR
Input HIGH Voltage Common Mode
Range (Differential) (Note 2) (Figure 4)
LVPECL_CLK/LVPECL_CLK
HSTL_CLK/HSTL_CLK
1.2
0.3
3.3
1.6
1.2
0.3
3.3
1.6
1.2
0.3
3.3
1.6
V
V
150
mA
IIH
Input HIGH Current
IIL
Input LOW Current
VCC
25°C
Min
150
CLK
CLK
150
0.5
−150
0.5
−150
0.5
−150
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
2. VIHCMR min varies 1:1 with VCC. The VIHCMR range is referenced to the most positive side of the differential input signal.
Table 6. LVTTL/LVCMOS DC CHARACTERISTICS VCC = 3.3 V; VCCO = 1.8 V; GND = 0 V
0°C
Symbol
Min
Characteristic
25°C
Typ
Max
Min
2.0
Typ
85°C
Max
VIH
Input HIGH Voltage
2.0
VIL
Input LOW Voltage
IIH
Input HIGH Current
−150
150
−150
150
IIL
Input LOW Current
−300
300
−300
300
Min
Typ
Max
2.0
0.8
Unit
V
0.8
0.8
V
−150
150
mA
−300
300
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
Table 7. HSTL DC CHARACTERISTICS VCC = 3.3 V; VCCO = 1.6−2.0 V; GND = 0 V
0°C
Symbol
Characteristic
Min
Typ
25°C
Max
Min
Typ
85°C
Max
Min
Typ
Max
Unit
VOH
Output HIGH Voltage (Note 3)
1000
1200
1000
1200
1000
1200
mV
VOL
Output LOW Voltage (Note 3)
0
400
0
400
0
400
mV
VIH
Input HIGH Voltage (Differential)
HSTL_CLK/HSTL_CLK
VX+100
1600
VX+100
1600
VX+100
1600
mV
VIL
Input LOW Voltage (Differential)
HSTL_CLK/HSTL_CLK
−300
VX−100
−300
VX−100
−300
VX−100
mV
VX
Differential Cross Point Voltage
680
900
680
900
680
900
mV
IIH
Input HIGH Current
−150
150
−150
150
−150
150
mA
IIL
Input LOW Current
−300
300
−300
300
−300
300
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
3. All outputs loaded with 50 W to GND (See Figure 6).
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NB100EP223
Table 8. AC CHARACTERISTICS VCC = 3.0 V to 3.6 V; VCCO = 1.6 V to 2.0 V; GND = 0 V (Note 4)
0°C
Symbol
Characteristic
Min
Typ
25°C
Max
85°C
Min
Typ
Max
600
750
750
850
900
950
1100
1200
Min
Typ
Max
600
700
800
850
1000
1050
1300
1350
ps
ps
Unit
VOpp
Differential Output Voltage
(Figure 3)
fout < 500 MHz
600
750
tPLH
tPHL
Propagation Delay (Differential)
LVPECL_CLK to Q
HSTL_CLK to Q
700
800
900
900
1000
1100
tskew
Within−Device Skew (Note 5)
Device−to−Device Skew (Note 6)
25
100
50
250
30
200
65
450
50
250
115
450
ps
ps
tJITTER
Random Clock Jitter (Figure 3) (RMS)
0.5
2
0.5
2
0.5
2
ps
VPP
Input Swing (Differential Mode)
(Note 8) (Figure 4)
LVPECL, HSTL
150
800
1200
800
1200
800
1200
tS
OE Set Up Time (Note 7)
1.0
1.0
1.0
ns
tH
OE Hold Time
0.5
0.5
0.5
ns
tr/tf
Output Rise/Fall Time (20%−80%)
300
450
700
150
275
450
700
150
350
500
mV
750
mV
ps
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
4. Measured with 750 mV (LVPECL) source or 1 V (HSTL) source, 50% duty cycle clock source. All outputs loaded with 50 W to ground
(See Figure 6).
5. Skew is measured between outputs under identical transitions and conditions on any one device.
6. Device−to−Device skew for identical transitions at identical VCC levels.
7. OE Set Up Time is defined with respect to the rising edge of the clock. OE High−to−Low transition ensures outputs remain disabled during
the next clock cycle. OE Low−to−High transition enables normal operation of the next input clock (See Figure 7).
8. VPP is the differential input voltage swing required to maintain AC characteristics including tPD and device−to−device skew.
10
9.0
800
8.0
700
7.0
Q AMP (mV)
600
6.0
5.0
500
4.0
3.0
400
2.0
300
200
RMS JITTER (ps)
OUTPUT AMPLITUDE (mV)
900
RMS JITTER (ps)
0.5
0.6
0.7
0.8
0.9
1.0
1.0
0
FREQUENCY (GHz)
Figure 3. Output Frequency (FOUT) versus Output Voltage (VOPP) and Random Clock Jitter (tJITTER)
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NB100EP223
VPP
VIHCMR
VCC(LVPECL)
VCCO(HSTL)
VIH(DIFF)
VIH(DIFF)
VX
VPP
VIL(DIFF)
GND
Figure 4. LVPECL Differential Input Levels
Q
VIL(DIFF)
GND
Figure 5. HSTL Differential Input Levels
Z = 50 W
HSTL OUTPUT Q
50 W
50 W
GROUND
Figure 6. HSTL Output Termination and AC Test Reference
CLK
CLK
OE
Q
Q
Figure 7. Output Enable (OE) Timing Diagram
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NB100EP223
APPLICATIONS INFORMATION
Using the thermally enhanced package of the
NB100EP223
supply enough solder paste to fill those vias and not starve
the solder joints. The attachment process for the exposed pad
package is equivalent to standard surface mount packages.
Figure 9, “Recommended solder mask openings”, shows a
recommended solder mask opening with respect to a 4 X 4
thermal via array. Because a large solder mask opening may
result in a poor rework release, the opening should be
subdivided as shown in Figure 9. For the nominal package
standoff of 0.1 mm, a stencil thickness of 5 to 8 mils should
be considered.
The NB100EP223 uses a thermally enhanced 64−lead
LQFP package. The package is molded so that a portion of
the leadframe is exposed at the surface of the package
bottom side. This exposed metal pad will provide the low
thermal impedance that supports the power consumption of
the NB100EP223 high−speed bipolar integrated circuit and
will ease the power management task for the system design.
In multilayer board designs, a thermal land pattern on the
printed circuit board and thermal vias are recommended to
maximize both the removal of heat from the package and
electrical performance of the NB100EP223. The size of the
land pattern can be larger, smaller, or even take on a different
shape than the exposed pad on the package. However, the
solderable area should be at least the same size and shape as
the exposed pad on the package. Direct soldering of the
exposed pad to the thermal land will provide an efficient
thermal conduit. The thermal vias will connect the exposed
pad of the package to internal copper planes of the board.
The number of vias, spacing, via diameters and land pattern
design depend on the application and the amount of heat to
be removed from the package.
Maximum thermal and electrical performance is achieved
when an array of vias is incorporated in the land pattern.
The recommended thermal land design for NB100EP223
applications on multi−layer boards comprises a 4 X 4
thermal via array using a 1.2 mm pitch as shown in Figure 8
providing an efficient heat removal path.
All Units mm
0.2
4.6
1.0
1.0
0.2
4.6
Thermal Via Array (4 X 4)
1.2 mm Pitch
0.3 mm Diameter
Exposed Pad
Land Pattern
Figure 9. Recommended Solder Mask Openings
All Units mm
Proper thermal management is critical for reliable system
operation. This is especially true for high−fanout and high
output drive capability products.
For thermal system analysis and junction temperature
calculation the thermal resistance parameters of the package
is provided:
4.6
Table 9. Thermal Resistance *
4.6
Thermal Via Array (4 X 4)
1.2 mm Pitch
0.3 mm Diameter
lfpm
qJA 5C/W
qJC 5C/W
0
35.6
3.2
100
32.8
4.9
500
30.0
6.4
* Junction to ambient and Junction to board, four−conductor
layer test board (2S2P) per JESD 51−8
These recommendations are to be used as a guideline,
only. It is therefore recommended that users employ
sufficient thermal modeling analysis to assist in applying the
general recommendations to their particular application to
assure adequate thermal performance. The exposed pad of
the NB100EP223 package is electrically shorted to the
substrate of the integrated circuit and GND. The thermal
land should be electrically connected to GND.
Exposed Pad
Land Pattern
Figure 8. Recommended Thermal Land Pattern
The via diameter should be approximately 0.3 mm with
1 oz. copper via barrel plating. Solder wicking inside the via
may result in voiding during the solder process and must be
avoided. If the copper plating does not plug the vias, stencil
print solder paste onto the printed circuit pad. This will
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NB100EP223
ORDERING INFORMATION
Package
Shipping †
NB100EP223FA
LQFP−64
160 Units / Tray
NB100EP223FAG
LQFP−64
(Pb−Free)
160 Units / Tray
NB100EP223FAR2
LQFP−64
1500 / Tape & Reel
NB100EP223FAR2G
LQFP−64
(Pb−Free)
1500 / Tape & Reel
Device
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
Resource Reference of Application Notes
AN1405/D
− ECL Clock Distribution Techniques
AN1406/D
− Designing with PECL (ECL at +5.0 V)
AN1503/D
− ECLinPSt I/O SPiCE Modeling Kit
AN1504/D
− Metastability and the ECLinPS Family
AN1568/D
− Interfacing Between LVDS and ECL
AN1672/D
− The ECL Translator Guide
AND8001/D
− Odd Number Counters Design
AND8002/D
− Marking and Date Codes
AND8020/D
− Termination of ECL Logic Devices
AND8066/D
− Interfacing with ECLinPS
AND8090/D
− AC Characteristics of ECL Devices
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8
NB100EP223
PACKAGE DIMENSIONS
LQFP 64 LEAD EXPOSED PAD
848G−02
ISSUE A
4 PL
M
M/2
−Z−
0.20 (0.008) T X−Y Z
AJ AJ
64
49
1
48
ÇÇÇÇ
ÉÉÉÉ
ÉÉÉÉ
ÇÇÇÇ
ÉÉÉÉ
ÇÇÇÇ
PLATING
−X−
AA
−Y−
L
B
B/2
L/2
16
D
REF
33
0.08 (0.003)
32
17
J
AB
M
Y T−U
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MM.
3. DATUM PLANE E" IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE LEAD
WHERE THE LEAD EXITS THE PLASTIC BODY AT
THE BOTTOM OF THE PARTING PLANE.
4. DATUM X", Y" AND Z" TO BE DETERMINED AT
DATUM PLANE DATUM E".
5. DIMENSIONS M AND L TO BE DETERMINED AT
SEATING PLANE DATUM T".
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE
BASE
DETERMINED AT DATUM PLAND E".
METAL 7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL NOT CAUSE THE LEAD
WIDTH TO EXCEED THE MAXIMUM D DIMENSION
BY MORE THAN 0.08 (0.003). DAMBAR CANNOT
BE LOCATED ON THE LOWER RADIUS OR THE
FOOT. MINIMUM SPACE BETWEEN PROTRUSION
AND ADJACENT LEAD OR PROTRUSION 0.07
(0.003).
8. EXACT SHAPE OF EACH CORNER IS OPTIONAL.
Z
DIM
A
B
C
D
F
G
H
J
K
L
M
N
P
R
S
V
W
AA
AB
AC
AD
AE
AF
DETAIL AJ−AJ
A/2
0.20 (0.008) E X−Y Z
A
DETAIL AH
−E−
−T−
AG
AG
G/2
SEATING
PLANE
G
0.08 (0.003) T
4 PL
60 PL
D
0.08 (0.003)
64 PL
M
T X−Y
V
Z
0.05 (0.002)
R
S
AC
AD
AE
EXPOSED PAD
17
32
33
16
S
C
W
N
K
P
F
AF
H
DETAIL AH
1
48
64
49
VIEW AG−AG
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0.25
GAGE
PLANE
MILLIMETERS
MIN
MAX
10.00 BSC
10.00 BSC
1.35
1.45
0.17
0.27
0.45
0.75
0.50 BSC
1.00 REF
0.09
0.20
0.05
0.15
12.00 BSC
12.00 BSC
0.20
−−−
0_
7_
0_
−−−
−−−
1.60
11 _
13 _
11 _
13 _
0.17
0.23
0.09
0.16
0.08
−−−
0.08
−−−
4.50
4.78
4.50
4.78
INCHES
MIN
MAX
0.394 BSC
0.394 BSC
0.053
0.057
0.007
0.011
0.018
0.030
0.020 BSC
0.039 BSC
0.004
0.008
0.002
0.006
0.472 BSC
0.472 BSC
0.008
−−−
0_
7_
0_
−−−
−−− 0.063
11 _
13 _
11 _
13 _
0.007
0.009
0.004
0.006
0.003
−−−
0.003
−−−
0.180
0.188
0.180
0.188
NB100EP223
ECLinPS is a trademark of Semiconductor Components INdustries, LLC (SCILLC).
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
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