Page 1
Integrated
Circuit
Systems, Inc.
ICS8343
LOW SKEW 1-TO-16
ANOUT BUFFER
F
GENERAL DESCRIPTION
The ICS8343 is a low skew, 1-to-16 Fanout
,&6
HiPerClockS™
the commercial temperature range. Guaranteed output and
part-to-part skew characteristics make the ICS8343 ideal for
those clock distribution applications demanding well defined
performance and repeatability.
Buffer and a member of the HiPerClockS
family of High Performance Clock Solutions
from ICS. The ICS8343 is at 3.3V, 2.5V and
mixed 3.3V input and 2.5V supply modes over
FE ATURES
• 16 LVCMOS outputs
• Output frequency up to 200MHz
• 250ps output skew
• 700ps part to part
• CMOS compatible clock input at 5V, LVTTL and LVCMOS
compatible at 3.3V and 2.5V
• LVTTL output enable inputs
• Dual output enable inputs facilitates 1-to-16 or 1-to-8 input to
output modes
• 3.3V, 2.5V or mixed 3.3V, 2.5V from 0°C to 70°C ambient
operating temperature
• 32 lead low-profile QFP(LQFP), 7mm x 7mm x 1.4mm
package body, 0.8mm package lead pitch
BLOCK DIAGRAM PIN ASSIGNMENT
CLK
VDD1 VDD2VDD
OE2
OE1
Q0
Q1
Q2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE1
GND
OE2
Q15
Q14
Q13
Q12
Q11
Q10
Q9
Q8
VDD1
VDD1
VDD1
Q3
Q4
GND
GND
GND
32 31 30 2 9 28 27 26 2 5
1
2
3
4
5
6
7
8
ICS8343
9 10 11 12 13 14 1 5 16
VDD
CLK
Q7
Q6
Q5
Q15
Q8
Q14
Q9
Q13
Q10
24
VDD2
23
VDD2
22
VDD2
21
Q12
20
Q11
19
GND
18
GND
GND
17
32-Lead LQFP
(Top View)
8343 www.icst.com REV. C, 07072000
1
Page 2
Integrated
Circuit
Systems, Inc.
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
3,2,11DDVrewoP .V5.2roV3.3,V5ottcennoC.ylppusrewop7Qurht0QtuptuO
5,44Q,3QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
8,7,6DNGrewoP.dnuorgottcennoC
11,01,97Q,6Q,5QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
21KLCtupnI.tupnikcolC
31DDVrewoPV5.2roV3.3,V5ottcennoC.ylppusrewoptupnI
61,51,4101Q,9Q,8QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
91,81,71DNGrewoP.dnuorgottcennoC
12,0221Q,11QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
42,32,222DDVrewoP .V5.2roV3.3,V5ottcennoC.ylppusrewop51Qurht8QtuptuO
72,62,5251Q,41Q,31QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
822EOtupnIpulluP .etatsZiHot51Qurht8QstuptuosecrofwolnehW.elbanetuptuO
921EOtupnIpulluP .etatsZiHot7Qurht0QstuptuosecrofwolnehW.elbanetuptuO
23,13,032Q,1Q,0QtuptuO41.stuptuokcolC Ω .ecnadepmituptuolacipyt
ICS8343
LOW SKEW 1-TO-16
ANOUT BUFFER
F
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
NICecnaticapaCtupnI Fp
DPC
)tuptuorep(
ecnaticapaCnoitapissiDrewoP
V52.5=2DDV,1DDV51Fp
V74.3=2DDV,1DDV11Fp
V36.2=2DDV,1DDV5.9Fp
TABLE 3. FUNCTION TABLE
Inputs Outputs
OE1 OE2 Q0 thru Q7 Q8 thru Q15
00 Hi Z Hi Z
1 0 Active Hi Z
01 Hi Z Active
1 1 Active Active
8343 www.icst.com REV. C, 07072000
2
Page 3
Integrated
Circuit
Systems, Inc.
LOW SKEW 1-TO-16
ICS8343
ANOUT BUFFER
F
ABSOLUTE MAXIMUM RATINGS
Supply Voltage 7V
Inputs -0.5V to VDD+0.5 V
Outputs -0.5V to VDD+0.5V
Ambient Operating Temperature 0°C to 70°C
Storage Temperature -65°C to 150°C
Stresses beyond 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 conditions beyond those listed in the DC Electrical Characteristics or AC Electrical
Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
TABLE 4A. DC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 3.3V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
2DDV,1DDV,DDVegatloVylppuSgnitarepO 531.33.3564.3V
HIVegatloVhgiHtupnI
LIVegatloVwoLtupnIKLCV531.3=DDV3.0-8.0V
HIItnerruChgiHtupnIKLCDDV=NIV1Aµ
LIItnerruCwoLtupnIKLCV0=NIV51-Aµ
DDItnerruCylppuSgnitarepOtupnI 001Aµ
HOVegatloVhgiHtuptuOAm52-=HOI,V531.3=DDV4.2V
LOVegatloVwoLtuptuOAm52=LOI,V531.3=DDV8.0V
HZOItnerruCegakaeLecnadepmIhgiHDDV=TUOV,V0=xEO1Aµ
LZOItnerruCegakaeLecnadepmIhgiH=TUOV,V0=xEOV01-Aµ
KLCV564.3=DDV2 3.0+DDVV
xEOV564.3=DDV2 3.0+DDVV
xEOV531.3=DDV3.0-8.0V
xEODDV=NIV1Aµ
xEOV0=NIV51-Aµ
TABLE 5A. AC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 3.3V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
XAMfycneuqerFtupnImumixaM 002zHM
HLpthgiH-ot-woL,yaleDnoitagaporP0< f ≤ zHM0021.11.21.3sn
LHptwoL-ot-hgiH,yaleDnoitagaporP0< f ≤ zHM0022.10.27.2sn
)o(kst3ETON;wekStuptuO2/xDDV@egdegnisirnoderusaeM052sp
)p(kst4ETON;wekSssecorP2/xDDV@egdegnisirnoderusaeM054sp
)pp(kst
RtemiTesiRtuptuO 5.08.0sn
FtemiTllaFtuptuO 9.07.1sn
WPthtdiWesluPtuptuO
8343 www.icst.com REV. C, 07072000
5ETON;wekStraP-ot-traP2/xDDV@egdegnisirnoderusaeM007sp
2/ELCYCt
5.0-
.esiwrehtodetonsselnuXAMftaderusaemsretemarapllA:1ETON
05htiwdetanimretstuptuO:2ETON Ω .2/xDDVotdetcennocrotsiser
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttastuptuossorcawekssadenifeD:3ETON
3
2/ELCYCt
2/ELCYCt
5.0+
sn
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnotuptuoemasehttawekssadenifeD:4ETON
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnostuptuotnereffidtawekssadenifeD:5ETON
Page 4
Integrated
Circuit
Systems, Inc.
LOW SKEW 1-TO-16
ICS8343
ANOUT BUFFER
F
TABLE 4B. DC ELECTRICAL CHARACTERISTICS, VDD = 3.3V±5%, VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
DDVegatloVylppuSgnitarepOtupnI 531.33.3564.3V
2DDV,1DDVegatloVylppuSgnitarepOtuptuO 573.25.2526.2
HIVegatloVhgiHtupnIKLC564.3=DDV2 3.0+DDVV
xEO564.3=DDV2 3.0+DDVV
LIVegatloVwoLtupnIKLC531.3=DDV3.0-8.0V
xEO531.3=DDV3.0-8.0V
HIItnerruChgiHtupnIKLCDDV=NIV1Aµ
xEODDV=NIV1Aµ
LIItnerruCwoLtupnIKLCV0=NIV51-Aµ
xEOV0=NIV51-Aµ
DDItnerruCylppuSgnitarepOtupnI 001Aµ
HOVegatloVhgiHtuptuOAm52-=HOI,V573.2=DDV5.1V
LOVegatloVwoLtuptuOAm52=LOI,V573.2=DDV8.0V
HZOItnerruCegakaeLecnadepmIhgiHDDV=TUOV,V0=xEO1Aµ
LZOItnerruCegakaeLecnadepmIhgiH=TUOV,V0=xEOV01-Aµ
TABLE 5B. AC ELECTRICAL CHARACTERISTICS, VDD = 3.3V±5%, VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
XAMfycneuqerFtupnImumixaM 002zHM
HLpthgiH-ot-woL,yaleDnoitagaporP0< f ≤ zHM0020.13.22.3sn
LHptwoL-ot-hgiH,yaleDnoitagaporP0< f ≤ zHM0024.13.22.3sn
)o(kst3ETON;wekStuptuO2/xDDV@egdegnisirnoderusaeM052sp
)p(kst4ETON;wekSssecorP2/xDDV@egdegnisirnoderusaeM054sp
)pp(kst
RtemiTesiRtuptuO 5.08.0sn
FtemiTllaFtuptuO 9.07.1sn
WPthtdiWesluPtuptuO
5ETON;wekStraP-ot-traP2/xDDV@egdegnisirnoderusaeM007sp
2/ELCYCt
5.0-
.esiwrehtodetonsselnuXAMftaderusaemsretemarapllA:1ETON
05htiwdetanimretstuptuO:2ETON Ω .2/xDDVotdetcennocrotsiser
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttastuptuossorcawekssadenifeD:3ETON
2/ELCYCt
2/ELCYCt
5.0+
sn
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnotuptuoemasehttawekssadenifeD:4ETON
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnostuptuotnereffidtawekssadenifeD:5ETON
8343 www.icst.com REV. C, 07072000
4
Page 5
Integrated
Circuit
Systems, Inc.
LOW SKEW 1-TO-16
ICS8343
ANOUT BUFFER
F
TABLE 4C. DC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
2DDV,1DDV,DDVegatloVylppuSgnitarepO 573.25.2526.2V
HIVegatloVhgiHtupnIKLC526.2=DDV2 3.0+DDVV
xEO526.2=DDV2 3.0+DDVV
LIVegatloVwoLtupnIKLC573.2=DDV3.0-7.0V
xEO573.2=DDV3.0-8.0V
HIItnerruChgiHtupnIKLCDDV=NIV1Aµ
xEODDV=NIV1Aµ
LIItnerruCwoLtupnIKLCV0=NIV01-Aµ
xEOV0=NIV01-Aµ
DDItnerruCylppuSgnitarepOtupnI 001Aµ
HOVegatloVhgiHtuptuOAm52-=HOI,V573.2=DDV5.1V
LOVegatloVwoLtuptuOAm52=LOI,V573.2=DDV8.0V
HZOItnerruCegakaeLecnadepmIhgiHDDV=TUOV,V0=xEO1Aµ
LZOItnerruCegakaeLecnadepmIhgiHV0=TUOV,V0=xEO1-Aµ
TABLE 5C. AC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
XAMfycneuqerFtupnImumixaM 331zHM
HLpthgiH-ot-woL,yaleDnoitagaporP0< f ≤ zHM0020.15.27.3sn
LHptwoL-ot-hgiH,yaleDnoitagaporP0< f ≤ zHM0024.16.25.3sn
)o(kst3ETON;wekStuptuO2/xDDV@egdegnisirnoderusaeM052sp
)p(kst4ETON;wekSssecorP2/xDDV@egdegnisirnoderusaeM005sp
)pp(kst
RtemiTesiRtuptuO 5.08.0sn
FtemiTllaFtuptuO 9.07.1sn
WPthtdiWesluPtuptuO
5ETON;wekStraP-ot-traP2/xDDV@egdegnisirnoderusaeM057sp
2/ELCYCt
57.0-
.esiwrehtodetonsselnuXAMftaderusaemsretemarapllA:1ETON
05htiwdetanimretstuptuO:2ETON Ω .2/xDDVotdetcennocrotsiser
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttastuptuossorcawekssadenifeD:3ETON
2/ELCYCt
2/ELCYCt
57.0+
sn
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnotuptuoemasehttawekssadenifeD:4ETON
.snoitidnocdaollauqehtiwdnasegatlovylppusemasehttagnitareposecivedtnereffidnostuptuotnereffidtawekssadenifeD:5ETON
8343 www.icst.com REV. C, 07072000
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Page 6
Integrated
Circuit
Systems, Inc.
PACKAGE OUTLINE & D IMENSIONS
NOTE 5, 7
NOTE 5, 7
NOTE 3
NOTE 3
-D-
-D-
NOTE 3
NOTE 3
-A-
-A-
e
e
N/4 T I P S
N/4 T I P S
0.20 C A-B D4X
0.20 C A-B D4X 0.20 C A-B D0.20 C A-B D4X
SEE DETAIL “A”
SEE DETAIL “A”
8 PLACES
8 PLACES
11 / 13°
11 / 13°
NOTE 4
NOTE 4
D
D
D1
D1
D/2
D/2
D1/2
D1/2
NOTE 3
NOTE 3
-B-
-B-
E/2
E/2
E1/2
E1/2
A
A
-H-
-H-
NOTE 2 / / 0.10 C
NOTE 2 / / 0.10 C
-C-
-C-
SEE DETAIL “B”
SEE DETAIL “B”
ccc
ccc
ICS8343
LOW SKEW 1-TO-16
ANOUT BUFFER
F
e / 2
e / 2
-A, B, OR -D-
-A, B, OR -D-
b
b
E
E1
E
E1
N
N
N
N
O
O
O
O
T
T
T
T
E
E
E
E
4
4
5,
5,
7
7
NOTES:
1. ALL DIMENSIONS AND TOLERANCING CONFORM TO
ANSI Y14.5-1982
2. DATUM PLANE -H- LOCATED AT MOLD PARTING
LINE AND COINCIDENT WITH LEAD, WHERE LEAD
EXITS PLASTIC BODY AT BOTTOM OF PARTING LINE.
3. DATUMS A-B AND -D- TO BE DETERMINED AT
CENTERLINE BETWEEN LEADS WHERE LEADS EXIT
PLASTIC AT DATUM PLANE -H- .
4. TO BE DETERMINED AT SEATING PLACE -C- .
5. DIMENSIONS D1 AND E1 DO NOT INCLUDE MOLD
PROTRUSION.
6. N IS THE TOTAL NUMBER OF TERMINALS.
7. THESE DIMENSIONS TO BE DETEREMINED AT DATUM
PLANE -H-.
8. PACKAGE TOP DIMENSIONS ARE SMALLER THAN
BOTTOM DIMENSIONS AND TOP OF PACKAGE WILL
NOT OVERHANG BOTTOM OF PACKAGE.
9. DIMENSION b DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.08mm TOTAL IN EXCESS OF THE b
DIMENSION AT MAXIMUM MATERIAL CONDITION.
10. CONTROLLING DIMENSION: MILLIMETER.
11. THIS OUTLINE CONFORMS TO JEDEC PUBLIBCATION
95 REGISTRATION MS-026, VARIATION BBA.
12. A1 IS DEFINED AS THE DISTANCE FROM THE
SEATING PLANE TO THE LOWEST POINT OF THE
PACKAGE.
-A, B, OR -D-
-A, B, OR -D-
S
Y
M
B
O
L
A
1A
2A
D
1D
E
1E
L
N
e
b
1b
ccc
ddd
NIMMONXAM
50.051.0
53.14.154.1
54.006.057.0
03.073.054.0
03.053.004.0
b
b
b
b
1
1
ddd M C A-B S D S
0.08
0.08
R. MIN.
R. MIN.
0.20 MIN.
0.20 MIN.
1.00 REF.
1.00 REF.
WITH LEAD FINISH
WITH LEAD FINISH
BASE METAL
BASE METAL
0° MIN.
0° MIN.
0 .08/0.2 0 R.
0 .08/0.2 0 R.
0° -7 °
0° -7 °
L
L
0.25
0.25
GAUGE PLANE
GAUGE PLANE
NOTE 9 ddd M C A-B S D S
NOTE 9
0 .09 / 0.20 0 .09 / 0.16
0 .09 / 0.20 0 .09 / 0.16
- 0.05 S
- 0.05 S
- 0.05 S
8343 www.icst.com REV. C, 07072000
DATUM
DATUM
A2
A2
PLANE
PLANE
-H-
-H-
A1
A1
NOITAIRAVCEDEJ
ABB
.CSB00.9
.CSB00.7
.CSB00.9
.CSB00.7
23
.CSB08.0
N
SRETEMILLIMNISNOISNEMIDLLA
O
T
E
06.1
21
4
8,7
4
8,7
9
01.0
02.0
6
Page 7
Integrated
Circuit
Systems, Inc.
ORDERING INFORMATION
Y3438SCIY3438SCIPFQLdaeL23yartrep052C°07otC°0
TY3438SCIY3438SCIleeRdnaepaTnoPFQLdaeL230002C°07otC°0
ICS8343
LOW SKEW 1-TO-16
ANOUT BUFFER
F
rebmuNredrO/traPgnikraMegakcaPtnuoCerutarepmeT
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use or
for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal
commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use
in life support devices or critical medical instruments.
8343 www.icst.com REV. C, 07072000
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