ICST ICS8533AG-01, ICS8533AG-01T Datasheet
Integrated
Circuit
Systems, Inc.
ICS8533-01
LOW SKEW, 1-TO-4
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
,&6
HiPerClockS™
The CLK, nCLK pair can accept most standard differential
input levels. The PCLK, nPCLK pair can accept L VPECL, CML,
or SSTL input 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 ICS8533-01 ideal for those applications demanding
well defined performance and repeatability.
The ICS8533-01 is a low skew, high performance 1-to-4 Differential-to-3.3V L VPECL fanout
buffer and a member of the HiPerClockS™ family
of High Performance Clock Solutions from ICS.
The ICS8533-01 has two selectable clock inputs.
FEATURES
• 4 differential 3.3V L VPECL outputs
• Selectable CLK, nCLK or L VPECL clock inputs
• CLK, nCLK pair can accept the following differential input
levels: L VDS, LVPECL, HSTL, SSTL, HCSL
• PCLK, nPCLK supports the following input types:
LVPECL, CML, SSTL
• Maximum output frequency up to 650MHz
• Translates any single-ended input signal to 3.3V L VPECL
levels with resistor bias on nCLK input
• Output skew: 30ps (maximum)
• Part-to-part skew: 150ps (maximum)
• Propagation delay: 1.4ns (maximum)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
BLOCK DIAGRAM PIN ASSIGNMENT
20
1
CLK_EN
CLK
nCLK
PCLK
nPCLK
CLK_SEL
D
Q
LE
0
1
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
6.5mm x 4.4mm x 0.92mm Package Body
VEE
CLK_EN
CLK_SEL
CLK
nCLK
PCLK
nPCLK
nc
nc
V
CC
ICS8533-01
20-Lead TSSOP
2
3
4
5
6
7
8
9
10
G Package
Top View
8533AG-01 www.icst.com/products/hiperclocks.html REV. B JULY 16, 2001
1
19
18
17
16
15
14
13
12
11
Q0
nQ0
V
CC
Q1
nQ1
Q2
nQ2
V
CC
Q3
nQ3
Integrated
Circuit
Systems, Inc.
TABLE 1. PIN DESCRIPTIONS
rebmuNemaNepyTnoitpircseD
1V
2NE_KLCtupnIpulluP
3LES_KLCtupnInwodlluP
4KLCtupnInwodlluP.tupnikcolclaitnereffidgnitrevni-noN
5KLCntupnIpulluP.tupnikcolclaitnereffidgnitrevnI
6KLCPtupnInwodlluP.tupnikcolcLCEPVLlaitnereffidgnitrevni-noN
7KLCPntupnIpulluP.tupnikcolcLCEPVLlaitnereffidgnitrevnI
9,8cndesunU.tcennocoN
81,31,01V
21,113Q,3QntuptuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
51,412Q,2QntuptuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
71,611Q,1QntuptuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
02,910Q,0QntuptuO.slevelecafretniLCEPVL.riaptuptuolaitnereffiD
:ETON
pulluP
EE
CC
dna
nwodlluP
rewoP.dnuorgottcennoC.nipylppusevitageN
rewoP.V3.3ottcennoC.snipylppusevitisoP
ICS8533-01
LOW SKEW, 1-TO-4
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
kcolcwollofstuptuokcolc,HGIHnehW.elbanekcolcgnizinorhcnyS
decroferastuptuoQn,woldecroferastuptuoQ,WOLnehW.tupni
.slevelecafretniLTTVL/SOMCVL.hgih
KLCPn,KLCPlaitnereffidstceles,HGIHnehW.tupnitceleskcolC
.stupniKLCn,KLCstceles,WOLnehW.stupni
.slevelecafretniLTTVL/SOMCVL
.seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretniotsrefer
TABLE 2. PIN CHARACTERISTICS
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
C
NI
R
PULLUP
R
NWODLLUP
KLCn,KLC4Fp
ecnaticapaCtupnI
rotsiseRpulluPtupnI 15KΩ
rotsiseRnwodlluPtupnI 15KΩ
KLCPn,KLCP4Fp
LES_KLC,NE_KLC4Fp
8533AG-01 www.icst.com/products/hiperclocks.html REV. B JULY 16, 2001
2
Integrated
Circuit
Systems, Inc.
TABLE 3A. CONTROL INPUT FUNCTION TABLE
stupnIstuptuO
NE_KLCLES_KLCecruoSdetceleS3Qurht0Q3Qnurht0Qn
00 KLCn,KLCWOL;delbasiDHGIH;delbasiD
01 KLCPn,KLCPWOL;delbasiDHGIH;delbasiD
10 KLCn,KLCdelbanEdelbanE
11 KLCPn,KLCPdelbanEdelbanE
.1erugiFninwohssa
.B3elbaTni
ICS8533-01
LOW SKEW, 1-TO-4
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
egdekcolctupnignillafdnagnisiragniwollofdelbanerodelbasiderastuptuokcolceht,sehctiwsNE_KLCretfA
debircsedsastupniKLCPn,KLCPdnaKLCn,KLCehtfonoitcnufaerastuptuoehtfoetatseht,edomevitcaehtnI
nCLK, nPCLK
CLK, PCLK
CLK_EN
nQ0 - nQ3
Q0 - Q3
TABLE 3B. CLOCK INPUT FUNCTION TABLE
stupnIstuptuO
KLCProKLCKLCPnroKLCn3Qurht0Q3Qnurht0Qn
01WOLHGIHlaitnereffiDotlaitnereffiDgnitrevnInoN
10 HGIHWOLlaitnereffiDotlaitnereffiDgnitrevnInoN
01ETON;desaiBWOLHGIHlaitnereffiDotdednEelgniSgnitrevnInoN
11ETON;desaiBHGIHWOLlaitnereffiDotdednEelgniSgnitrevnInoN
1ETON;desaiB0HGIHWOLlaitnereffiDotdednEelgniSgnitrevnI
1ETON;desaiB1WOLHGIHlaitnereffiDotdednEelgniSgnitrevnI
.sleveldedneelgnistpeccaottupni
EnabledDisabled
FIGURE 1 - CLK_EN TIMING DIAGRAM
edoMtuptuOottupnIytiraloP
laitnereffidehtgniriwsessucsidhcihw,8erugiF,8egapnonoitcesnoitamrofnInoitacilppAehtotreferesaelP:1ETON
8533AG-01 www.icst.com/products/hiperclocks.html REV. B JULY 16, 2001
3
Integrated
Circuit
Systems, Inc.
ICS8533-01
LOW SKEW, 1-TO-4
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
Inputs, V
I
Outputs, V
Package Thermal Impedance, θ
Storage T emperature, T
CCx
O
JA
STG
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 condition or any conditions beyond those listed in the
DC Characteristics
or
AC Characteristics
ods may affect product reliability .
4.6V
-0.5V to VCC + 0.5V
-0.5V to VCC + 0.5V
73.2°C/W (0lfpm)
-65°C to 150°C
is not implied. Exposure to absolute maximum rating conditions for extended peri-
TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, V
=3.3V±5%, TA = 0°C TO 70°C
CC
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
CC
I
EE
egatloVylppuSevitisoP 531.33.3564.3V
tnerruCylppuSrewoP 05Am
TABLE 4B. LVCMOS / L VTTL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
V
HI
V
LI
I
HI
I
LI
TABLE 4C. DIFFERENTIAL DC CHARACTERISTICS, V
lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU
I
HI
I
LI
V
PP
V
RMC
2,1ETON
egatloVhgiHtupnILES_KLC,NE_KLC2567.3V
egatloVwoLtupnILES_KLC,NE_KLC3.0-8.0V
tnerruChgiHtupnI
tnerruCwoLtupnI
tnerruChgiHtupnI
tnerruCwoLtupnI
NE_KLCV
LES_KLCV
NE_KLCV
LES_KLCV
=3.3V±5%, TA = 0°C TO 70°C
CC
KLCnV
KLCV
KLCnV
KLCV
CC
CC
egatloVtupnIkaeP-ot-kaeP 51.03.1V
;egatloVtupnIedoMnommoC
VsadenifedsiegatlovedomnommoC:2ETON
.
=3.3V±5%, TA = 0°C TO 70°C
CC
V=
NI
CC
V=
NI
CC
V,V0=
NI
V,V0=
NI
V=
CC
NI
V=
CC
NI
V,V564.3=
V,V564.3=
V564.3=5Aµ
V564.3=051Aµ
CC
CC
V564.3=051-Aµ
V564.3=5-Aµ
V564.3=5Aµ
V564.3=051Aµ
V0=051-Aµ
NI
V0=5-Aµ
NI
5.0V
VsiKLCndnaKLCrofegatlovtupnimumixamehtsnoitacilppadedneelgnisroF:1ETON
CC
.V3.0+
58.0-V
CC
8533AG-01 www.icst.com/products/hiperclocks.html REV. B JULY 16, 2001
4
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