ICS8304AMLNT - Integrated Circuit Solution, Inc.

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

GENERAL DESCRIPTION

The ICS8304 is a low skew, 1-to-4 Fanout

Buffer and a member of the HiPerClockS ™

family of High Performance Clock Solutions

from ICS. The ICS8304 is characterized at

full 3.3V for input VDD, and mixed 3.3V and 2.5V

for output operating supply modes (VDDO). Guaranteed out-

put and part-to-part skew characteristics make the

ICS8304 ideal for those clock distribution applications

demanding well defined performance and repeatability.

FEATURES

•4 LVCMOS / LVTTL outputs

•LVCMOS / LVTTL clock input

•Maximum output frequency: 200MHz

•Output skew: 45ps (maximum at 3.3V supply)

•Part-to-part skew: 500ps (maximum)

•Small 8 lead SOIC package saves board space

•3.3V input, outputs may be either 3.3V or 2.5V supply modes

•Lead-Free package available

•0°C to 70°C ambient operating temperature

BLOCK DIAGRAM PIN ASSIGNMENT

ICS8304

8-Lead SOIC, 150mil

3.9mm x 4.9mm, x 1.63mm package body

M Package

Top View

VDDO

VDD

CLK

GND

CLK

HiPerClockS™

ICS

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TABLE 1. PIN DESCRIPTIONS

TABLE 2. PIN CHARACTERISTICS

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

ecnaticapaCtupnI 4Fp

ecnaticapaCnoitapissiDrewoP

)tuptuorep( V

ODD

V564.3=51Fp

NWODLLUP

rotsiseRnwodlluPtupnI 15KΩ

TUO

ecnadepmItuptuO5721Ω

rebmuNemaNepyTnoitpircseD

ODD

rewoP.nipylppustuptuO

rewoP.nipylppuseroC

3KLCtupnInwodlluP.tupnikcolcLTTVL/SOMCVL

4DNGrewoP.dnuorgylppusrewoP

50QtuptuO .slevelecafretni

LTTVL/SOMCVL.tuptuokcolcelgniS

61QtuptuO .slevelecafretniLTTVL/SOMCVL.tuptuokcolcelgniS

72QtuptuO .slevelecaf

retniLTTVL/SOMCVL.tuptuokcolcelgniS

83QtuptuO .slevelecafretniLTTVL/SOMCVL.tuptuokcolcelgniS

:ETON

nwodlluP

.seulavlacipytrof,scitsiretcarahCniP,2elbaTeeS.srotsisertupnilanretniotsrefer

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDO = 3.3V±5%, TA = 0°C TO 70°C

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVylppuSeroC 531.33.3564.3V

ODD

egatloVylppuStuptuO 531.33.3564.3V

tnerruCylppuSrewoP 51Am

ODD

tnerruCylppuStuptuO 8Am

TABLE 3B. LVCMOS / LVTTL DC CHARACTERISTICS, VDD = VDDO = 3.3V±5%, TA = 0°C TO 70°C

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVhgiHtupnI 2V

3.0+V

egatloVwoLtupnI 3.0-3.1V

tnerruChgiHtupnIV

V564.3=051Aµ

tnerruCwoLtupnIV

V,V564.3=

V0=5-Aµ

egatloVhgiHtuptuO

1ETONotrefeR6.2V

Am61-=9.2V

Au001-=3 V

egatloVwoLtuptuO

1ETONotrefeR5.0V

Am61=52.0V

Au001=51.0V

05htiwdetanimretstuptuO:1ETON ΩVot

ODD

."tiucriCtseTdaoLtuptuOV3.3",noitceStnemerusaeMretemaraPeeS.2/

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V

DD 4.6V

Inputs, VI-0.5V to VDD + 0.5 V

Outputs, VO-0.5V to VDDO + 0.5V

Package Thermal Impedance, θ

JA 112.7°C/W (0 lfpm)

Storage Temperature, T

STG -65°C to 150°C

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

AC Character-

istics

is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect product reliability.

TABLE 3C. POWER SUPPLY DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = 0°C TO 70°C

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVylppuSeroC 531.33.3564.3V

ODD

egatloVylppuStuptuO 573.25.2526.2V

tnerruCylppuSrewoP 51Am

ODD

tnerruCylppuStuptuO 8Am

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TABLE 4B. AC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = 0°C TO 70°C

TABLE 3D. LVCMOS / LVTTL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = 0°C TO 70°C

TABLE 4A. AC CHARACTERISTICS, VDD = VDDO = 3.3V±5%, TA = 0°C TO 70°C

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

XAM

ycneuqerFtuptuOmumixaM 5.981zHM

1ETON;hgiH-ot-woL,yaleDnoitagaporP ƒ≤zHM6613.27.3sn

f<zHM661 ≤zHM5.98151.255.3sn

)o(ks4,2ETON;wekStuptuOzHM331=ƒ06sp

)pp(ks4,3ETON;wekStraP-ot-traP 005sp

emiTesiRtuptuO%07ot%03052005sp

emiTllaFtuptuO%07ot%03052005sp

cdoelcyCytuDtuptuOf≤zHM5.9810406%

ftaderusaemsretemarapllA

XAM

.esiwrehtodetonsselnu

VmorfderusaeM:1ETON

Vottupniehtfo2/

ODD

.tuptuoehtfo2/

.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON

Vtade

rusaeM

ODD

.2/

segatlovylppusemasehttagnitareposecivedtnereffidnostuptuoneewtebwekssadenifeD:3ETON

derusaemerastup

tuoeht,ecivedhcaenostupnifoepytemasehtgnisU.snoitidnocdaollauqehtiwdna

Vta

ODD

.2/

.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

egatloVhgiHtupnI2V

3.0+V

egatloVwoLtupnI3.0-3.1V

tnerruChgiHtupnIV

V564.3=051Aµ

tnerruCwoLtupnIV

V,V564.3=

V0=5-Aµ

1ETON;egatloVhgiHtuptuO1.2V

1ETON;egatloVwoLtuptuO 5.0V

05htiwdetanimretstuptuO:1ETON ΩVot

ODD

,noitceStnemerusaeMretemaraPeeS.2/

."tiucriCtseTdaoLtuptuOV5.2/V3.3"

lobmySretemaraPsnoitidnoCtseTmuminiMlacipyTmumixaMstinU

XAM

ycneuqerFtuptuOmumixaM 002zHM

1ETON;hgiH-ot-woL,yaleDnoitagaporP ƒ≤zHM6610.23.3sn

f<zHM661 ≤zHM5.9810.24.3sn

)o(ks4,2ETON;wekStuptuOzHM331=ƒ54sp

)pp(ks4,3ETON;wekStraP-ot-traP 005sp

emiTesiRtuptuO%07ot%03052005sp

emiTllaFtuptuO%07ot%03052005sp

cdoelcyCytuDtuptuOf≤zHM5.9810406%

ftaderusaemsretemarapllA

XAM

.esiwrehtodetonsselnu

VmorfderusaeM:1ETON

Vottupniehtfo2/

ODD

.tuptuoehtfo2/

.snoitidnocdaollauqehtiwdnaegatlovylppusemasehttastuptuoneewtebwekssadenifeD:2ETON

Vtade

rusaeM

ODD

.2/

segatlovylppusemasehttagnitareposecivedtnereffidnostuptuoneewtebwekssadenifeD:3ETON

derusaemerastup

tuoeht,ecivedhcaenostupnifoepytemasehtgnisU.snoitidnocdaollauqehtiwdna

Vta

ODD

.2/

.56dradnatSCEDEJhtiwecnadroccanidenifedsiretemarapsihT:4ETON

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

PARAMETER MEASUREMENT INFORMATION

2.5V OUTPUT LOAD AC TEST CIRCUIT3.3V OUTPUT LOAD AC TEST CIRCUIT

SCOPE

LVCMOS

1.65V±5%

GND

SCOPE

LVCMOS

2.05V±5%

-1.25V±5%

OUTPUT SKEW

OUTPUT RISE/FALL TIME OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD

Clock

Outputs

30%

70% 70%

30%

tRtF

sk(o)

sk(pp)

PART 1

PART 2

Q0:Q3

DDO

PROPAGATION DELAY

Pulse Width

tPERIOD

PERIOD

odc =

DDO

Q0:Q3

CLK

VDD,

VDDO

-1.65V±5%

GND

VDD

VDDO

1.25V±5%

PART-TO-PART SKEW

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TRANSISTOR COUNT

The transistor count for ICS8304 is: 416

TABLE 5. θJAVS. AIR FLOW TABLE FOR 8 LEAD SOIC

θθ

θJA by Velocity (Linear Feet per Minute)

0 200 500

Single-Layer PCB, JEDEC Standard Test Boards 153.3°C/W 128.5°C/W 115.5°C/W

Multi-Layer PCB, JEDEC Standard Test Boards 112.7°C/W 103.3°C/W 97.1°C/W

NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.

RELIABILITY INFORMATION

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TABLE 6. PACKAGE DIMENSIONS - SUFFIX M

Reference Document: JEDEC Publication 95, MS-012

PACKAGE OUTLINE - SUFFIX M FOR 8 LEAD SOIC

LOBMYS sretemilliM

NUMINIMMUMIXAM

A53.157.1

1A01.052.0

B33.015.0

C91.052.0

D08.400.5

E08.300.4

eCISAB72.1

H08.502.6

h52.005.0

L04.07

2.1

α°0°8

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TABLE 7. ORDERING INFORMATION

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.

rebmuNredrO/traPgnikraMegakcaPtnuoCerutarepmeT

MA4038SCIMA4038CIOSdael8ebutrep69C°07otC°0

TMA4038SCIMA4038leeRdna

epaTnoCIOSdael80052C°07otC°0

NLMA4038SCINLMA4038"delaennA/eerFdaeL",CIOSdael8ebutrep69C°07otC°0

TNLMA4038SCINL

MA4038 "delaennA/eerFdaeL",CIOSdael8

leeRdnaepaTno 0052C°07otC°0

FLMA4038SCIFLMA4038"eerFdaeL",CIOSdael8ebutr

ep69C°07otC°0

TFLMA4038SCIFLMA4038 "eerFdaeL",CIOSdael8

leeRdnaepaTno 0052C°07otC°0

The aforementioned trademark, HiPerClockS™ is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries.

8304AM www.icst.com/products/hiperclocks.html REV. F SEPTEMBER 13, 2004

Integrated

Circuit

Systems, Inc.

ICS8304

LOW SKEW, 1-TO-4

LVCMOS / LVTTL FANOUT BUFFER

TEEHSYROTSIHNOISIVER

veRelbaTegaPegnahCfonoitpircseDetaD

BA4T

B4T

ptdesiveR•

.niM2ot.niM3.2morfwor)yaleDnoitagaporP(

ptdeteleD•

.wor

.xaM08ot.xaM53morfwor)wekStuptuO()o(kstdesiveR•

.xaM005ot.xaM002morfwor)wekStraP-ot-traP()pp(kstde

siveR•

ot"...zHM661taderusaem..."morfdegnahcetonlareneG•

"...zHM051taderusaem..."

ptdesiveR•

.niM3.2ot.niM6.2morfwor)yaleDnoitagaporP(

ptdeteleD•

.wor

.xaM58ot.xaM53morfwor)wekStuptuO()o(kstdesiveR•

.xaM005ot.xaM002morfwor)wekStraP-ot-traP()pp(kstdesiveR•

ot"...zHM661taderusaem..."morfdegnahcetonlareneG•

"...zHM051taderusaem..."

10/4/21

CA4T

B4T

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4ot.xaMsp08morfwor)o(kstdesiver,elbatCAnI•

.nmulocsnoitidnoCtseTnizHM331=fdeddA

.snoitidnoctsetdeteled,

worcdonI•

fotzHM051degnahc,setonnI•

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.xaMsp06ot.xaMsp08morfwor)o(kstdesiver,elbatCAnI•

.nmulocsnoitidnoCtseTnizHM331=fdeddA

snoitidnoctsetde

teled,worcdonI•

fotzHM051degnahc,setonnI•

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elcyCytuDtuptuOnisnoitidnoctsetdegnahC

.xamzHM5.981ot.xamzHM661degnahc-elbaTCAV3.3

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