8521BYILFT

8521BYILFT Datasheet

The ICS8521I is a low skew, 1-to-9 Differential-

Part	Datasheet
8521BYILFT	8521BYILFT (pdf)

Related Parts	Information
8521BYILF	8521BYILF

PDF Datasheet Preview
DATA SHEET LOW SKEW, BUFFER The ICS8521I is a low skew, 1-to-9 Differential- to-HSTL Fanout Buffer and a member of the HiPerClockS family of High Performance Clock Solutions from ICS. The ICS8521I has two se- lectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The PCLK, nPCLK pair can accept LVPECL, 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 skew, part-to-part skew and crossover voltage characteristics make the ICS8521I ideal for today’s most advanced applications, such as IA64 and static RAMs. • Nine HSTL outputs • Selectable differential CLK, nCLK or LVPECL clock inputs • CLK, nCLK pair can accept the following differential input levels LVPECL, LVDS, HSTL, SSTL, HCSL • PCLK, nPCLK supports the following input types: LVPECL, CML, SSTL • Maximum output frequency 500MHz • Output skew 25ps typical • Part-to-part skew 200ps typical • Propagation delay 1.3ns typical • VOH = 1.4V maximum • 3.3V core, 1.8V output operating supply voltages • -40°C to 85°C ambient operating temperature • Available in both standard and lead-free RoHS compliant packages BLOCK DIAGRAM PIN ASSIGNMENT VDDO nQ2 Q2 nQ1 Q1 nQ0 Q0 VDDO CLK_EN CLK nCLK PCLK nPCLK CLK_SEL 32 31 30 29 28 27 26 25 VDD 1 CLK 2 24 VDDO 23 Q3 nCLK 3 22 nQ3 nQ1 Q2 TABLE ORDERING INFORMATION Part/Order Number Marking Package Shipping Packaging Temperature ICS8521BYI ICS8521BYI 32 Lead LQFP tray -40°C to 85°C ICS8521BYIT ICS8521BYI 32 Lead LQFP 1000 tape & reel -40°C to 85°C ICS8521BYILF ICS8521BYILF 32 Lead "Lead-Free" LQFP tray -40°C to 85°C ICS8521BYILFT ICS8521BYILF 32 Lead "Lead-Free" LQFP 1000 tape & reel -40°C to 85°C NOTE Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. The aforementioned trademark, HiPerClockS is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries. 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 and industrial applications. Any other applications such as those requiring 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. 8521BYI 14 IDT / ICS LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-HSTL FANOUT BUFFER ICS8521I IICCSS889155178234209158231-BI08F12 TTSSDD Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support 408-284-8200 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S. Asia Pacific and Japan Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505 Europe IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339

PDF Datasheet Preview

DATA SHEET

LOW SKEW, BUFFER

The ICS8521I is a low skew, 1-to-9 Differential-
to-HSTL Fanout Buffer and a member of the

HiPerClockS family of High Performance Clock

Solutions from ICS. The ICS8521I has two se-
lectable clock inputs. The CLK, nCLK pair can
accept most standard differential input levels. The PCLK,
nPCLK pair can accept LVPECL, 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 skew, part-to-part skew and crossover voltage characteristics make the ICS8521I ideal for today’s most advanced applications, such as IA64 and static RAMs.
• Nine HSTL outputs
• Selectable differential CLK, nCLK or LVPECL clock inputs
• CLK, nCLK pair can accept the following differential
input levels LVPECL, LVDS, HSTL, SSTL, HCSL
• PCLK, nPCLK supports the following input types:

LVPECL, CML, SSTL
• Maximum output frequency 500MHz
• Output skew 25ps typical
• Part-to-part skew 200ps typical
• Propagation delay 1.3ns typical
• VOH = 1.4V maximum
• 3.3V core, 1.8V output operating supply voltages
• -40°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS compliant packages

BLOCK DIAGRAM

PIN ASSIGNMENT

VDDO nQ2

Q2 nQ1

Q1 nQ0

Q0 VDDO

CLK_EN

CLK nCLK

PCLK nPCLK

CLK_SEL
32 31 30 29 28 27 26 25

VDD 1

CLK 2
24 VDDO 23 Q3
nCLK 3
22 nQ3
nQ1 Q2
TABLE ORDERING INFORMATION

Part/Order Number

Marking

Package

Shipping Packaging Temperature

ICS8521BYI

ICS8521BYI
32 Lead LQFP
tray
-40°C to 85°C

ICS8521BYIT

ICS8521BYI
32 Lead LQFP
1000 tape & reel -40°C to 85°C

ICS8521BYILF

ICS8521BYILF
32 Lead "Lead-Free" LQFP
tray
-40°C to 85°C

ICS8521BYILFT

ICS8521BYILF
32 Lead "Lead-Free" LQFP 1000 tape & reel -40°C to 85°C

NOTE Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant.

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

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 and industrial applications. Any other applications such as those requiring 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.
8521BYI
14 IDT / ICS LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-HSTL FANOUT BUFFER

ICS8521I

IICCSS889155178234209158231-BI08F12

TTSSDD

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support
408-284-8200

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S.

Asia Pacific and Japan

Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

Europe

IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 8521BYILFT Datasheet file may be downloaded here without warranties.

Datasheet ID: 8521BYILFT 637142