ICS621MIT

ICS621MIT Datasheet

ICS621

Part	Datasheet
ICS621MIT	ICS621MIT (pdf)

Related Parts	Information
ICS621MI	ICS621MI

PDF Datasheet Preview
LOW SKEW 1 TO 4 CLOCK BUFFER DATASHEET ICS621 The ICS621 is a low skew, single input to four output, clock buffer. The device operates from a single to volt supply and has a volt tolerant input, making it ideal for level translation. IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact us for all of your clocking needs. • Low skew outputs 150 ps • Packaged in 8-pin SOIC or 8-pin DFN 2x2mm • Available in RoHS 5 or RoHS 6 lead-free package • Low power CMOS technology • Operating voltages of V to V • Output Enable pin tri-states outputs • V tolerant input clock • Industrial or commercial temperature ranges NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram ICLK Q0 Q1 Q2 Q3 Output Enable IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER ICS621 ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER Pin Assignment 8-pin SOIC ICLK FAN OUT BUFFER Pin Assignment 8-pin DFN ICLK 1 Q1 Q2 Q3 4 8 OE VDD GND Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 Pin Name ICLK Q1 Q2 Q3 Q4 GND VDD OE Pin Type Input Output Power Input Pin Description Clock Input. V tolerant input. Clock Output Clock Output Clock Output Clock Output Connect to ground. Connect to V or V. Output Enable. Tri-states outputs when low. Connect to VDD for normal operation. External Components A minimum number of external components are required for proper operation. A decoupling capacitor of µF should be connected between VDD on pin 7 and GND on pin 6, as close to the device as possible. A 33 series terminating resistor may be used on each clock output if the trace is longer than 1 inch. To achieve the low output skew that the ICS621 is capable of, careful attention must be paid to board layout. Essentially, all four outputs must have identical terminations, identical loads and identical trace geometries. If they do not, the output skew will be degraded. For example, using a series termination on one output with on the others will cause at least 15 ps of skew. IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER ICS621 ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER FAN OUT BUFFER Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS621. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. Item Supply Voltage, VDD Output Enable and All Outputs ICLK Ambient Operating Temperature industrial Ambient Operating Temperature commercial Storage Temperature Junction Temperature Soldering Temperature Rating Ordering Information Part / Order Number 621MI* 621MIT* 621MILF 621MILFT 621M* 621MT* 621MLF 621MLFT 621NLFT 621NILFT Marking ICS621MI 621MILF ICS621M 621MLF 621NLF 621NILF Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tape and Reel Tape and Reel Package 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin DFN 8-pin DFN Temperature -40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C -40 to +85° C *NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER ICS621 ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER FAN OUT BUFFER Originator S. Sharma S. Sharma R.Willner Date Description of Change 06/08/06 New device/datasheet Preliminary release. 03/09/07 Removed Tape and Reel part number from DFN package ordering info. 05/27/08 Removed “Preliminary” and updated part ordering info. 08/01/08 Correct VIH values to reflect V tolerant clock input 10/27/09 Added EOL note for non-green parts IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER ICS621 ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER FAN OUT BUFFER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support Corporate Headquarters Integrated Device Technology, Inc. 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

PDF Datasheet Preview

LOW SKEW 1 TO 4 CLOCK BUFFER

DATASHEET

ICS621

The ICS621 is a low skew, single input to four output, clock buffer. The device operates from a single to volt supply and has a volt tolerant input, making it ideal for level translation.

IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact us for all of your clocking needs.
• Low skew outputs 150 ps
• Packaged in 8-pin SOIC or 8-pin DFN 2x2mm
• Available in RoHS 5 or RoHS 6 lead-free package
• Low power CMOS technology
• Operating voltages of V to V
• Output Enable pin tri-states outputs
• V tolerant input clock
• Industrial or commercial temperature ranges

NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Block Diagram

ICLK

Q0 Q1 Q2 Q3

Output Enable

IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER

ICS621

ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER

Pin Assignment 8-pin SOIC

ICLK

FAN OUT BUFFER

Pin Assignment 8-pin DFN

ICLK 1 Q1 Q2 Q3 4
8 OE VDD GND

Pin Descriptions

Pin Number
1 2 3 4 5 6 7 8

Pin Name

ICLK Q1 Q2 Q3 Q4 GND VDD OE

Pin Type

Input Output Power Input

Pin Description

Clock Input. V tolerant input. Clock Output Clock Output Clock Output Clock Output Connect to ground. Connect to V or V. Output Enable. Tri-states outputs when low. Connect to VDD for normal operation.

External Components

A minimum number of external components are required for proper operation. A decoupling capacitor of µF should be connected between VDD on pin 7 and GND on pin 6, as close to the device as possible. A 33 series terminating resistor may be used on each clock output if the trace is longer than 1 inch.

To achieve the low output skew that the ICS621 is capable of, careful attention must be paid to board layout. Essentially, all four outputs must have identical terminations, identical loads and identical trace geometries. If they do not, the output skew will be degraded. For example, using a series termination on one output with on the others will cause at least 15 ps of skew.

IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER

ICS621

ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER

FAN OUT BUFFER

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the ICS621. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range.

Item

Supply Voltage, VDD Output Enable and All Outputs ICLK Ambient Operating Temperature industrial Ambient Operating Temperature commercial Storage Temperature Junction Temperature Soldering Temperature

Rating
Ordering Information

Part / Order Number
621MI* 621MIT* 621MILF 621MILFT 621M* 621MT* 621MLF 621MLFT 621NLFT 621NILFT

Marking

ICS621MI 621MILF ICS621M 621MLF 621NLF 621NILF

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel Tape and Reel Tape and Reel

Package
8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin DFN 8-pin DFN

Temperature
-40 to +85° C -40 to +85° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C -40 to +85° C
*NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant.

While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT 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 IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.

IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER

ICS621

ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER

FAN OUT BUFFER

Originator S. Sharma S. Sharma

R.Willner
Date Description of Change 06/08/06 New device/datasheet Preliminary release. 03/09/07 Removed Tape and Reel part number from DFN package ordering info. 05/27/08 Removed “Preliminary” and updated part ordering info. 08/01/08 Correct VIH values to reflect V tolerant clock input 10/27/09 Added EOL note for non-green parts

IDT / ICS LOW SKEW 1 TO 4 CLOCK BUFFER

ICS621

ICS621 LOW SKEW 1 TO 4 CLOCK BUFFER

FAN OUT BUFFER

Innovate with IDT and accelerate your future networks. Contact:

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

For Tech Support

Corporate Headquarters

Integrated Device Technology, Inc.
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

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 ICS621MIT Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS621MIT 637031