ICS651MI

ICS651MI Datasheet

ICS651

Part	Datasheet
ICS651MI	ICS651MI (pdf)

Related Parts	Information
ICS651MIT	ICS651MIT

PDF Datasheet Preview
ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER The ICS651 is a low skew, single input to four output, clock buffer. Part of ICS’ ClockBlocksTM family, this is a low skew, small clock buffer. ICS 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 250 ps • Packaged in 8-pin SOIC • Available in Pb lead free package • Low power CMOS technology • Operating Voltages of V to V • Output Enable pin tri-states outputs • V tolerant input clock • Industrial temperature range Block Diagram ICLK Q0 Q1 Q2 Q3 Output Enable MDS 651 C Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ● Pin Assignment ICLK ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER 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 ICS651 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. MDS 651 C Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ● ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS651. These ratings, which are standard values for ICS 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 Storage Temperature Junction Temperature Soldering Temperature Rating 7V V to VDD+0.5 V to V VDD > 0V -40 to +85 °C -65 to +150°C 125°C 260°C Recommended Operation Conditions Parameter Ambient Operating Temperature Power Supply Voltage measured in respect to GND Min. Typ. Max. Ordering Information Part / Order Number Marking ICS651MI ICS651MI ICS651MIT ICS651MI ICS651MILF 651MILF ICS651MILFT 651MILF SEATING PLANE Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Package 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC Temperature -40 to +85°C -40 to +85°C -40 to +85°C -40 to +85°C 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 Circuit Systems ICS 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. MDS 651 C Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ● ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER Originator K. Beckmeyer K. Beckmeyer K. Beckmeyer Date Description of Change 6/27/05 Preliminary Datasheet 8/31/05 Output high and low voltage current conditions changed to 6mA and 6mA respectively at 1.8V, and -8mA and 8mA respectively at 2.5V operation. Short circuit current spec changed to ±50mA typical at 2.5V operation. Output-to-output skew max spec changed to ±250ps at both 1.8V and 2.5V operation. 12/08/05 Added LF ordering info. MDS 651 C Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ●

PDF Datasheet Preview

ICS651

LOW SKEW 1 TO 4 CLOCK BUFFER

The ICS651 is a low skew, single input to four output, clock buffer. Part of ICS’ ClockBlocksTM family, this is a low skew, small clock buffer.

ICS 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 250 ps
• Packaged in 8-pin SOIC
• Available in Pb lead free package
• Low power CMOS technology
• Operating Voltages of V to V
• Output Enable pin tri-states outputs
• V tolerant input clock
• Industrial temperature range

Block Diagram

ICLK

Q0 Q1 Q2 Q3

Output Enable

MDS 651 C

Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ●

Pin Assignment

ICLK

ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER

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 ICS651 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.

MDS 651 C

Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ●

ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER

Absolute Maximum Ratings

Stresses above the ratings listed below can cause permanent damage to the ICS651. These ratings, which are standard values for ICS 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 Storage Temperature Junction Temperature Soldering Temperature

Rating
7V V to VDD+0.5 V to V VDD > 0V -40 to +85 °C -65 to +150°C 125°C 260°C

Recommended Operation Conditions

Parameter

Ambient Operating Temperature Power Supply Voltage measured in respect to GND

Min.

Typ.

Max.
Ordering Information

Part / Order Number

Marking

ICS651MI

ICS651MI

ICS651MIT

ICS651MI

ICS651MILF
651MILF

ICS651MILFT
651MILF

SEATING PLANE

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

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

Temperature
-40 to +85°C -40 to +85°C -40 to +85°C -40 to +85°C

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 Circuit Systems ICS 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.

MDS 651 C

Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ●

ICS651 LOW SKEW 1 TO 4 CLOCK BUFFER

Originator K. Beckmeyer K. Beckmeyer

K. Beckmeyer

Date Description of Change
6/27/05 Preliminary Datasheet
8/31/05

Output high and low voltage current conditions changed to 6mA and 6mA respectively at 1.8V, and -8mA and 8mA respectively at 2.5V operation. Short circuit current spec changed to ±50mA typical at 2.5V operation. Output-to-output skew max spec changed to ±250ps at both 1.8V and 2.5V operation.
12/08/05 Added LF ordering info.

MDS 651 C

Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel 408 297-1201 ●

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 ICS651MI Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS651MI 637044