83940AY-02LF

83940AY-02LF Datasheet

ICS83940-02

Part	Datasheet
83940AY-02LF	83940AY-02LF (pdf)

Related Parts	Information
83940AY-02LFT	83940AY-02LFT

PDF Datasheet Preview
ICS83940-02 LOW SKEW, 1-TO-18 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER The ICS83940-02 is a low skew, 1-to-18 Fanout Buffer and a member of the HiPerClockS HiPerClockS family of High Performance Clock Solutions from ICS. The 83940-02 has two selectable clock in- puts. The CLK0, nCLK0 pair can accept most standard differential input levels. The single ended clock in- put accepts LVCMOS or LVTTL input levels.The low imped- ance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased from 18 to 36 by utilizing the ability of the outputs to drive two series terminated lines. The ICS83940-02 is characterized at full 3.3V, full 2.5V and mixed 3.3V input and 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS83940 ideal for those clock distribution applications demanding well defined performance and repeatability. • 18 LVCMOS/LVTTL outputs, 7Ω typical output impedance • Selectable LVCMOS_Clock or CLK0, nCLK0 input pair • LVCMOS_CLK supports the following input types LVCMOS or LVTTL • CLK0, nCLK0 pair can accept the following differential input levels LVPECL, LVDS, LVHSTL, SSTL, HCSL • Maximum output frequency 200MHz • Output skew 120ps maximum • Part-to-part skew 850ps maximum • Output supply modes Core/Output 3.3V/3.3V 3.3V/2.5V 2.5V/2.5V • 0°C to 70°C ambient operating temperature • Industrial temperature information available upon request • Pin compatible with the MPC940L in single supply applications BLOCK DIAGRAM CLK_SEL CLK0 nCLK0 LVCMOS_CLK 83940AY-02 PIN ASSIGNMENT GND Q5 Q4 Q3 VDDO Q2 Q1 Q0 Q0:Q17 GND LVCMOS_CLK CLK_SEL CLK nCLK VDD VDDO 32 31 30 29 28 27 26 25 4 ICS83940-02 21 9 10 11 12 13 14 15 16 TABLE ORDERING INFORMATION Part/Order Number Marking Package Count Temperature ICS83940AY-02 ICS83940AY-02 32 Lead LQFP tray 0°C to 70°C ICS83940AY-02T ICS83940AY-02 32 Lead LQFP 1000 Tape and Reel 0°C to 70°C ICS83940AY-02LF ICS3940AY02L 32 Lead LQFP Lead Free tray 0°C to 70°C ICS83940AY-02LFT ICS3940AY02L 32 Lead LQFP Lead Free 1000 Tape and Reel 0°C to 70°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 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. 83940AY-02 ICS83940-02 LOW SKEW, 1-TO-18 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER Description of Change 13 Ordering Information Table - Added Lead Free Marking and Note Date 7-30-07 83940AY-02

PDF Datasheet Preview

ICS83940-02

LOW SKEW, 1-TO-18 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER

The ICS83940-02 is a low skew, 1-to-18 Fanout

Buffer and a member of the HiPerClockS

HiPerClockS family of High Performance Clock Solutions from

ICS. The 83940-02 has two selectable clock in-
puts. The CLK0, nCLK0 pair can accept most
standard differential input levels. The single ended clock in-
put accepts LVCMOS or LVTTL input levels.The low imped-
ance LVCMOS/LVTTL outputs are designed to drive 50Ω
series or parallel terminated transmission lines. The effective
fanout can be increased from 18 to 36 by utilizing the ability
of the outputs to drive two series terminated lines.

The ICS83940-02 is characterized at full 3.3V, full 2.5V and mixed 3.3V input and 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS83940 ideal for those clock distribution applications demanding well defined performance and repeatability.
• 18 LVCMOS/LVTTL outputs, 7Ω typical output impedance
• Selectable LVCMOS_Clock or CLK0, nCLK0 input pair
• LVCMOS_CLK supports the following input types LVCMOS or LVTTL
• CLK0, nCLK0 pair can accept the following differential input levels LVPECL, LVDS, LVHSTL, SSTL, HCSL
• Maximum output frequency 200MHz
• Output skew 120ps maximum
• Part-to-part skew 850ps maximum
• Output supply modes Core/Output 3.3V/3.3V 3.3V/2.5V 2.5V/2.5V
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
• Pin compatible with the MPC940L in single supply applications

BLOCK DIAGRAM

CLK_SEL

CLK0
nCLK0

LVCMOS_CLK
83940AY-02

PIN ASSIGNMENT

GND Q5 Q4 Q3

VDDO Q2 Q1 Q0

Q0:Q17

GND LVCMOS_CLK CLK_SEL

CLK nCLK

VDD VDDO
32 31 30 29 28 27 26 25
4 ICS83940-02 21
9 10 11 12 13 14 15 16
TABLE ORDERING INFORMATION

Part/Order Number

Marking

Package

Count

Temperature

ICS83940AY-02

ICS83940AY-02
32 Lead LQFP
tray
0°C to 70°C

ICS83940AY-02T

ICS83940AY-02
32 Lead LQFP
1000 Tape and Reel 0°C to 70°C

ICS83940AY-02LF

ICS3940AY02L
32 Lead LQFP Lead Free
tray
0°C to 70°C

ICS83940AY-02LFT

ICS3940AY02L
32 Lead LQFP Lead Free 1000 Tape and Reel 0°C to 70°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 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.
83940AY-02

ICS83940-02

LOW SKEW, 1-TO-18 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER

Description of Change
13 Ordering Information Table - Added Lead Free Marking and Note

Date 7-30-07
83940AY-02

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 83940AY-02LF Datasheet file may be downloaded here without warranties.

Datasheet ID: 83940AY-02LF 637079