Low Voltage 1:18 Clock Distribution Chip

NOTICE - The following device(s) are recommended alternatives:

The MPC940L is a 1:18 low voltage clock distribution chip with 2.5 V or 3.3 V LVCMOS output capabilities. The device features the capability to select either a differential LVPECL or an LVCMOS compatible input. The 18 outputs are 2.5 V or 3.3 V LVCMOS compatible and feature the drive strength to drive 50 ? series or parallel terminated transmission lines. With output-to-output skews of 150 ps, the MPC940L is ideal as a clock distribution chip for the most demanding of synchronous systems. The 2.5 V outputs also make the device ideal for supplying clocks for a high performance microprocessor based design. For a similar device at a lower price/performance point, the reader is referred to the MPC9109.

Features

  • LVPECL or LVCMOS Clock Input
  • 2.5 V LVCMOS Outputs for Pentium II Microprocessor Support
  • 150 ps Maximum Output-to-Output Skew
  • Maximum Output Frequency of 250 MHz
  • 32-Lead LQFP Packaging
  • 32-Lead Pb-Free Package Available
  • Dual or Single Supply Device:
  • Dual VCC Supply Voltage, 3.3 V Core and 2.5 V Output
  • Single 3.3 V VCC Supply Voltage for 3.3 V Outputs
  • Single 2.5 V VCC Supply Voltage for 2.5 V I/O

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
MPC940LAC Obsolete PRG32 TQFP 32 C Yes Tray Availability
MPC940LACR2 Obsolete PRG32 TQFP 32 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
MPC940L Datasheet - Datasheet PDF 188 KB Oct 3, 2016
Application Notes & White Papers
AN-828 Termination - LVPECL - Application Note PDF 229 KB Jul 5, 2016
AN-835 Differential Input with VCMR being VIH Referenced - Application Note PDF 77 KB May 10, 2014
AN-815 Understanding Jitter Units - Application Note PDF 476 KB Apr 23, 2014
AN-845 Termination - LVCMOS - Application Note PDF 62 KB May 12, 2014
AN-844 Termination - AC Coupling Clock Receivers - Application Note PDF 82 KB May 12, 2014
AN-842 Thermal Considerations in Package Design and Selection - Application Note PDF 403 KB May 11, 2014
AN-840 Jitter Specifications for Timing Signals - Application Note PDF 349 KB May 7, 2014
AN-836 Differential Input to Accept Single-ended Levels - Application Note PDF 37 KB May 5, 2014
AN-834 Hot-Swap Recommendations - Application Note PDF 67 KB May 5, 2014
AN-833 Differential Input Self Oscillation Prevention - Application Note PDF 94 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter - Application Note PDF 1.06 MB Apr 23, 2014
AN-805 Recommended Ferrite Beads - Application Note PDF 38 KB Jan 14, 2014
PCNs & PDNs
PDN# : CQ-15-02 Quarter PDN for Manufacturing Discontinuance - Product Discontinuation Notice PDF 535 KB May 4, 2015
PCN# : A1401-02 Alternate Copper Wire Assembly Site - Product Change Notice PDF 36 KB Feb 15, 2014
PDN# : N-12-48R2 PRODUCT DISCONTINUANCE NOTICE - Product Discontinuation Notice PDF 138 KB Jun 13, 2013
PDN# : N-12-22R2 PRODUCT DISCONTINUANCE NOTICE - Product Discontinuation Notice PDF 363 KB Jun 13, 2013
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48 - Product Change Notice PDF 472 KB Mar 30, 2013
PDN# : N-12-22R1 PRODUCT DISCONTINUANCE NOTICE - Product Discontinuation Notice PDF 209 KB Feb 27, 2013
PDN# : N-12-48 PRODUCT DISCONTINUANCE NOTICE - Product Discontinuation Notice PDF 93 KB Dec 20, 2012
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP - Product Change Notice PDF 252 KB Oct 18, 2006
Other
The IDT Communications Products Advantage - Overview PDF 2.54 MB Feb 13, 2017
The IDT Consumer Products Advantage - Overview PDF 6.67 MB Jan 27, 2017
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
The IDT Automotive Advantage - Overview PDF 5.67 MB Jan 18, 2017
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016

Software & Tools

Title Other Languages Type Format File Size Date
MPC940L IBIS Model - Model - IBIS ZIP 6 KB Oct 10, 2007