VME to PCI Bridge

The CA91C142D (Universe II) is the industry's leading high-performance PCI to VME interconnect. It is fully compliant with the VME64 bus standard, and is tailored to support advanced PCI processors and peripherals. With a zero wait state implementation for write transactions, and the capability to support pre-fetch reads and multi-beat transactions, the Universe II provides high performance utilization of the PCI bus.

The Universe II eases development of VMEbus systems by providing direct connection to a local PCI bus. The device is ideally suited for CPU or peripheral boards functioning as both master and slave in the VMEbus system. Bridging is accomplished through a decoupled architecture with independent FIFOs for inbound (VME to PCI), outbound (PCI to VME), and DMA traffic. With this architecture, throughput is maximized without sacrificing bandwidth on either bus.

Designing with the Universe II eases the development of VME Single Board Computers (SBCs) and I/O peripherals targeting the military, aerospace, industrial automation and medical markets.


  • High performance 64-bit VME to PCI bus interconnect
  • Industry-proven, reliable PCI to VME bridge
  • Fully compliant, 32 or 64-bit, 33 MHz PCI bus interconnect
  • Integral FIFOs for write posting to maximize bandwidth utilization
  • Programmable DMA controller with Linked-List mode
  • Flexible interrupt logic
  • Automatic initialization for VME slave-only applications
  • Extensive suite of VMEbus address and data transfer modes
  • Register set programmable from both the PCI and VME64 buses
  • Full VMEbus system controller functionality
  • Sustained transfer rates of up to 60-70 Mbytes/s
  • Support for RMWs, ADOH, PCI LOCK cycles, and semaphores
  • Location monitors for broadcasting interrupts and message passing
  • Commercial, industrial, and extended temperature variants
  • IEEE 1149.1 JTAG 

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
CA91C142D-25EE Active BG313 PBGA 313 E No Tray
CA91C142D-33CE Active BG313 PBGA 313 C No Tray
CA91C142D-33CEV Active BGG313 PBGA 313 C Yes Tray
CA91C142D-33IE Active BG313 PBGA 313 I No Tray
CA91C142D-33IEV Active BGG313 PBGA 313 I Yes Tray


タイトル 他の言語 タイプ フォーマット ファイルサイズ 日付
Universe IID/B User Manual Manual PDF 1.83 MB 6月 27, 2013
Tsi148/Universe II Differences Application Note Application Note PDF 77 KB 9月 25, 2014
Universe IID Debug and Initialization Notes Application Note PDF 84 KB 10月 14, 2009
PCN# : A1604-02 Ink Mark to Laser Mark Product Change Notice PDF 128 KB 5月 1, 2016
PCN# : A1412-02 Change of Mold Compound Material Product Change Notice PDF 23 KB 12月 22, 2014
Universe IID/B Device Differences Misc PDF 40 KB 10月 15, 2009
Universe IID-B Device Errata and Design Notes Device Errata PDF 64 KB 10月 14, 2009
Universe IID VME to PCI Bridge Product Brief PDF 81 KB 8月 31, 2009
Universe II IBIS Model Model - IBIS ZIP 37 KB 9月 3, 2014
Universe IID BSDL File Model - BSDL ZIP 8 KB 3月 5, 2013


タイトル 他の言語 タイプ フォーマット ファイルサイズ 日付
Universe II IBIS Model Model - IBIS ZIP 37 KB 9月 3, 2014
Universe IID BSDL File Model - BSDL ZIP 8 KB 3月 5, 2013