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The quad data rate IV (QDR-IV) memory interface protocol is used for reduced-latency applications. It features two independent bi-directional data channels, each running at double data rate (DDR).
Mentor Graphics’ newest white paper walks PCB designers through several ways to capitalize on the benefits of the DDRx Wizard batch simulation to validate the QDR-IV bus. This PDF is available for download by clicking here.
Andy Shaughnessy, PCB Design007
Sunstone Circuits and SnapEDA recently announced that SnapEDA’s parts library would be integrated into Sunstone’s PCB123 design tool. During PCB West, I interviewed EDA Product Manager Nolan Johnson of Sunstone Circuits and SnapEDA President Natasha Baker. We discussed their new partnership, the changing parts library landscape, and where the companies see this alliance heading in the future.
Scott Jewler, SILICON VALLEY X-RAY
It happens again. A new backbone router/switch build or a line card upgrade is approaching completion when something goes wrong. The system won’t operate at the targeted data rate. Deadlines are looming and the root cause of the problem is buried somewhere in a big rack of electronic components.
Kelly Dack, CID+
PCB Libraries CEO Tom Hausherr and Editor Kelly Dack discuss PCB Libraries’ new BOM Builder service during IPC APEX EXPO. Equipped with the new LEAP technology, the BOM Builder can potentially save PCB designers days or weeks of time normally spent turning a BOM into a CAD library.