( ESNUG 276 Item 8 ) ----------------------------------------------- [1/7/97]
From: plaberge@micronpc.com (Paul A. LaBerge )
Subject: Seeking User's Views On Off-The-Shelf Standard ASIC Libraries
Hi John,
I'm fishing for information, horror stories, and user insights concerning
off-the-shelf standard cell ASIC libraries. (In particular, but not limited
to, how they work with Synopsys synthesis.)
John, I know it's your philosophy that each question in ESNUG should teach
something while it asks for something, so, here's what I know of these libs.
Compass:
Seems like these guys invented portable libraries with the introduction
of passport libraries. I liked the technology and they had quite a few
foundries signed up. Their future seems uncertain. They were losing
money and I think bought up (mentor?). I like having the option of
either high performance or high density standard cells available (don't
know if you can mix and match). Didn't see any PCI or GTL+ IOs. Lots
of gates, data path elements, and SRAM compiler.
Aspec:
They are taking it one step further with quickport for porting to new
processes (although unproven). Good I/O cells and memory. A little
behind needing 0.25um technology (estimated soon).
Virtual Silicon Technology:
Good packing density. Quick DRC migration for quick cross-foundry
optimization.
Artisan Components:
Good SRAM compilers? (Don't know. Does anyone else know?)
In-Chip:
Supposed to have good routing technology. (Does anyone know?)
Synopsys Silicon Architects:
I'm always a cynical when it comes to anything from Synopsys. Seems
like there should be some advantages to library and synthesis from the
same company. (Is anyone actually using CBA?)
Cascade:
Seems very similar to Compass. SRAM compilers etc. Looks like good
technology, but I'm not sure how many foundries they support.
Also, which is most used in the industry? Other comments? Does anyone know
of a website, paper, or information comparing pros & cons of these libraries?
Who really owns the market in these types of libraries?
- Paul A. LaBerge
Micron Electronics Inc.
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