Updated Stratix II Power Specs & Explanation

Paul Leventis · 2005-02-14T21:02:58+00:00

Hi,Today we released our updated power specs for Stratix II. Somehighlights of the updates found in the Stratix II Early Power EstimatorV2.1 tool:(1) Reduced static power by up to 47%. We've measured many units fromacross the product family, and have the data to tighten the speccompared to our previous conservative/estimated values. The amount ofchange varies from family member to family member, and is a function ofjunction temperature and whether typical or worst-case silicon isselected.(2) Static current on the VccPD rail now reflected (it is tiny)(3) There is no more in-rush Icc current. The previous currentreflected a result measured on early units from one family member plussome excessive guard-bands. The underlying cause was rectified and allStratix II devices now exhibit a monotonic ramp for Icc and no in-rush.(4) We previously reported around 100 mA of static power per used MRAMin the chip. This turns out to have been a measurement error and nowthere is no added static power.See details on the updates and where to get the EPE. Quartus 5.0 willreflect these updated specs when it is released in Q2.Paul LeventisAltera Corp.

Feb 14, 2005 40 Replies

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austin 21 years ago

Paul,

To save you the embarrasment, I sent my reply to you directly.

Aust>>I am sorry, but you have never run a spice simulation of midox pass

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Updated Stratix II Power Specs & Explanation

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