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来源:LM317 Electronics Components编辑:B&K Precision时间:2021-06-14 04:56:59

Ist der Kabelplan für das Fahrzeug komplett, so kann man daraus die Leitungs- und Steckerpläne für die einzelnen Abschnitte des gesamten Fahrzeug-Kabelbaums generieren. Außerdem ermöglicht das Werkzeug eine Ausgabe von ASCII-Daten mit Teilenummer-Bezeichnungen für das gesamte System oder für Systemkomponenten, also für Stecker oder Leitungen.

Meanwhile, in a move to keep up with current and future chip demand, Tokyo-based Renesas plans to more than double its production capacity within its 300-mm wafer fab over the next year, the company said on Wednesday.

Renesas–a joint chip venture between Hitachi Ltd. and Mitsubishi Electric Corp.–has also moved into 90-nm pilot production within its 300-mm fab unit in Japan, dubbed Trecenti Technologies Inc. Renesas is also accelerating its 65-nm process development, with plans to move the technology into volume production by 2006 (see June 23 story).

KNP2WSJR-73-4R3_Yageo

Other Japanese chip makers are aggressive as well. For example, Toshiba Corp. plans to sample chips based on its 65-nm process in the first half of 2005.

In comparison, TSMC is expected to enter into full production” at the 90-nm node by year's end. For some time, TSMC has been in what the company calls risk production”–or early production–at the 90-nm node.

The Taiwanese company has very aggressive” plans with its 65-nm process. It has begun to engage” with foundry customers with the process, with plans to sample in 1H 2005. Real volumes are expected to hit the street in the 2006 time frame — if not earlier.

KNP2WSJR-73-4R3_Yageo

CAMBRIDGE, England — Alphamosaic has received test silicon for a second generation of its VideoCore application-specific processor architecture, a version which supports additional instructions and triples performance while reducing power, the company said Thursday (June 24).

Alphamosaic announced the original VideoCore, based on a homegrown RISC processor coupled to a 16-element vector processing unit targeting video applications, in May 2001. Its first product, the VC01, was introduced in November 2002.

KNP2WSJR-73-4R3_Yageo

The VC01 has been adopted as a multimedia processor by Samsung Electronics Co. Ltd. and others in mobile phone and portable multimedia product designs.

Application experience Alphamosaic gained with Samsung and others has led to extension of the VideoCore architecture in the form of the VideoCoreII, said Robert Swann, vice president of marketing.

If we assume same program time for NAND (150 minutes), energy consumption for Nand will be 22 percent that for NOR since Nand program current is 8 mA, versus NOR's 36 mA. This would yield a Nand energy consumption of approximately 22 mA-hr. However, algorithm developers can reduce this further by buffering up compressed video in DRAM for deferred ultra-fast storate to Nand. By doing this, program time for storing 150 min of video (1.4 Gbytes) approaches that achieved if one were writing to Nand at 4 Mbytes/s.

Since the video bit rate is so low, energy consumed buffering up compressed video in DRAM is a function of self-refresh current (approximately 0.15 mA)]. Compared with the current consumed during Nand program operation (8 mA), it becomes clear that in the battle against time, buffering in DRAM has a tremendous advantage.

The equations below are used to determine energy consumption for Nand devices and DRAM devices with the assumption that system program time approaches that calculated using a 4-Mbyte/s Nand device.

mA-hr512 Mbit_Nand = (10) x (8 mA) x (37 seconds)/3,600 = 0.82 mA-hr

mA-hr256 Mbit_DRAM = (10) x (0.15 mA) x (900)/3,600 = 0.375 mA-hr

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