NEC Content Addressable Memory Stores Data Without Using Power

Tuesday Jun 14th 2011
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Content addressable memory (CAM) maintains the same high operation speed when processing and storing data on a circuit while power is off.

NEC Corporation (NEC) and Tohoku University announced today the development of the world's first content addressable memory (CAM) that both maintains the same high operation speed and non-volatile operation as existing circuits when processing and storing data on a circuit while power is off.


"NEC's new CAM is a part of spintronics logic integrated circuit technologies that utilize the negative properties of electrons together with the spin magnetic moment. The new CAM utilizes the vertical magnetization of vertical domain wall elements in reaction to magnetic substances in order to enable data that is processing within the CAM to be stored on a circuit without using power. This contrasts to conventional technologies that required data to be stored within memory. As a result, data can be saved on circuits even when power is cut from the CAM.

"In recent years, the use of ICT equipment has steadily increased due to the widespread growth of cloud computing. Most existing equipment requires a short amount of time to get started and internal circuits remain active when the equipment is in standby mode. Therefore, the growing consumption of power by ICT equipment in standby mode has become a serious concern."

Read the Full Story at Nec.co.jp

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