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Energy efficient i.MX7 chips from Freescale

29.06.2015

Freescale announced the i.MX 7Solo and i.MX 7Dual processors for use in wearables, IoT devices and other low power devices.

Both products are based on the ARM Cortex-A7 architecture. At the same time, the i.MX 7Solo model contains one computing core, and the i.MX 7Dual modification contains two. The clock frequency reaches 1 GHz. The chips also include an auxiliary core Cortex-M4, operating at a frequency of 266 MHz.

The processors are manufactured using 28nm technology. Freescale pays particular attention to high energy efficiency. So, in the Low Power State Retention (LPSR) mode, the power consumption is only 250 microwatts.

The chips support eMMC5.0 and Low Power DDR3 memory. PCIe and Dual Gigabit Ethernet interfaces are mentioned.

Mass deliveries of products i.MX 7Solo and i.MX 7Dual are planned to be organized in November this year.

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Quantum display for mobile devices 24.12.2013

Developers from Apple claim that the new technology interspersed with "quantum dots" in the display of mobile devices will make it possible to significantly improve their color reproduction.

The patent application filed by Apple describes the so-called. "quantum display", that is, a display for iPad, iPhone and other mobile devices interspersed with so-called "quantum dots" - nanocrystals, the size of which corresponds to a biological virus particle. The US Patent and Trademark Office has published the text of the application.

"Quantum dots" can be created from different semiconductor materials, for example, cadmium selenide. In this case, it is necessary to observe the condition that the size of the elements is inversely proportional to the wavelength of the light wave. That is, a smaller inclusion will emit light closer to the violet part of the spectrum, and a larger one closer to the red part. By manipulating the size of these particles in the production of a display, it is possible to achieve different shades of color while maintaining a high degree of accuracy.

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Apple's technology also has environmental and economic benefits. The display with nano-incrustations is quite cheap and easy to manufacture. At the same time, its production is considered safer from the point of view of protecting the environment, since it excludes the use of harmful substances.

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