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飞思卡尔S12的低功耗管理

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Low power consumption is an important consideration in a wide range of
applications. This is even a critical parameter in automotive applications in
order to prevent high battery discharge rates and conserve the battery charge
between vehicle starts (recharge cycles).
Car manufacturers expect that a car can still start after six weeks in “sleep
mode”. Therefore each Electronic Control Unit, depending on its functionality,
has its own low-power requirements. As a consequence of the increase of
electronic contents into the car, quiescent current specifications become
harder and harder to achieve. Automotive OEMs (original equipment
manufacturers) require power consumption profiles that can hardly be met
using “standard”, non-integrated devices.

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