The C8051F9xx product family is the industry’s first MCU family capable of operating down to 0.9 V and up to 3.6 V, enabling single-cell battery operation as well as dramatically increasing battery life for dual-cell applications.
Maximize Battery Life
The C8051F9xx family is optimized to maximize power efficiency by enabling an ultra-low current sleep mode, a fast wake-up time, a fast settling time to support analog measurements, and a low active current mode, resulting in maximum battery life.
One-Cell Mode: DC-DC Converter Advantage
When the C8051F9xx is operating in single-cell mode, a high-efficiency inductor-based dc-dc converter is used to boost the battery voltage. The highly integrated converter needs only an external 0.68 H inductor, plus decoupling capacitors on the VBAT and VDD pins. The converter’s output voltage is programmable from 1.8 to 3.3 V in several discrete steps and is capable of supplying a total power of 65 mW for both internal MCU use and to drive external components such as LEDs, sensors or transceivers to create a true single-cell system solution.
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