Ultra Low-Power Microcontrollers
The C8051F9xx ultra low-power microcontroller (MCU) product family has been designed from the ground up to offer the most power-efficient MCUs in the industry. The end result is an MCU solution that has been optimized to be the industry’s best across all metrics necessary to be truly considered “low power”: active mode, sleep mode and wake-up time.
- The F9xx series has the industry’s lowest active mode current consumption which saves power when the application is running. As low as 150 µA/MHz.
- The F9xx series has the industry’s lowest current consumption in sleep modes, which is often the most common mode in many battery-powered applications. As low as 10 nA.
- Since an MCU cannot do any useful processing until all of the digital and analog circuits are fully settled and operational, the C8051F9xx series offers the industry’s fastest wake-up and analog settling time. As fast as 2 µS for complete system (analog and digital) wake up.
- Try the Battery Life Estimator Utility: Understand the discharge characteristics of different system configurations to optimize low power applications.
Lowest power MCU across all operating modes
Silicon Labs C8051F9xx MCU power savings vs. competitive devices

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Low-Power MCU Products
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