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

Lowest Power MCU across all operating modes graphic

Download the Low-Power Solutions Guide


Low-Power MCU Products

Low-Power Family  Flash Memory* MIPS  RAM  Dig. I/O*  Active/Sleep*  Dev Kit
C8051F90x-91x  16 kB  25 768   16 160 µA/MHz /
50 nA 
C8051F912DK 
C8051F92x-93x 64 kB 25 4352   24 170 µA/MHz /
50 nA
C8051F930DK 
C8051F96x 128 kB 25 8448 57 110 µA/MHz /
50 nA
C8051F960DK
C8051F98x 8 kB 25 512 17 150 µA/MHz /
10 nA
C8051F996DK
C8051F99x 8 kB 25 512 17 150 µA/MHz /
10 nA
C8051F996DK
Si100x 64 kB 25 4352 22 170 µA/MHz /
65 nA
Si1000DK
Si101x 16 kB 25 768 15 160 µA/MHz /
25 nA
Si1010DK
Si102x/3x 128 kB​ 25​ 8448​ 573 12-bit, 11-ch.,
300 ksps ​
Si1020DK 

Si1024DK

 * Denotes maximum value in family

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Video: Designing for Low Power Operation