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S3 Series

High Efficiency


Applying the processing power of the Arm® Cortex®-M4 CPU core with a Floating Point Unit to a lower-speed MCU line which is built on an ultra-low power silicon process is the recipe for extremely efficient embedded system control. The Renesas Synergy™ S3 Series of MCUs does all this and much more.

Series Features:


Technology Differentiation

What Makes the S3 Series Stand Out

Super-efficient CPU processing power on an ultra-low power silicon process with Flash memory sizes up to 1 MB and SRAM up to 192 KB set the stage for the S3 Series MCUs to meet the needs of many portable end-products. Battery life is stretched while operating all the way down to 1.6V including the option to operate analog and digital peripherals in special low power modes. Floating point computations and even DSP operations are executed with minimal CPU clock cycles for efficient pre-processing of acquired data before the data is stored or securely transmitted. A built-in segment LCD controller with capacitive touch interface enables the use of low cost display glass to address many mid-range HMI applications. All of these attributes along with security features, such as a True Random Number Generator and AES, make S3 Series MCUs uniquely the right fit for many connected portable applications.


Typical End Applications

Portable medical and fitness devices, smart connected sensors, building control, fire and security control, thermostats, and appliances.


  • 130-nm low power process
  • Operating temp. range: -40°C to 105°C
  • GPIO pins: up to 124
  • LQFP: 48, 64, 100, 144 pins
  • BGA: 121 pins
  • LGA: 100, 145 pins
  • QFN: 40, 48, 64 pins

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