Ideal for portable medical and fitness devices with smart connected sensors, the S3A3 MCU Group has the optimal combination of low power and high performance, with an ARM® Cortex® -M4 CPU core running up to 48 MHz, 512 KB of flash memory, and 96 KB of SRAM. It includes a segment LCD controller, Capacitive Touch Sensing Unit, USB 2.0 Full-Speed, rich set of analog and timing peripherals, power management, and safety and security features.

Synergy Software Package (SSP)

Commercial software worth over $100K which is available to developers using the Synergy Platform for no charge and with unlimited production license rights. The production-ready SSP is fully tested, maintained, and supported by Renesas.

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  • 48 MHz Arm® Cortex®-M4 CPU
  • Ideal for portable medical and fitness devices with smart connected sensors
  • Segment LCD controller
  • Capacitive Touch Sensing Unit
  • USB 2.0 Full-Speed
  • Rich set of analog and timing peripherals
  • Power management
  • Safety and security features




  • Patient Monitor


Design & Development

Software & Tools

Software & Tools

Software title
Software type
QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors
In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
Solution Toolkit Renesas
Renesas Synergy™ Software Package (SSP)
A tightly integrated, optimized, and qualified suite of software with a commercial RTOS that scales with end-product complexity that simplifies complex system-level services.
Software Package Renesas
Security Key Management Tool
Key wrapping tool for key management systems using Renesas security IP. Enables secure installation and update of user application and device lifecycle management (DLM) keys.
Solution Toolkit Renesas
3 items

Software Downloads

Type Title Date
PCB Design Files Log in to Download ZIP 32.36 MB
1 item

Sample Code

Boards & Kits

Boards & Kits