New Product Introduction

Renesas RE01 256KB

RE01 256KB - 705 ULPMark-CP score global top class ultra-low power MCU based on SOTB™ process technology

Renesas RE01 256KB MCU - front and back side

The RE01 256KB based on SOTB™ process technology realizes ultra-low current consumption in both active and standby mode and high speed operation (64MHz) at low voltage (1.62V) , which is impossible to achieve with conventional bulk silicon process. The RE01 has been certified by EEMBC to have the highest score of 705 for the ULPMark-CP by the EEMBC ULPMark™ benchmark; this benchmark has been developed to provide a standard method to compare the energy efficiency of ultra-low power MCUs.

The RE01 256KB can significantly extend battery life and deliver high performance even in applications that use small batteries and energy harvesting power sources that can supply only a small amount of current. The RE01 256KB can be used more generally for a variety of IoT sensors such as those in smart home/building, structure health monitoring, trackers, and wearable devices.

The RE01 256KB product has an energy harvesting control circuit, ultra-low power consumption 14-bit ADC (about 4uA operation ), low power flash programming (rewriting at about 0.6mA), and security function (Trusted Secure IP). Trusted Secure IP is capable of performing symmetric-key algorithm (AES) and random number generation at high speed by dedicated on-chip hardware, and can be used to realize the secure updating of flash memory and prevention of unauthorized firmware startup (secure boot). In addition, user key data can be safely managed by Trusted Secure IP, which contributes to protecting IoT-embedded devices from virus intrusion and wiretapping.

Also available: RE01 1500KB


Key features

  • The world’s most energy efficient
    • Active current:25μA/MHz / 12μA/MHz(Ex DCDC)
    • Standby current:400nA
  • High-speed operation at low voltage
    • High-speed operation 64MHz at low voltage 1.62V
    • 32-bit CPU Arm® Cortex®-M0+
  • Ultra-low power peripherals
    • 14-bitADC:4uA, Flash programing:0.6mA、
    • RTC operation in Deep standby 380nA@1.8V
    • Energy harvesting control circuit
  • Strong security
    • Trusted Secure IP (AES, Random number generation)
    • Secure updating of flash memory, Secure boot



  • Smart Home/Building
  • Structure Health Monitoring
  • Tracker
  • Wearable


Evaluation Kit RE01 256KB

The Evaluation Kit RE01 256KB enables evaluation and development by combining energy harvesting with the user's hardware system, which makes semi-permanent battery maintenance for the RE01 256KB unnecessary.

The kits are now available at Avnet Silica. Contact your local Sales office with the part number RTK70E0118S00000BJ.


Renesas RE01 256KB Evaluation Kit content

Block diagram

Renesas RE01 256KB block diagram


RE Family

The RE Family based on Renesas' innovative SOTB™ process technology realizes ultra-low current consumption in both active and standby mode and fast operation at low operation voltage.

Related Documents

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