Ultra-Small RX651 32-Bit Microcontrollers for IoT Connectivity Modules and Space-Constrained Edge Devices

Published  July 30, 2019   0
Ultra-Small RX651 32-Bit Microcontrollers for IoT Connectivity Modules and Space-Constrained Edge Devices

Renesas Electronics released four new RX651 32-bit microcontrollers (MCUs) supplied in ultra-small 64-pin BGA and LQFP packages and integrates Trusted Secure IP (TSIP), connectivity, and trusted flash area protection that enable flash firmware updates in the field through secure network communications. The new RX651 32-bit MCUs expand Renesas popular RX651 MCU Group with a 64-pin (4.5mm x 4.5mm) BGA package that reduces footprint size by 59 percent compared to the 100-pin LGA, and a 64-pin (10mm x 10mm) LQFP that offers a 49 percent reduction versus the 100-pin LQFP.

The RX651 32-bit MCUs features advanced security needs for endpoint devices employing compact sensor and communication modules in industrial, building automation, network control,  and smart metering systems operating at the IoT edge. The RX651 32-bit MCUs will fulfil the need for secure over-the-air (OTA) firmware updates with integrated TSIP, enhanced flash protection, and other technology advancements. The enhanced security features of RX651 are based on the high-performance RXv2 core and 40nm process that provide superior performance with a 520 CoreMark score at 120 MHz and strong power efficiency with a 35 CoreMark/mA score as measured by EEMBC® Benchmarks.


The RX651 32-bit MCUs integrates dual bank flash memory which enables engineers to realize high root-of-trust levels through a combination of TSIP that protects the encryption key, encryption hardware accelerators such as AES, 3DES, RSA, SHA, and TRNG and code flash area protection that protect boot code from reprogramming. The RX651 MCUs are optimized for connected industrial environments and monitor the operating state of machinery from both inside and outside the factory, enabling data exchanges to change production instructions, and reprogram MCU memory to update equipment settings.


Features of the RX651 64-pin MCUs:

  • Enables advanced IoT edge devices
  • Easy in-the-field firmware updates
  • Network connectivity features


The RX651 64-pin MCUs are available now from authorized distributors of Renesas Electronics with prices starting at $4.58 USD in 10,000-unit quantities. Also, Low-cost Renesas Target Boards and Renesas Starter Kits are available combined with the e² studio integrated development environment to confirm performance and jumpstart system development.