Renesas announces IoT security certification for RA devices Renesas has announced both PSA Certified Level 2 and Security Evaluation Standard for IoT Platforms (SESIP) certifications for its RA Family of 32-bit Arm Cortex-M microcontrollers (MCUs). The company's RA6M4 MCU Group devices with the Flexible Software Package (FSP) have been PSA Level 2 certified, expanding on the PSA Certified Level 1 achieved by RA4 and RA6 Series MCUs. Renesasâ RA6M3, RA6M4, and RA4M2 MCU groups have achieved SESIP1 certification with Physical and Logical Attacker certifications. Renesas said that in addition to these widely recognized industry certifications, the company's RA MCUs now offer customers improved levels of IoT security by combining Secure Crypto Engine IP with NIST CAVP certifications on top of Arm TrustZone for Armv8-M.