Arm Cortex-M33 core with Arm Trustzone security was first unveiled in 2016, and since then several silicon vendors introduced secure Cortex-M33 microcontrollers with, for instance, Nordic nRF91 LTE-IoT SoC, STMicro STM32L5 MCU family, or NXP LPC551x/S1x.
Renesas has now added one more alternative with RA6M4 Cortex-M33 microcontroller family clocked at up to 200 MHz with increased performance and security compared to their earlier Cortex-M4 RA6 microcontrollers clocked at 120 Mhz.
Key features for RA6M4 microcontrollers:
- MCU Core - Arm Cortex-M33 @ 200 MHz with TrustZone technology
- Memory - 256 KB RAM include 64KB ECC RAM
- Storage - 512-1024