RA4E2 Microcontrollers Renesas Electronics RA4E2 Microcontrollers deliver optimized performance with a 100MHz Arm® Cortex®-M33 core, 128KB code flash memory, and 40KB SRAM. Renesas Electronics RA4E2 features peripherals like a general PWM timer, 12-bit A/D converter, 12-bit DAC, USB FS device, SCI, SPI, I3C, SSI, CANFD, and HDMI-CEC. The device is ideal for low-memory, small-package, low-pin count applications and ensures high-speed performance. And with the support of the Flexible Software Package (FSP), the RA4E2 group makes it easy to design applications.