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  "path": "/2026/03/04/renesas-ra0e3-arm-cortex-m23-mcu-is-a-stripped-down-ra0e1-for-cost-sensitive-applications/",
  "publishedAt": "2026-03-04T03:48:52.000Z",
  "site": "https://www.cnx-software.com",
  "tags": [
    "Hardware",
    "Renesas MCU",
    "Arduino",
    "automation",
    "cortex-m23",
    "development board",
    "industrial",
    "low power",
    "mcu",
    "renesas",
    "safety",
    "security",
    "Renesas RA0E3 Arm Cortex-M23 MCU is a stripped-down RA0E1 for cost-sensitive applications",
    "CNX Software - Embedded Systems News"
  ],
  "textContent": "Back in 2024, Renesas first released the RA0E1, an ultra-low-power Cortex-M23 MCU designed for cost-sensitive applications, followed by the RA0E2, with extended temperature range support (-40°C to +125°C). The company has expanded its lineup with the RA0E3, a stripped-down version of the RA0E1 with less memory, fewer peripherals, and fewer GPIOs, designed for small and budget-focused applications for sensing, motor assist, safety, and basic system control. The MCU retains the same 32 MHz Arm Cortex-M23 (Armv8-M) core but now comes with 16KB flash and 2KB SRAM. It features an 8-channel 16-bit TAU timer, a 32-bit interval timer, a 10-bit ADC with a temperature sensor, a Data Transfer Controller, and serial interfaces including SPI, I²C, and UART (with LIN support). Additionally, it comes with up to 17 GPIOs, pull-ups, open-drain support, and built-in clock sources. It has an operating voltage range of 1.6V to 5.5V and supports −40°C to +125°C operation [...]\n\nThe post Renesas RA0E3 Arm Cortex-M23 MCU is a stripped-down RA0E1 for cost-sensitive applications appeared first on CNX Software - Embedded Systems News.",
  "title": "Renesas RA0E3 Arm Cortex-M23 MCU is a stripped-down RA0E1 for cost-sensitive applications"
}