--- title: Renesas RX74M and RX74N – 600MHz industrial MCUs with... description: Renesas has launched the RX74M and RX74N, 32-bit industrial MCUs built on a 22nm process with embedded MRAM. Both run a 600MHz RXv3e core, reaching up to 3,604... canonical: https://daily.dev/posts/renesas-rx74m-and-rx74n-600mhz-industrial-mcus-with-rxv3e-core-embedded-mram-22nm-process-sdql3u88t twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Renesas RX74M and RX74N – 600MHz industrial MCUs with RXv3e core, embedded MRAM, 22nm process | daily.dev og:description: Renesas has launched the RX74M and RX74N, 32-bit industrial MCUs built on a 22nm process with embedded MRAM. Both run a 600MHz RXv3e core, reaching up to 3,604... og:url: https://daily.dev/posts/renesas-rx74m-and-rx74n-600mhz-industrial-mcus-with-rxv3e-core-embedded-mram-22nm-process-sdql3u88t og:image: https://api.daily.dev/og/posts/SDQl3u88t.png og:image:alt: Renesas RX74M and RX74N – 600MHz industrial MCUs with RXv3e core, embedded MRAM, 22nm process og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Renesas RX74M and RX74N – 600MHz industrial MCUs with RXv3e core, embedded MRAM, 22nm process **[CNX Software](https://daily.dev/sources/cnx-software)** · 6 min read · 0 upvotes · 0 comments ## Summary Renesas has launched the RX74M and RX74N, 32-bit industrial MCUs built on a 22nm process with embedded MRAM. Both run a 600MHz RXv3e core, reaching up to 3,604 CoreMark, with up to 1MB code MRAM, 1.5MB SRAM, and 256KB zero-wait-state local RAM. The RX74M adds dual Gigabit Ethernet MACs, a TSN-capable switch, and an EtherCAT slave controller, while the RX74N has a single Gigabit Ethernet interface. Pricing starts at $10.74 for the 600MHz RX74M and $7.62 for the 480MHz RX74N in 1,000-unit quantities. Software support includes Renesas FSP, e² studio, and Zephyr RTOS. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What's the difference between the Renesas RX74M and RX74N microcontrollers? The RX74M includes dual Gigabit Ethernet MACs, a TSN-capable 2-port Ethernet switch, and an integrated EtherCAT slave controller for industrial networking, while the RX74N has only a single Gigabit Ethernet interface with no EtherCAT or TSN support. Both share the same 600MHz RXv3e core, up to 1MB code MRAM, 1.5MB SRAM, and RSIP-E50D security engine. _Comparing industrial MCU networking options gets easier when specs like these surface on daily.dev._ ### How much CoreMark performance does the Renesas RXv3e core deliver at 600MHz? The RXv3e core in the RX74M and RX74N reaches up to 3,604 CoreMark when clocked at 600MHz. The core also supports single- and double-precision floating-point operations, a trigonometric function accelerator, and 32KB instruction and data caches with ECC. Lower clock variants run at 300MHz and 480MHz. _Tracking MCU benchmark numbers like this helps engineers sizing embedded workloads via daily.dev._ ### What is embedded MRAM used for in the Renesas RX74M and RX74N MCUs? MRAM replaces traditional flash memory for program storage, making programming and firmware updates faster. The chips offer up to 1MB of code MRAM with dual-bank support, 48KB data MRAM rated for 100,000 programming cycles, and 128KB user extra MRAM configurable as MTJ-OTP. Renesas previously used MRAM in its RA8T2, RA8D2, and RA8M2 Cortex-M85 MCUs. _Engineers evaluating MRAM-based MCUs for faster firmware updates can follow releases like this on daily.dev._ ## Similar posts on daily.dev - [Ultra-low-power Cortex-A55 MPUs for industrial HMI and IoT applications](https://daily.dev/posts/ultra-low-power-cortex-a55-mpus-for-industrial-hmi-and-iot-applications-d6jzwpuhn) · CNX Software · 1 upvotes · 0 comments - [Renesas Launches 64-Bit MPUs for HMI and IoT Edge](https://daily.dev/posts/renesas-launches-64-bit-mpus-for-hmi-and-iot-edge-pznfsnztc) · Embedded.com · 0 upvotes · 0 comments - [WCH CH32V407/467 RISC-V MCU integrates Fast Ethernet MAC \+ PHY, 480 Mbps USB 2.0 PHY, up to 8 MB on-chip PSRAM](https://daily.dev/posts/wch-ch32v407-467-risc-v-mcu-integrates-fast-ethernet-mac-phy-480-mbps-usb-2-0-phy-up-to-8-mb-on--o1t3slg6n) · CNX Software · 1 upvotes · 0 comments - [NXP MCX A5 MCUs Bring 10BASE-T1S Ethernet to Industrial Edge Nodes](https://daily.dev/posts/nxp-mcx-a5-mcus-bring-10base-t1s-ethernet-to-industrial-edge-nodes-l71hfzeui) · Embedded.com · 0 upvotes · 0 comments - [The 192 MHz WCH CH32V205 RISC-V MCU offers a 480 Mbps USB 2.0 interface](https://daily.dev/posts/the-192-mhz-wch-ch32v205-risc-v-mcu-offers-a-480-mbps-usb-2-0-interface-3gv9thd8u) · Adafruit Blog · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/renesas-rx74m-and-rx74n-600mhz-industrial-mcus-with-rxv3e-core-embedded-mram-22nm-process-sdql3u88t) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Renesas RX74M and RX74N – 600MHz industrial MCUs with RXv3e core, embedded MRAM, 22nm process","url":"https://daily.dev/posts/renesas-rx74m-and-rx74n-600mhz-industrial-mcus-with-rxv3e-core-embedded-mram-22nm-process-sdql3u88t","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/renesas-rx74m-and-rx74n-600mhz-industrial-mcus-with-rxv3e-core-embedded-mram-22nm-process-sdql3u88t"},"datePublished":"2026-10-26T00:07:51.366Z","dateModified":"2026-10-26T00:08:26.737Z","description":"Renesas has launched the RX74M and RX74N, 32-bit industrial MCUs built on a 22nm process with embedded MRAM. 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