Renesas Debuts Faster Microcontrollers for Industrial Use
The new 600 MHz RX74M and RX74N chips integrate MRAM and TSN support to accelerate real-time industrial automation performance.
Updated on Oct. 23, 2026 in Semiconductors
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Renesas Electronics Corporation has launched the RX74M and RX74N, a new line of 32-bit microcontrollers built on a 22nm process. These chips are designed to accelerate real-time processing in industrial automation through a combination of high-speed architecture and embedded memory.
Why it matters
By moving to a 22nm process and incorporating advanced embedded memory, Renesas aims to significantly boost computational throughput for smart industrial equipment. This launch provides engineers with hardware capable of managing complex, high-speed networking tasks required by modern factory automation.
The new RX74M and RX74N chips operate at 600 MHz, a notable increase over the 240 MHz speed of the previous generation. They feature 1 MB of MRAM, 1.5 MB of SRAM, and 256 KB of tightly coupled memory.
The players
Renesas Electronics Corporation
A global supplier of microcontrollers, analog, power, and SoC products for automotive, industrial, and infrastructure markets.
The details
The microcontrollers rely on the RXv3e core to drive high-speed real-time processing capabilities. They utilize embedded magnetoresistive random-access memory (MRAM) — a non-volatile memory type that stores data using magnetic states — which enables data writes without the latency penalty of a prior erase operation. For industrial connectivity, the RX74M includes an EtherCAT slave controller and a Time-Sensitive Networking (TSN)-capable Gigabit Ethernet switch, while ProtectZone technology establishes hardware-level isolation between secure and non-secure memory regions.
Timeline
October 23, 2026: Renesas Electronics launched the RX74M and RX74N microcontrollers.
The Tech Race
This release marks a substantial architectural performance increase over the prior generation of Renesas microcontroller technology. It positions the firm to better compete in the high-performance industrial automation sector, where demand for TSN-capable hardware and secure, high-speed memory is rising.
Developers of industrial automation systems can now begin designing around these chips to handle more complex, data-heavy tasks. The hardware requires specialized integration for its EtherCAT and TSN networking features, aimed at immediate adoption in smart factory environments.
The takeaway
The move to a 22nm process with embedded MRAM signals a shift toward higher performance and lower latency for industrial control systems. Engineers should monitor technical documentation releases for updated software development kits to leverage the ProtectZone and TSN features.
Further reading
For broader trends in chip design for industrial applications, visit our Semiconductors section.
Source note: This article includes information reported by Electronics For You - Official Site ElectronicsForU.com.
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