Renesas Electronics RX74N 32-Bit General Purpose MCUs
Resesas RX74N 32-Bit General Purpose Microcontrollers (MCUs) are high-performance general-purpose MCUs in the RX family. These products expand the RX MCU portfolio to support applications with higher processing requirements. The Resesas RX74N was developed using the 22nm process technology, achieving high-speed operation of the RXv3e core and integration of large-capacity memory with a complex bus architecture. The RXv3e core is enhanced with a security ProtectZone feature, which enables separate access management for the Secure World and Non-Secure World.
Features
- High performance (600MHz/300MHz) and large memory 3603 CoreMark at 600MHz (RXv3e core) with register bank save each 32KB Cache (I/D), 256KB TCM
- 1MB code MRAM with dual bank, 48KB data MRAM, 1.5MB SRAM with ECC
- Supports XiP (eXecute-in-Place) from external Octa Flash memory with on-the-fly decryption
- 200MHz PWM control and high-resolution PWM
- 2-ch Gigabit EtherMAC, intelligent L3 Ethernet switch with Ethernet TSN support
- Various generation connectivity functions (CAN FD with Gateway, I3C, USB HS, etc.)
- Packages ranging from 100-pin to 320-pin
- 600MHz operation with the RXv3e core and enhancements to the RX system bus delivers superior performance
- Realizes equipment control and Ethernet/EtherCAT communication on a single chip, contributing to a reduction in the number of parts and PCB footprint
- Built-in EtherCAT slave controller and intelligent Ethernet system realize multi-protocol industrial Ethernet support
- Ethernet TSN (Time-Sensitive Network) standard support
Applications
- Industrial automation (IA)
- AC servos
- Robots
- PLCs
- Remote I/O
- Building automation (BA) - HVAC controllers
- Energy management systems (EMS)
- Smart meters
- Power conditioners
- Other industrial applications
Block Diagram
Published: 2026-10-19
| Updated: 2026-10-19