Renesas Electronics Expands RA MCUs with New RA4 Entry-Level Portfolio, Delivering Superior Value with Balanced Low-Power Performance and Feature Integration

Tokyo, Japan, September 22, 2021 – Renesas Electronics Group (TSE: 6723), a global supplier of semiconductor solutions, today announced the launch of an Arm-based®Cortex®– New microcontroller (MCU) product group with M33 core, expanding its 32-bit RA MCU product family. The new 100MHz performance RA4E1 product group has a balance between high performance, optimized function integration and power consumption. It can shorten the product design cycle and can be easily upgraded to other RA series products.

The Renesas RA product family now has more than 150 models operating at frequencies from 48MHz to 200MHz. RA MCUs offer excellent power consumption levels, extensive communication connectivity options and include Arm TrustZone®Advanced safety features including technology. All RA products are supported by the Renesas Flexible Configuration Package (FSP). The FSP contains efficient drivers and middleware to simplify the implementation of communication and security functions, and a graphical user interface simplifies and accelerates the development process. FSP can flexibly reuse existing code resources, and easily achieve compatibility and expansion with other RA series products. Developers using the FSP also have access to a variety of tools through the extensive Arm ecosystem to help speed time to market, as well as support through Renesas’ extensive partner network.

Roger Wendelken, Senior Vice President, IoT and Infrastructure Business Division, Renesas Electronics, said, “Our RA products continue to exceed expectations through robust performance, advanced functionality, easy-to-develop systems, and product value. The development of the new RA4E1 product lineup is a To expand the RA product family with entry-level product options to meet customer needs. We believe these products will be ideal for a variety of application scenarios, and many designers will find RA products to meet their current and future growth needs.”

RA4E1 MCU Product Group

The RA4E1 MCU is the first entry-level product in the 100MHz performance RA4 family. The product group includes four different products ranging from 48-pin to 64-pin packages, with configurations ranging from 256kB to 512kB of Flash and 128kB of SRAM. The RA4E1 MCU offers the lowest operating power consumption in its class, running at only 60μA/MHz when executing programs from flash memory at 100MHz. The RA4E1 offers an optimized combination of innovative peripherals, connectivity features and reduced system cost. The RA4E1 product group is ideal for cost-sensitive applications and other systems that combine performance with low power consumption.

Key Features of the RA4E1 Product Group

Arm Cortex-M33 CPU core running at 100MHz

256kB to 512kB integrated flash options, 128kB SRAM

Operating temperature range: Ta = -40°C ~ 85°C

48-pin to 64-pin package options

Low power operation: 60µA/MHz running at 100MHz; 81µA/MHz running CoreMark performance test program from flash memory

Integrated full-speed USB 2.0 interface, serial communication interface, CAN and QSPI

Lower overall system cost: On-chip high precision (±0.25%) internal oscillator using FLL, rich GPIO resources, excellent analog functions, low voltage detection and internal reset function

RA4E1 MCUs can be seamlessly combined with Renesas’ analog and power products to create comprehensive solutions for a wide variety of applications. These include smart IoT air filters and smart coffee machines using the RA4E1 MCU. Renesas Electronics offers a “Success Portfolio” of more than 250 products that use seamless collaboration for a wide variety of applications and end products. For more information, visit:


All RA4E1 MCU products are available now. To help engineers get started with the RA4E1 MCU quickly, Renesas has released the FPB-RA4E1 Rapid Prototyping Board with J-Link OB debugger.

The Links:   LTM170E4-L01 LJ512U25