Renesas targets home appliance and industrial applications with 5V RX660 32-Bit MCUs

2 min read

Renesas has announced a new addition to the RX 32-bit MCU Family, unveiling the RX660 group of MCUs that support operating voltages of up to 5V and address high levels of electromagnetic interference.

The RX660 is the first in Renesas’ higher-end RX general-purpose MCU devices to support 5V and the first to feature a built-in CAN FD controller that enables fast data communication. The high operating voltages of these MCUs eliminate the need for external noise-suppression components that are currently required for many 3V MCUs. This allows customers to reduce development time, component cost, and improves system quality.

In recent years, the scale of software has grown as functional safety and security have become a critical part of electronic systems. As the number of product models has also increased, more products are equipped with realtime operating systems to simplify software maintenance. Additionally, products need to be designed to accommodate future functional enhancements using over-the-air (OTA) updates.

In response, Renesas has developed the RX660 using its RXv3 core (6.00 CoreMark/MHz) with a maximum operating frequency of 120 MHz, offering high performance and power efficiency. The devices feature large-capacity ROM of up to 1 megabyte (MB) and RAM of up to 128 kilobytes (KB) and are available in many package options (48-pin to 144-pin). In particular, the effective pin count for general-purpose I/O pins is 10% higher than on the earlier RX210, which is also 5V compatible. For example, the 144-pin version of the RX660 has an effective pin count of 134, 11 more than on the RX210. With this increase in I/O count, more sensors can be connected to an MCU for a given package, making it simpler to upgrade existing systems.

“Noise suppression is essential for home appliances and industrial products since ambient electromagnetic waves in the surrounding environment can cause system malfunctions or reduce performance,” said Sakae Ito, Vice President of the IoT Platform Business Division at Renesas. “We introduced the RX660 in response to strong demand from customers who need to design products with high power supply voltages.”

CAN is popular in industrial equipment and robotics, but the increasing volume of data communication due to the use of many sensors is causing insufficient bandwidth and higher costs for requiring multiple buses. The RX660 is the first group in the RX Family to integrate a CAN FD controller that supports fast, high-volume data transfer. CAN FD allows security signals in large volume to be transmitted in a single frame, making it possible to build stronger security into devices.

Two development boards are available for the RX660 group for both prototyping and detailed evaluation. Target Board for RX660 is a prototyping board, while the Renesas Starter Kit for RX660 is intended for detailed evaluation and allows users to make use of the full functionality of the RX660 when developing applications.

The RX660 MCUs and development boards are available now.