January 30, 2024 /SemiMedia/ -- Renesas Electronics Corporation recently introduced the RA8T1 microcontroller (MCU) group based on the Arm® Cortex®-M85 processor. RA8T1 devices address real-time control of motors, power supplies and other products commonly used in industrial and building automation, as well as smart homes.

The RA8T1 group is the third in Renesas’ RA8 Series, all of which deliver breakthrough performance of 6.39 CoreMark/MHz1. All RA8 MCUs take advantage of the high performance of the Arm Cortex-M85 processor and Arm’s Helium™ technology that provides up to a 4X performance boost for digital signal processor (DSP) and machine learning (ML) implementations over the Cortex-M7 core. This added performance in RA8T1 devices can be used for AI functions that can predict maintenance requirements for motors, reducing costly downtime.

The new RA8T1 devices include advanced PWM timing features such as 3-phase complementary output, 0% and 100% duty output capability, a double-buffer compare match register, and five phase counting modes. Analog capabilities of the new MCUs include 12-bit ADCs, 12-bit DACs and high-speed comparators used in voltage and current measurement and over-current protection. RA8T1 MCUs also offer multiple communications functions, including SCI, SPI, I2C/I3C, CAN/CAN-FD, Ethernet, and USB-FS. The new group also provides port output shutdown capability when an anomaly is detected, an important safety feature in motor control. These capabilities combined with the advanced timers and Renesas’ power management expertise, enable customers to build comprehensive, low-power motor control solutions.

“Renesas is already the market leader in motor control with the widest MCU portfolio for smart home, building and factory automation systems,” said Daryl Khoo, Vice President of the Embedded Processing 1st Division at Renesas. “The performance of these MCUs is critical in high-speed electric motor control that requires sophisticated algorithms and application software to run in a reliable, safe and secure manner. The RA8T1 MCUs bring unprecedented CPU horsepower to the portfolio along with Helium technology that allows our customers the additional flexibility to deliver smart (AI/ML) solutions without the need for additional hardware.”

The RA8T1 Group MCUs are available now, along with the FSP software. The new MCUs are supported in Renesas’ Flexible Motor Control development kit that enables easy evaluation of motor control using permanent magnet synchronous motors (brushless DC motors), and the Renesas Motor Workbench development tool. This development kit offers a common design platform with numerous Renesas motor control MCUs from the RA and RX families, enabling migration of IP across numerous devices. For more information, please visit renesas.com/RA8T1.