480 MHz Cortex-M85-based MCU offers high performance and abundant features for motor control

The new RA8T1 microcontrollers from Renesas are built with a wide set of features that are optimized for real-time motor control tasks in a wide range of industrial automation and consumer applications.

Based on an Arm^® Cortex^®-M85 core running at up to 480 MHz, these MCUs are capable of advanced calculations for the most complex movements. This architecture is supported by 1 Mbyte or 2 Mbytes of code Flash memory with dual-bank capability, 12 kbytes of data Flash, and 1 Mbyte of SRAM.

Arm Helium technology enhances the capabilities of these MCUs to give lower power consumption as well as additional functionality. This includes high-level AI at the edge or digital signal processing, with four times the machine learning performance when compared to existing Cortex-M7 devices. This functionality is supported by an additional 128 kbytes of memory with error correction code and 32 kbytes of I/D cache.

To serve as a basis for a complete motor control system, the RA8T1 devices have 14‑channel PWM timers operating at 120 MHz, two 21-channel ADCs with 3-channel sample and hold, and two DACs. These have been engineered to support the low overall power consumption of the RA8T1 MCU. In addition to standard interfaces, these MCUs also support I3C, Ethernet MAC, CAN FD, and USB 2.0 Full-speed communications.

The RA8T1 MCUs also feature numerous safety and security features in addition to Arm’s TrustZone technology. The safety features include a memory protection unit, SRAM parity check, Flash area protection, clock-frequency accuracy measurement, and ADC self test. Key security measures include secure debug, true random number generator, immutable storage, RSIP-E51A cryptographic engine, and protection against side-channel attacks.

To support different application requirements, Renesas produces the RA8T1 MCUs in the following package options: LQFP100, LQFP144, LQFP176, and BGA224.