Renesas Extends RA MCU Family with RA6T1 MCU Group for Motor Control and AI-based Endpoint Predictive Maintenance
Arm Cortex-M4-based MCU Rich Peripherals Reduce Motor Control BOM Cost and Supports Predictive Maintenance Solution with Google’s TensorFlow Lite for Microcontrollers
TOKYO, Japan ― Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced the extension of its microcontroller (MCU) portfolio designed for motor control applications targeting smart homes, industrial automation, and building automation. Featuring a rich set of peripheral functions and AI-based failure detection, the four new RA6T1 Group MCUs are the latest members of Renesas’ rapidly expanding Arm®-based RA Family, and the first RA MCUs designed for the unique needs of motor control in home appliances, HVAC, solar inverters, and AC drives.
“As home appliances and building and industrial automation equipment become smarter and more complex, manufacturers are grappling with rising BOM costs to support increasing motor performance demands,” said Roger Wendelken, Senior Vice President of Renesas’ IoT and Infrastructure Business Unit. “The RA6T1 MCUs combine the superior performance and flexibility of the Arm-based RA Family with Renesas’ long-standing motor control expertise. In addition, with the emergence of AI-based needs, Renesas is excited to complement Google’s TensorFlow Lite supported platforms with the RA6T1 motor control and predictive maintenance solution.”
“AI and machine learning are taking predictive maintenance to the next level as the industry advances toward Maintenance 4.0. We are excited to join forces with Renesas and accelerate the adoption of smart home and Industrial IoT applications,” said Ian Nappier, Product Manager at Google. “Integrating our open-source TensorFlow AI framework with Renesas’ powerful RA6T1 MCUs brings breakthrough intelligence to motor control equipment.”
Based on the Arm Cortex®-M4 core, the new RA6T1 32-bit MCUs operate at 120 MHz and feature a rich collection of peripherals optimized for high performance and precision motor control. The integrated peripheral functions with high-speed analog significantly reduce bill of materials (BOM) cost while boosting motor control performance. For example, a single RA6T1 MCU can simultaneously control up to two brushless DC (BLDC) motors. In addition, the Google TensorFlow™ Lite Micro framework for TinyML applications adds enhanced failure detection to the RA6T1 MCUs, offering customers an intelligent, easy-to-use, and cost-effective sensorless motor system for predictive maintenance. The TensorFlow AI framework detects potentially detrimental anomalies in motor systems earlier and more accurately to help customers improve their predictive maintenance processes and reduce maintenance costs.
Key Features of the RA6T1 Group
120 MHz Arm Cortex-M4 with floating point unit
Scalable from 64-pin to 100-pin LQFP packages
64 KB RAM and scalable from 256 KB to 512 KB Flash
32-bit PWM timer with advanced functions, including support for seven types of complementary PWM modes for the carrier generation
250 usec sampling period when used with the motor control solution bundle
High-speed 12-bit ADC with a maximum speed of 0.4 usec and a sample/hold function that allows simultaneous acquisition of 3 shunt currents
6-channel programmable gain amplifier
Supports IEC 60730 standard for functional safety in home appliances
Renesas also offers a new Renesas Solution Starter Kit (RSSK) for developers working on a motor control solution using the RA6T1 MCUs. The RSSK offers easy motor control debugging and allows customers to immediately begin evaluating their motor control design, executing real-time analysis and tuning to accelerate development. The easy-to-use motor solution includes an RA6T1 CPU card and 48V-compatible inverter board, along with a GUI tool for motor workbench, and a sensorless vector control sample program with three-shunt method that corresponds with the Flexible Software Package (FSP). Using the RA Family FSP makes it easy for customers to port the sample code to their program.
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