32-bit MCUs Include High-temp Types for Motor Control

32-bit mcu

Renesas’s new 32-Bit MCUs support circuit boards in high-temperature locations and compact circuit board design in space-constrained home appliances and industrial machinery

In industrial machinery, office equipment, as well as home appliances, the switch from circuit board design with a smaller surface area is accelerating but this also reduces the board’s capacity to disperse heat. To address these application needs, Renesas has added new high-temperature-tolerant products to its MCU lineup that can operate in high-temperature spaces and on hot circuit boards. The new devices will provide greater flexibility for designers of products that operate in high-temperature environments, enabling the trend toward more compact devices to advance, Renesas said.

32-bit MCUs now handle hi-temp applications

The company’s RX24T and RX24U Groups of 32-bit microcontrollers (MCUs) now include new high-temperature-tolerant models for motor-control applications that require an expanded operating temperature range.


“The new RX24T G Version and RX24U G Version support operating temperatures ranging from −40°C to +105°C, while maintaining the high speed, high functionality, and energy efficiency of the RX24T and RX24U MCUs”, claims Renesas.

“Through the IoT, home appliances and industrial machinery are attaining greater functionality based on network connectivity and user interface enhancements and effective use of the limited interior space, as well as the higher temperature environments, are becoming major issues,” said Akira Denda, Vice President of Renesas’ Industrial Automation Business Division, Industrial Solution Business Unit. “The newest members of the RX24T and RX24U Groups provide the excellent function and performance that RX users have come to expect from their MCUs while addressing the heat tolerance requirements to support safe and flexible equipment design.”

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Software can be developed using the RX24T and RX24U CPU cards combined with the 24 V Motor Control Evaluation Kit which enables developers to create motor control applications in less time.

More about the RX24T and RX24U MCUs

The 32-bit RX24T and RX24U features a maximum operating frequency of 80 MHz. It is equipped with peripheral functions for motor control such as timers, A/D converter, and analog circuits that enable efficient control of two brushless DC motors by a single chip.

With the addition of the G versions, all 32-bit RX MCU family products for motor-control applications now support operating temperature from −40°C to +105°C.


The RX24T G Version and RX24U G Version are available now in mass production. The RX24T covers 11 models with pin counts ranging from 64 to 100 pins and memory sizes from 128 KB to 512 KB. The RX24U covers six models with pin counts ranging from 100 to 144 pins and memory sizes from 256 KB to 512 KB.

For more information on the new RX24T G Version, click here.

For more information on the new RX24U G Version, click here.

For more information on how the RX24T 32-bit MCU simplifies highly efficient control and sensorless vector control of multiple motors with a single chip, click here. 




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