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Renesas Unveils RX72T MCUs for Motor Control in Industrial Robots

Renesas Electronics has unveiled the RX72T Group of 32-bit motor control microcontrollers (MCUs) with dedicated hardware accelerator IP to perform the complex, high-speed computations required for motor control in robots and other industrial equipment.

Renesas RX72T MCUs

The RX72T Group delivers superior performance, achieving an 1160 CoreMark score as measured by EEMBC Benchmarks (Note 1) – the highest level for a 5V MCU operating at 200 MHz.

Key Features of the RX72T Group of MCUs

  • RXv3 Core 200 MHz operation (5.8 CoreMark/MHz)
  • 2.7 to 5.5 V operation
  • Operating Temperature -40 to 105 °C
  • Program Flash up to 1 MB, SRAM up to 128 KB
  • Dedicated accelerator
    • RXv3 register bank save function
    • Arithmetic unit for trigonometric functions
  • Enhanced Analog
    • 12-bit A/D Converter x 30 channels for 3 units , 12-bit D/A Converter x 2 channels
    • 6-channels of Comparators and 6-channels of Pseudo-Differential PGA
  • 200 MHz PWM
    • 4 channels for 3-phase complementary switching, 2 channels for 5-phase complementary switching, 10 channels for single-phase complementary switching
    • 4-channel high-resolution PWM enables minimum 195 ps timing adjustment
  • Trusted Secure IP Lite (AES/TRNG)

“The RX72T Group brings leading performance to our extensive lineup of MCUs optimized for industrial robotics and motor control, with built-in IP, safety and security functions, and advanced control,” said Akira Denda, Vice President, Industrial Automation Business Division, Renesas Electronics Corporation. “The new MCU group extends an easy migration path across the RX family that creates new possibilities for extremely low-cost designs in compact industrial robots, and we are excited to accelerate the deployment of these applications to improve manufacturing efficiencies in industrial environments.”

The RX72T MCUs include dedicated accelerator hardware that enables the high-speed position control and speed control calculations required for implementing servo motor control in compact industrial robots. This allows the current control loop calculation to be performed in less than 1.5 µs providing a new option for users to independently develop servo systems where previously they only had the option of purchasing existing servo systems.

Customers working with Renesas’ Failure Detection e-AI Solutions for motors to improve production and productivity can pair these solutions with the new RX72T MCUs. The MCUs also feature hardware-based system failsafe functions and a hardware cryptography module that can be used to encrypt/decrypt communications data.

Renesas provides programs that implement sensorless vector control and encoder vector control. Renesas provides the Renesas Motor Workbench 2.0 for real-time debugging and an RX72T CPU card that supports the 24 V motor control evaluation kit.

With the new RX72T MCUs, Renesas offers system manufacturers an extensive lineup of 5V operation motor control MCUs with superlative software compatibility. This provides a smooth migration path from the new high-end MCUs out to the RX23T (40 MHz), RX24T (80 MHz), and RX66T (160 MHz) MCUs, offering design flexibility within the RX MCU environment. The RX72T Group is also fully compatible with the RX66T Group incorporating the RXv3 core.

Pricing and Availability

The MCUs will be available in mass production quantities beginning in Q4 2019. The 512 KB flash, 100-pin R5F572TFBDFP device will be priced at US$4.06 in 10,000-unit quantities. Additional pricing will vary based on memory and pin-count configuration.

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Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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