Toshiba Expands Portfolio of Low-Power Performance-Enhanced 32-Bit Microcontrollers Using Arm® Cortex®-M Technology

Toshiba— (“Toshiba”) has strengthened its presence in the low-power microcontroller market through a greater breadth of product groups within its TXZ+™ family.

Optimized for motor control systems, domestic appliances, human machine interfaces and connected IoT infrastructure, these highly integrated devices are based on Arm^® Cortex^®-M processor cores. They leverage a 40nm CMOS process that exhibits reduced operating and standby current levels. This allows them to deliver superior performance alongside elevated energy efficiency.

With a broad array of different flash memory capacity options (up to 2 MB, with 100k write cycle endurance), plus various package options available, customers can benefit from the convenience of a scalable platform solution. This will allow them to address different requirements while reducing the associated engineering effort and maximizing software re-use.

Each microcontroller features a multi-channel 12-bit analog-to-digital converter (ADC). Among the different interfaces that may be specified are CAN, Ethernet and USB. Security mechanisms such as secure boot and access authentication, plus IEC60730 Class B-compliant functional safety features are all included.

Devices in the new M3H group are based on the Arm^® Cortex^®-M3 processor core. Operating at up to 120 MHz (150 DMIPS), they are supplied in LQFP packages. They each feature 512 KB code flash, 32 KB data flash and 4 KB of separated user flash, complemented with 12- to 21 12-bit ADC, two 8-bit digital-to-analog converters (DACs), and many GPIOs. Other highlights include advanced programmable motor driver (A-PMD) functionality and built-in LCD driving capabilities.

Devices in the M4K and M4M groups are based on an Arm Cortex-M4 processor core with floating point unit (FPU). Operating up to 160 MHz (203 DMIPS), they feature up to 256 KB code flash, 32 KB data flash and 4 KB of user flash. Each of these devices include Toshiba’s unique motor control Vector Engine IP, a hybrid hardware accelerator and flexible software approach, which enables sensorless, which enables sensorless Ffield Oriented Control (FOC) of up to three motors via a single microcontroller device across a broad field of brushless motor applications. M4K and M4M devices are supplied in LQFP packages. The microcontrollers of the M4M group include an additional CAN controller enabling direct connectivity to the commonly used industrial field bus.

M4G and M4N group devices are optimized for complex data processing. The integrated Arm Cortex-M4 processor core with FPU operates at up to 200 MHz (254 DMIPS). The devices provide integrated code flash of up to 2 MB and a separated 32 KB data flash. Featuring A-PMD IP which also includes motor control function, they are available in both LQFP and BGA type packages – thereby offering the best fit for both industrial and consumer applications. The M4N group devices additionally include a USB 2.0 Full-Speed OTG controller with integrated PHY (up to 2 ports), a 10/100 Ethernet MAC and a CAN controller.