Toshiba Electronic Devices & Storage Corporation has started mass production of the TXZ+ Family Entry-Class M4H Group, standard microcontrollers with an Arm Cortex-M4 core and floating-point unit (FPU), for small-scale system control in consumer products and industrial equipment. The microcontrollers operate at speeds up to 120MHz.
Toshiba said system-control microcontrollers need to provide real-time performance and stable operation as consumer products and industrial equipment become more sophisticated and diversified. Some small-scale applications require essential control functions that can be applied to existing systems and new designs, rather than highly advanced functions optimized for specific applications.
The M4H group supports a supply voltage range of 2.7V to 5.5V and integrates a high-speed oscillator with ±1% accuracy. The microcontrollers include 256KB of code flash memory and 18KB of RAM. Key features include a 12-bit analog-to-digital converter (ADC), timers, UART, SPI, I²C, direct memory access (DMA), an advanced programmable motor control circuit (A-PMD) for brushless DC motor control, and self-diagnosis functions for functional safety.
The three listed models are TMPM4H4FYUG, in an LQFP64 package measuring 10mm×10mm with 0.5mm pitch; TMPM4H2FYDUG, in an LQFP48 package measuring 7mm×7mm with 0.5mm pitch; and TMPM4H1FYUG, in an LQFP44 package measuring 10mm×10mm with 0.8mm pitch.
Toshiba provides product documentation, sample software, and driver software for peripheral functions. It plans to progressively roll out evaluation boards and development environments with Arm ecosystem partners, and says it will continue to expand design support resources and its microcontroller lineup for system control.
