Toshiba Electronic Devices & Storage Corporation has announced the TXZ+ Family Entry-Class M4H Group of standard microcontrollers featuring an Arm® Cortex-M4 core with floating-point unit (FPU). Engineering samples of the new devices are now available.
The microcontrollers are designed for small-scale system control applications in consumer products, such as air conditioners and washing machines, and in industrial equipment, including multifunction printers and factory automation systems.
The M4H Group devices operate at a maximum frequency of 120 MHz and support a supply voltage range of 2.7 V to 5.5 V. They integrate a high-speed oscillator with ±1% accuracy, reducing the need for external components. They also include essential peripheral functions for system control, such as a 12-bit analog-to-digital converter (ADC), timers, UART, SPI, I²C, and DMA controller. An advanced programmable motor driver (A-PMD) supports brushless DC motor control.
Main Specifications:
- CPU Core: Arm Cortex-M4 with FPU and MPU
- Internal Memory: 256 KB code flash memory (up to 100,000 program/erase cycles), 18 KB RAM with parity
- Operating Voltage: 2.7 V to 5.5 V, single supply
- Packages: LQFP64 (10 mm × 10 mm, 0.5 mm pitch), LQFP48 (7 mm × 7 mm, 0.5 mm pitch)
Part Numbers and Key Differences:
- TMPM4H4FYUG: 51 I/O pins, 11 external interrupt factors, 32-channel DMA, 4 UART channels, 4 TSPI channels, 12 ADC inputs
- TMPM4H2FYDUG: 37 I/O pins, 10 external interrupt factors, 27-channel DMA, 3 UART channels, 2 TSPI channels, 10 ADC inputs
- TMPM4H1FYUG: 33 I/O pins, 9 external interrupt factors, 3 UART channels, 9 ADC inputs
Additional features include self-diagnosis functions for functional safety, CRC calculation circuit, watchdog timer, voltage detection circuit, and oscillation frequency detector. Debug interfaces support JTAG/SW and TRACE.
Toshiba is providing engineering samples along with starter kits, sample software, CMSIS-compliant drivers, and support for major integrated development environments (IDEs) to facilitate device evaluation and application development.
