The **M3H33FCD-R** belongs to the **M3H Group** of the TXZ+™ Family Advanced Series, manufactured by **Toshiba**. This is a high-performance 32-bit microcontroller based on the ARM® Cortex®-M3 core. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Technical Specifications The M3H series is designed for motor control, industrial equipment, and consumer electronics requiring high-speed data processing. | Parameter | Specification | | :--- | :--- | | **Core** | ARM® Cortex®-M3 | | **Max Operating Frequency** | 120 MHz | | **Flash Memory** | 512 KB | | **RAM** | 64 KB | | **Operating Voltage** | 2.7V to 5.5V (Single Power Supply) | | **Package Type** | LQFP100 (14mm x 14mm, 0.5mm pitch) | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Key Peripheral Modules The "FCD" variant is equipped with specific peripherals optimized for analog-to-digital conversion and motor feedback. * **A/D Converter (ADC):** * Features high-speed 12-bit ADC units (approx. 1.5 µs conversion time). * Multiple channels supporting simultaneous sampling for motor current sensing. * **Timer Functions:** * **T32A:** 32-bit Timer Event Counter. * **Advanced Programmable Motor Control (A-PMD):** Specifically designed for 3-phase inverter control with dead-time insertion. * **Communication Interfaces:** * UART / I2C / SIO (Serial Input/Output). * TSPI (Toshiba Serial Peripheral Interface). * **Safety Features:** * Clock Gear (for power saving). * Hardware CRC engine for memory integrity checks. * Watchdog Timer (WDT). --- ### 3. Part Number Nomenclature Understanding the code **M3H33FCD-R**: | Code | Meaning | | :--- | :--- | | **M3H** | Group Name (Cortex-M3 High-speed) | | **3** | Device Classification (Functional subset) | | **3** | Pin Count (100 pins) | | **FC** | Flash Memory Capacity (512 KB) | | **D** | Specific Package/Feature Variant | | **-R** | Packaging Detail (typically Tape & Reel) | --- ### 4. Typical Applications * **Home Appliances:** Washing machines, air conditioners (inverter control). * **Industrial:** AC Servos, PLC (Programmable Logic Controllers). * **Office Automation:** Printers and multi-function copiers. ---