The **M3H58TAD-R** is a specific part number belonging to the **M3H Group** of the **TXZ+™ Family Advanced Class** microcontrollers, manufactured by **Toshiba Electronic Devices & Storage Corporation**. These are high-performance MCUs based on the Arm® Cortex®-M3 core. --- ### 1. Key Technical Specifications The "M3H" series is designed for motor control, consumer electronics, and industrial equipment. | Feature | Specification | | :--- | :--- | | **Core** | Arm® Cortex®-M3 | | **Maximum Frequency** | 120 MHz | | **Flash Memory** | 256 KB to 512 KB (Typical for the series) | | **SRAM** | 32 KB to 64 KB | | **Operating Voltage** | 2.7V to 5.5V | | **Package** | LQFP (Low-profile Quad Flat Package) | --- ### 2. Specialized Internal Modules The M3H58TAD-R is equipped with several hardware accelerators and peripherals designed for precision control: * **A-PMD (Advanced Programmable Motor Driver):** A dedicated hardware block that controls 3-phase motors, supporting PWM signal generation and dead-time insertion. * **A-ENC (Advanced Encoder Input Circuit):** Handles high-speed feedback from motor encoders (incremental or absolute). * **A-ADC (Advanced Analog-to-Digital Converter):** A high-speed 12-bit ADC capable of synchronizing with the motor control timers for precise current sensing. * **Communication Interfaces:** Includes UART, I2C, and TSPI (Toshiba Serial Peripheral Interface). --- ### 3. Part Number Breakdown (Typical Toshiba Naming) While specific internal datasheets are required for exact suffixes, the code generally breaks down as follows: | Segment | Meaning | | :--- | :--- | | **M3H** | Series Identifier (Cortex-M3 High-speed) | | **58** | Pin count / Flash memory density indicator | | **T** | Temperature range (Usually Industrial) | | **AD** | Specific Revision/Feature set | | **-R** | Tape and Reel packaging | --- ### 4. Common Applications * **Home Appliances:** Washing machines, air conditioners (inverter control). * **Industrial:** Small-to-medium power factory automation tools. * **Power Management:** Digital power supplies and battery management systems.