The **M3H43FBG-R** belongs to the **M3H Group** of the TXZ+™ Family Advanced Series, manufactured by **Toshiba**. This specific part is a high-performance 32-bit microcontroller based on the **ARM® Cortex®-M3** core. --- ## 1. Core Technical Specifications The M3H43FBG-R is designed for motor control, industrial equipment, and home appliances. | Feature | Specification | | :--- | :--- | | **Core** | ARM® Cortex®-M3 | | **Maximum Frequency** | 80 MHz | | **Flash Memory** | 128 KB | | **RAM** | 16 KB | | **Operating Voltage** | 2.7V to 5.5V | | **Package Type** | LQFP64 (10mm x 10mm) | | **Operating Temperature** | -40°C to 85°C | --- ## 2. Key Peripheral Modules This microcontroller integrates several hardware blocks designed for precision and efficiency: ### A. Analog Functions * **ADC (Analog-to-Digital Converter):** Features a high-speed 12-bit ADC with up to 12 channels. It includes a sample-and-hold circuit capable of 1.0 $\mu$s conversion times. * **DAC (Digital-to-Analog Converter):** 8-bit DAC (2 channels) for signal generation. ### B. Timer & Control Units * **T32A (32-bit Timer Event Counter):** Supports PWM output, PPG output, and quadrature encoder input, making it ideal for motor position sensing. * **A-PMD (Advanced Programmable Motor Control):** A dedicated hardware block that simplifies 3-phase inverter control for brushless DC motors (BLDC). ### C. Communication Interfaces * **UART/SIO:** Up to 4 channels for serial communication. * **I2C:** 2 channels (supports Multi-master). * **TSPI (Toshiba Serial Peripheral Interface):** 2 channels with high-speed data transfer. --- ## 3. Specialized Features 1. **Self-Diagnosis Functions:** It incorporates hardware functional safety features (IEC 60730 compliant) to detect RAM errors, Flash checksum failures, and clock abnormalities. 2. **Low Power Management:** Supports multiple power-saving modes (IDLE, STOP1, STOP2) to reduce consumption in battery-operated or standby-heavy applications. 3. **Data Debugging:** Integrated SWD (Serial Wire Debug) interface for real-time debugging and programming. --- ## 4. Part Number Decoder (M3H43FBG-R) * **M3H:** Group name (ARM Cortex-M3 / High speed). * **4:** Pin count (4 = 64 pins). * **3:** Series identifier. * **F:** Flash memory size (F = 128KB). * **B:** RAM size / specific variation. * **G:** Package type (G = LQFP). * **-R:** Packing format (usually refers to Tape and Reel).