The **M3H48TCG-R** belongs to the **TOSHIBA TXZ+ Family Advanced Series**, specifically the **M3H Group**. This is a high-performance 32-bit microcontroller based on the ARM® Cortex®-M3 core, designed primarily for motor control and consumer electronics. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Core** | ARM® Cortex®-M3 | | **Max Operating Frequency** | 120 MHz | | **Flash Memory** | 128 KB | | **RAM** | 16 KB | | **Package** | LQFP48 (7mm x 7mm, 0.5mm pitch) | | **Operating Voltage** | 2.7V to 5.5V (Single supply) | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Functional Blocks and Features The "TCG" designation in the part number indicates specific pin-count and memory configurations. Below are the internal electronic components that make this MCU powerful: #### A. Analog Components * **12-bit ADC:** High-speed Analog-to-Digital converter (approx. 1.5μs conversion time) used for sensor feedback. * **DAC:** 8-bit Digital-to-Analog converter for signal generation. #### B. Motor Control & Timers * **A-PMD (Advanced Programmable Motor Control):** A specialized hardware block that handles 3-phase PWM output, dead-time insertion, and emergency stop synchronization. * **A-ENC (Advanced Encoder Input):** Processes signals from incremental encoders for precise motor position tracking. #### C. Communication Interfaces * **UART/SIO:** Up to 4 channels for serial communication. * **I2C:** 2 channels for peripheral interfacing. * **TSPI:** 3 channels for high-speed serial peripheral interface. --- ### 3. Power Management This chip is designed for efficiency and includes several power-saving modes: * **IDLE Mode:** Stops the CPU clock while peripherals remain active. * **STOP Mode:** Stops all internal oscillations for minimum power consumption. * **Safety Features:** Includes a Power-On Reset (POR) and a Voltage Detection Circuit (LVD). --- ### 4. Part Number Breakdown To better understand the specific model: | Code Segment | Meaning | | :--- | :--- | | **M3H** | Group Name (Cortex-M3, High-performance) | | **4** | Number of pins (48 pins) | | **8** | Flash Memory size (128 KB) | | **T** | Package type (LQFP) | | **CG** | Specific sub-series / Function code | | **-R** | Tape and Reel packaging | ---