The **M3H22TCG-R** belongs to the **M3H Group** of the Toshiba **TXZ+™ Family Advanced Series**. This is a high-performance 32-bit microcontroller based on the ARM® Cortex®-M3 core, specifically designed for motor control, industrial equipment, and home appliances. --- ### 1. Core Specifications The internal architecture is optimized for real-time processing and low power consumption. | Feature | Specification | | :--- | :--- | | **Core** | ARM® Cortex®-M3 | | **Max Operating Frequency** | 120 MHz | | **Operating Voltage** | 2.7V to 5.5V (Single supply) | | **Flash Memory** | 128 KB | | **RAM** | 16 KB (with Parity) | | **Data Flash** | 32 KB (Rewritable 100,000 times) | --- ### 2. Key Electronic Components & Peripherals The "TCG" designation in the part number refers to specific packaging and pin configurations. Below are the critical integrated electronic blocks: #### A. Analog-to-Digital Converter (ADC) * **Resolution:** 12-bit. * **Speed:** High-speed conversion (approx. 1.5 μs). * **Purpose:** Crucial for sensing current and voltage in motor control loops. #### B. Motor Control Timer (A-PMD) * **Advanced Programmable Motor Control Circuit:** Supports 3-phase PWM output. * **Dead Time Control:** Integrated hardware to prevent short circuits in power stages. * **Emergency Stop:** Includes a dedicated input to shut down PWM signals during overcurrent events. #### C. Communication Interfaces The chip integrates several serial communication protocols to interface with other sensors or master controllers: * **UART:** 3 Channels. * **I2C:** 2 Channels. * **TSPI:** 2 Channels (High-speed Serial Peripheral Interface). #### D. Safety & Reliability Features * **ECC (Error Correction Code):** For Flash memory. * **RAM Parity:** Detects memory errors. * **LVD (Low Voltage Detection):** Monitors power supply stability. * **Watchdog Timer:** Prevents software hang-ups. --- ### 3. Physical & Package Information * **Package Type:** LQFP64 (10mm x 10mm). * **Pin Count:** 64 pins. * **Temperature Range:** -40°C to +85°C (Standard industrial grade). --- ### 4. Part Number Breakdown Understanding the nomenclature helps identify the exact electronic capabilities: * **M3H:** ARM Cortex-M3 High-speed Group. * **2:** Indicates specific peripheral set/feature scale. * **2:** Flash Memory capacity (128KB). * **T:** Package type (LQFP). * **C:** Pin count (64-pin). * **G:** Function/Grade code. * **-R:** Taping/Reel packaging. ---