The **M24C01-RMB3TG/G** is a specific variant of the M24C01 series of I²C-compatible Electrically Erasable Programmable Read-Only Memory (EEPROM). It is manufactured by STMicroelectronics and is designed for low-power, low-voltage applications. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes x 8 bits) | | **Interface** | I²C (Inter-Integrated Circuit) | | **Supply Voltage ($V_{CC}$)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Operating Temp** | -40°C to +125°C | | **Write Cycles** | 4 Million (approximate) | | **Data Retention** | 200 Years | --- ### 2. Functional Components * **Memory Array:** Organized as 128 bytes. It uses a "Page Write" method, allowing up to 8 bytes to be written in a single instruction cycle. * **I²C Interface Logic:** Manages the Serial Data (SDA) and Serial Clock (SCL) signals. It includes a slave address decoder and an acknowledgment (ACK) generator. * **Write Protection:** Includes hardware and software write protection features to prevent accidental data corruption. * **Internal Address Register:** Keeps track of the memory location currently being accessed, with auto-increment functionality for sequential reads. --- ### 3. Pin Configuration (UFDFPN8) | Pin Name | Function | Description | | :--- | :--- | :--- | | **E0, E1, E2** | Chip Enable | Used to set the device hardware address. | | **SDA** | Serial Data | Bidirectional pin used to transfer data in and out. | | **SCL** | Serial Clock | Input used to synchronize data movements. | | **WC** | Write Control | Hardware write protection pin (High = Protected). | | **Vcc / Vss** | Power | Supply voltage and Ground. | --- ### 4. Part Number Breakdown (Decoding the Suffix) The suffix **RMB3TG/G** provides specific manufacturing details: * **R:** Operating voltage range (1.8V to 5.5V). * **MB:** Package code for UFDFPN8 (2x3 mm). * **3:** Temperature range (-40 to +125 °C). * **TG:** Tape & Reel packaging. * **/G:** STMicroelectronics internal code for specific manufacturing processes or "Green" (Halogen-free) compliance. --- ### 5. Common Applications * **Parameter Storage:** Storing calibration data or user settings in consumer electronics. * **ID/Tracking:** Serial numbers and manufacture dates in industrial modules. * **IoT Devices:** Low-power data logging where memory requirements are minimal.