The **M24C02-RMB6T/W** is a specific variant of the M24C02 series produced by STMicroelectronics. It is a 2-Kbit serial I²C bus EEPROM (Electrically Erasable Programmable Memory). --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Memory Size** | 2 Kbit (256 x 8 bits) | | **Interface** | I²C (Two-wire Serial) | | **Operating Voltage (Vcc)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) / 1 MHz (Fast Mode Plus) | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Operating Temperature** | -40°C to +85°C | | **Write Cycles (Endurance)** | 4 million write cycles | | **Data Retention** | 200 years | --- ### 2. Breakdown of the Part Number The suffix codes provide critical information regarding the packaging and specific features: * **M24C02**: Base part number for 2-Kbit I²C EEPROM. * **-R**: Indicates the operating voltage range (1.8V to 5.5V). * **MB**: Specifies the package type (UFDFPN8, 2x3 mm). * **6**: Temperature range grade (-40°C to +85°C). * **T**: Indicates Tape & Reel packing. * **W**: Refers to a specific manufacturing process or high-reliability variant (often associated with specific "Waterproof" or "Wafer" level processing in certain contexts, but primarily denotes the process technology in ST's line). --- ### 3. Functional Features #### A. Write Protection The device includes a **Write Control (WC)** pin. - When connected to Vcc, the memory contents are write-protected (read-only). - When connected to Vss (Ground), the entire memory is writable. #### B. Byte and Page Write The M24C02 supports both single-byte writes and Page Write operations. A "page" for this specific model consists of **16 bytes**. Writing a page is significantly faster than writing 16 individual bytes because it only requires one internal write cycle (~5ms). #### C. Device Addressing The I²C address for this device is typically `1010xxxR/W`. The three "x" bits correspond to the physical hardware address pins (E2, E1, E0), allowing up to eight M24C02 devices to be connected to the same I²C bus. --- ### 4. Typical Application Circuit In a standard electronic circuit, the connection usually follows this logic: ```cpp // Typical Pinout Mapping Pin 1-3: E0, E1, E2 (Address Inputs - connect to GND or Vcc) Pin 4: Vss (Ground) Pin 5: SDA (Serial Data - requires pull-up resistor) Pin 6: SCL (Serial Clock - requires pull-up resistor) Pin 7: WC (Write Control - connect to GND for write access) Pin 8: Vcc (Power Supply 1.8V - 5.5V) ```