## Technical Analysis of M24C08-RBN3TP/S The **M24C08-RBN3TP/S** is a specific variant of the M24C08 series manufactured by STMicroelectronics. It is an 8-Kbit serial I²C Bus EEPROM (Electrically Erasable Programmable Read-Only Memory). --- ### 1. Key Technical Specifications The part number suffix provides specific details regarding packaging, voltage, and temperature range. | Feature | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1024 x 8 bits) | | **Interface** | I²C (Two-Wire Serial) | | **Operating Voltage ($V_{CC}$)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | DIP8 (Plastic Dual-in-Line) | | **Temperature Range** | -40°C to +85°C (Industrial Grade) | | **Write Cycles** | 4 million cycles (typical) | | **Data Retention** | 200 years | --- ### 2. Part Number Breakdown Understanding the specific nomenclature for this device: * **M24**: I²C serial access EEPROM. * **C08**: 8 Kbit capacity. * **-R**: $V_{CC}$ range of 1.8V to 5.5V. * **BN**: DIP8 package (Plastic Dual-in-Line). * **3**: Device grade 3 (Temperature range -40°C to +125°C, though typically standard at -40°C to +85°C for R-suffix). * **TP/S**: Tape and reel packaging or specific ST manufacturing process/environmental standards. --- ### 3. Functional Pinout (DIP8) | Pin Number | Name | Function | | :--- | :--- | :--- | | 1, 2, 3 | E0, E1, E2 | Chip Enable (Used for device addressing) | | 4 | $V_{SS}$ | Ground | | 5 | SDA | Serial Data (Bidirectional) | | 6 | SCL | Serial Clock | | 7 | WC | Write Control (Hardware protection) | | 8 | $V_{CC}$ | Supply Voltage | --- ### 4. Key Operational Features #### I²C Protocol The device acts as a slave on the I²C bus. It uses a 7-bit device address. Because it is an 8-Kbit device, it is organized as 4 blocks of 256 bytes. The device address includes "page select" bits to navigate these blocks. #### Write Protection (WC Pin) The **Write Control (WC)** pin provides hardware data protection: * If **WC** is high ($V_{CC}$), the entire memory is write-protected. * If **WC** is low ($V_{SS}$), the write operations are enabled. #### Page Write The device supports a **16-byte page write** mode. This allows up to 16 bytes to be written in a single write cycle, significantly improving throughput compared to byte-by-byte writing. --- ### 5. Common Applications * **Consumer Electronics:** Storing user settings, calibration data, and volume levels. * **Industrial:** Parameter storage for sensors and controllers. * **Medical:** Device configuration and usage logs. * **Automotive:** (Note: Ensure the "3" grade meets specific AEC-Q100 requirements if used in vehicles).