The **M24C01-RBN3TG** is a specific model of Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by STMicroelectronics. It is widely used for non-volatile data storage in consumer electronics and industrial applications. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes) | | **Organization** | 128 x 8 bits | | **Interface** | I²C (Inter-Integrated Circuit) | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Operating Voltage** | 1.8V to 5.5V | | **Package Type** | PDIP8 (Plastic Dual In-line Package, 8 pins) | | **Temperature Range** | -40°C to +85°C | | **Write Cycles** | 1 Million (Endurance) | | **Data Retention** | 40 Years | --- ### 2. Functional Description The device operates as a slave on the I²C bus. It is organized as a single block of 128 bytes. #### Pin Configuration (PDIP8) 1. **E0, E1, E2:** Chip Enable inputs. These are used to set the hardware address of the device, allowing multiple EEPROMs on the same I²C bus. 2. **VSS:** Ground. 3. **SDA:** Serial Data. Bi-directional pin used to transfer data in and out. 4. **SCL:** Serial Clock. Used to synchronize data transfer. 5. **WC (Write Control):** A hardware protection pin. If connected to $V_{CC}$, write operations are inhibited (read-only mode). If connected to $V_{SS}$, write operations are allowed. 6. **VCC:** Power Supply. --- ### 3. Part Number Breakdown: M24C01-RBN3TG Understanding the suffix codes is critical for identifying the specific physical and electrical characteristics: | Code | Meaning | | :--- | :--- | | **M24** | I²C Serial Access EEPROM family | | **C01** | 1 Kbit Capacity | | **-R** | Operating Voltage: 1.8V to 5.5V | | **BN** | Package: PDIP8 (0.30 inch width) | | **3** | Temperature Range: -40°C to +125°C (Note: often indicates automotive or high-temp industrial) | | **TG** | Packing: Tape & Reel / Green (RoHS compliant) | --- ### 4. Typical Applications * **Parameter Storage:** Storing calibration data, user settings, or device configuration. * **Identification:** Storing serial numbers or MAC addresses. * **Data Logging:** Small-scale event logging where data must be preserved during power loss.