The **M24C01-RBN6TP** is a specific model of Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by **STMicroelectronics**. It is commonly used for storing small amounts of non-volatile data, such as configuration settings, device IDs, or calibration constants. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 x 8 bits) | | **Interface** | I²C (Two-Wire Serial Interface) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | PDIP8 (Plastic Dual-In-Line Package) | | **Temperature Range** | -40°C to +85°C | | **Write Cycles** | 4 Million cycles (Endurance) | | **Data Retention** | 200 Years | --- ### 2. Detailed Pinout Description The device typically follows the standard 8-pin layout for I²C EEPROMs: | Pin Number | Name | Function | | :--- | :--- | :--- | | 1, 2, 3 | E0, E1, E2 | Chip Enable inputs (used to set the device I²C address) | | 4 | VSS | Ground (0V) | | 5 | SDA | Serial Data (Bidirectional) | | 6 | SCL | Serial Clock (Input) | | 7 | WC | Write Control (Hardwire to VSS to allow writes) | | 8 | VCC | Supply Voltage | --- ### 3. Functional Features * **Byte and Page Write:** Supports writing a single byte or a page of up to 16 bytes. * **Write Protection:** The `WC` pin acts as a hardware write protect. If tied to $V_{CC}$, the memory becomes read-only, protecting data from accidental corruption. * **Low Power Consumption:** Optimized for battery-operated devices, with very low standby current. * **I²C Addressing:** Since it has three chip enable pins (E0, E1, E2), up to eight M24C01 devices can be connected to the same I²C bus. --- ### 4. Implementation Example (C++) The following is a basic logic snippet for writing a byte to the M24C01 using an Arduino-style Wire library: ```cpp #include #define EEPROM_ADDR 0x50 // Base I2C address for M24C01 void writeEEPROM(int address, byte val) { Wire.beginTransmission(EEPROM_ADDR); Wire.write(address); // Memory location (0-127) Wire.write(val); // Data to store Wire.endTransmission(); delay(5); // Required write cycle time } ```