The **M24C08-RMB3TP/W** is a specific variant of an Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by **STMicroelectronics**. It belongs to the M24C08 series, which is a standard choice for low-power, non-volatile data storage in consumer and industrial electronics. --- ### 1. General Specifications The device is organized as 1024 x 8 bits (8 Kbits) and utilizes the I²C protocol for data transfer. | Feature | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1,024 bytes) | | **Interface** | I²C (Two-Wire Serial) | | **Operating Voltage** | 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 Temp** | -40°C to +125°C | --- ### 2. Breakdown of the Part Number The suffix codes provide critical information regarding the physical and electrical characteristics: * **M24**: Standard I²C Serial Access EEPROM. * **C08**: Capacity (8 Kilobits). * **-R**: Operating voltage range (1.8V to 5.5V). * **MB**: Package code for **UFDFPN8** (2x3 mm). * **3**: Device grade (Temperature range -40°C to +125°C). * **TP**: Tape & Reel packaging. * **/W**: Indicates a process technology or specific wafer variation (often related to high-reliability or specific manufacturing lines). --- ### 3. Functional Pinout (UFDFPN8) The device typically follows the standard 8-pin EEPROM pinout logic: | Pin | Name | Description | | :--- | :--- | :--- | | 1-3 | E0, E1, E2 | Chip Enable (Address inputs) | | 4 | VSS | Ground | | 5 | SDA | Serial Data (Bi-directional) | | 6 | SCL | Serial Clock | | 7 | WC | Write Control (Hardware Write Protection) | | 8 | VCC | Supply Voltage | --- ### 4. Key Electronic Features * **Byte and Page Write:** Supports writing a single byte or a page of up to 16 bytes at once. * **Write Protection:** The **WC** pin can be tied to $V_{CC}$ to protect the entire memory contents from being overwritten. * **Data Retention:** Rated for over 40 years of data retention. * **Endurance:** Capable of more than 4 million write cycles per byte. * **Schmitt Triggers:** Inputs are filtered for noise suppression to ensure stable I²C communication. --- ### 5. Typical Application Circuit When integrating this part into a circuit, pull-up resistors are required on the SDA and SCL lines. ```c // Pseudo-code for I2C Address Structure // The M24C08 uses a 7-bit device address: 1010 + E2 + Page bits // Since it is 8Kbit, it uses 2 bits within the device address to select memory pages. Device_Address = 0xA0; // Base address (1010000 in binary + R/W bit) ```