The **M24C02-RMB3TP/G** is a specific variant of the M24C02 series, which is a 2-Kbit serial I2C bus EEPROM (Electrically Erasable Programmable Memory). This component is widely used for storing small amounts of configuration data, calibration parameters, or device IDs. --- ## Technical Specifications | Parameter | Details | | :--- | :--- | | **Memory Size** | 2 Kbit (256 x 8 bits) | | **Interface** | I2C (Inter-Integrated Circuit) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Clock Frequency** | Up to 400 kHz (Fast Mode) | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Operating Temperature** | -40°C to +125°C | | **Write Cycles** | More than 4 million cycles | | **Data Retention** | Over 200 years | --- ## Key Features ### 1. I2C Interface Protocol The device operates as a slave on the I2C bus. It uses a 2-wire interface: * **SCL (Serial Clock):** Used to synchronize data transfers. * **SDA (Serial Data):** A bidirectional line for sending/receiving data. ### 2. Write Protection It includes a **Hardware Write Control (WC)** pin. * If `WC` is high, the top half of the memory is protected (in some modes) or the entire memory is write-protected, depending on the specific wiring, preventing accidental data overwrites. ### 3. Page Write Mode Instead of writing one byte at a time, this chip supports a **16-byte Page Write** mode. This allows up to 16 bytes to be written in a single write cycle (typically 5ms), significantly improving data throughput. ### 4. Low Power Consumption The "R" in the part number indicates a specific low-voltage range (1.8V to 5.5V), making it ideal for battery-powered handheld devices. --- ## Part Number Breakdown (M24C02-RMB3TP/G) | Suffix | Meaning | | :--- | :--- | | **M24** | I2C Serial Access EEPROM | | **C02** | 2 Kbit Capacity | | **-R** | Operating Voltage: 1.8V to 5.5V | | **MB** | Package: UFDFPN8 (2x3 mm) | | **3** | Temperature Range: -40 to +125 °C | | **TP** | Packing: Tape & Reel | | **/G** | Process technology: ECOPACK2 (RoHS compliant/Lead-free) | --- ## Typical Application Circuit To interface this with a microcontroller (like an Arduino or STM32), the following connections are standard: ```c /* Standard I2C Wiring */ [VCC] --- Pull-up Resistor (4.7k) --- [SDA] [VCC] --- Pull-up Resistor (4.7k) --- [SCL] [GND] ------------------------------- [VSS] [VCC] ------------------------------- [VCC] [GND] ------------------------------- [WC] (To enable writing) ```