The **M24C01-RMB3TP** is a specific variant of the M24C01 series, which is a 1-Kbit serial I2C bus EEPROM (Electrically Erasable Programmable Read-Only Memory). It is widely used for storing small amounts of non-volatile data, such as configuration settings, device IDs, or calibration data. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes x 8 bits) | | **Interface** | I2C (Two-Wire) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Temperature Range** | -40°C to +125°C | | **Write Cycle Time** | 5 ms (Maximum) | | **Endurance** | 4 Million write cycles | | **Data Retention** | 200 Years | --- ### 2. Functional Characteristics * **I2C Protocol:** It operates as a slave device on the I2C bus. It uses a 7-bit device address to communicate with a microcontroller (Master). * **Byte and Page Write:** Supports writing a single byte at a time or a "Page Write" of up to 16 bytes, which improves efficiency when writing larger blocks of data. * **Hardware Write Protection:** Includes a Write Control (WC) pin. If this pin is tied to Vcc, the entire memory becomes write-protected, preventing accidental data corruption. * **Low Power Consumption:** Designed for battery-operated devices, with very low active current and standby current (typically < 1 µA). --- ### 3. Part Number Breakdown: `M24C01-RMB3TP` The suffix provides specific details about the physical and electrical configuration: | Suffix | Meaning | | :--- | :--- | | **M24** | I2C Serial Access EEPROM | | **C01** | 1 Kbit Capacity | | **-R** | Operating Voltage: 1.8V to 5.5V | | **MB** | Package: UFDFPN8 (2x3 mm) | | **3** | Temperature Range: -40 to +125 °C (Automotive grade) | | **TP** | Packing: Tape and Reel | --- ### 4. Typical Application Circuit In a standard circuit, the device requires pull-up resistors on the SDA and SCL lines. ```cpp // Logic Representation of Connections VCC --> 1.8V - 5.5V GND --> Ground SDA --> Microcontroller I/O (Data) with 4.7k Pull-up SCL --> Microcontroller I/O (Clock) with 4.7k Pull-up WC --> GND (to enable writing) or VCC (to protect) ```