## M24C01-RBN3T: Electronic Component Overview The **M24C01-RBN3T** is a 1-Kbit serial I²C (Inter-Integrated Circuit) EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by **STMicroelectronics**. It is designed for low-power and low-voltage applications where small amounts of data need to be stored non-volatilely. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes x 8 bits) | | **Interface** | I²C (Two-wire serial) | | **Clock Frequency** | 400 kHz | | **Operating Voltage ($V_{CC}$)** | 1.8V to 5.5V | | **Write Cycle Time** | 5 ms (Maximum) | | **Endurance** | 4 Million write cycles | | **Data Retention** | 200 Years | | **Package Type** | PSSOP8 (TSSOP8) | --- ### 2. Functional Description The device operates as a **Slave** on the I²C bus. It is organized as 128 bytes of 8 bits each. The "R" in the part number specifically denotes the voltage range (1.8V to 5.5V), making it ideal for battery-powered devices. #### Core Features: * **Byte and Page Write:** Supports writing a single byte or a page of up to 16 bytes. * **Random and Sequential Read:** Data can be read starting from a specific address or sequentially across the entire memory. * **Write Protection (WP):** A hardware pin that allows the user to protect the entire memory contents from being overwritten. * **Schmitt Trigger Inputs:** Used for noise filtering on the SCL and SDA lines to ensure stable communication. --- ### 3. Pinout Configuration (TSSOP8) | Pin | Name | Type | Description | | :--- | :--- | :--- | :--- | | 1-3 | E0, E1, E2 | Input | Chip Enable (Address inputs to define the device ID) | | 4 | $V_{SS}$ | Power | Ground | | 5 | SDA | I/O | Serial Data (Bidirectional) | | 6 | SCL | Input | Serial Clock | | 7 | WC | Input | Write Control (Write Protect) | | 8 | $V_{CC}$ | Power | Supply Voltage | --- ### 4. Part Number Breakdown: M24C01-RBN3T * **M24**: I²C Serial Access EEPROM. * **C01**: 1 Kbit density. * **-R**: Operating voltage range of 1.8V to 5.5V. * **BN**: TSSOP8 package (Thin Shrink Small Outline Package). * **3**: Range 3 temperature ($ -40^{\circ}C$ to $+125^{\circ}C$). * **T**: Tape and Reel packaging. --- ### 5. Application Use Cases * **Parameter Storage:** Storing calibration data, user settings, or device configuration. * **Identification:** Storing serial numbers or MAC addresses. * **Consumer Electronics:** Used in smartwatches, medical sensors, and IoT modules due to its low power consumption.