The **M24C01-RBN3TP** is a specific type of Non-Volatile Memory (NVM) produced by STMicroelectronics. It belongs to the I²C EEPROM (Electrically Erasable Programmable Read-Only Memory) family. --- ## 1. Device Overview The M24C01-RBN3TP is a 1-Kbit serial EEPROM device organized as 128 x 8 bits. It is designed for low-power, low-voltage applications where small amounts of data (like configuration settings or serial numbers) need to be stored even when power is removed. ### Part Number Breakdown | Code | Meaning | Details | | :--- | :--- | :--- | | **M24** | Family | I²C Serial Access EEPROM | | **C01** | Density | 1 Kbit (128 Bytes) | | **-R** | Voltage Range | 1.8V to 5.5V (Low Voltage) | | **BN** | Package | PDIP8 (Plastic Dual In-line Package) | | **3** | Temperature | -40°C to +125°C (Automotive/Industrial grade) | | **TP** | Packing | Tape & Reel (though 'BN' usually implies tubes) | --- ## 2. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes) | | **Interface** | I²C (Two-wire serial interface) | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Write Cycle Time** | 5 ms (Maximum) | | **Data Retention** | 40 Years (Minimum) | | **Endurance** | 1 Million Write Cycles | --- ## 3. Pin Configuration (PDIP8) The device typically uses an 8-pin layout. Here is the functional description of the pins: | Pin Number | Name | Function | | :--- | :--- | :--- | | 1, 2, 3 | E0, E1, E2 | Chip Enable (Address inputs to select device) | | 4 | Vss | Ground | | 5 | SDA | Serial Data (Bidirectional) | | 6 | SCL | Serial Clock | | 7 | WC | Write Control (Hardware protection) | | 8 | Vcc | Supply Voltage | --- ## 4. Operational Features ### I²C Communication The device acts as a **Slave** on the I²C bus. It requires a **Master** (usually a microcontroller) to initiate data transfers and provide the clock signal. ### Write Protection (WC Pin) The Write Control (WC) pin is a hardware safety feature: * **If WC is High (Vcc):** The entire memory is protected; write instructions are ignored. * **If WC is Low (Vss):** The memory is writable. ### Page Write The M24C01 supports "Page Write," allowing up to **8 bytes** to be written in a single write cycle, which significantly improves data throughput compared to byte-by-byte writing. --- ## 5. Typical Applications * **Consumer Electronics:** Storing user preferences in TVs or smart appliances. * **Industrial:** Calibration data storage and parameter settings. * **Medical:** Storing serial numbers and usage logs in portable devices.