The **M24C01-RDS3TG/W** is a specific variant of a serial EEPROM (Electrically Erasable Programmable Memory) chip manufactured by **STMicroelectronics**. It is commonly used for parameter storage in consumer electronics, industrial sensors, and medical devices. --- ## 1. Technical Specifications Below is a summary of the core electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 Bytes organized as 128 x 8) | | **Interface** | I²C (Two-Wire Serial) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | TSSOP8 (Thin Shrink Small Outline Package) | | **Operating Temp** | -40°C to +125°C | | **Write Cycles** | 1 Million (Typical) | | **Data Retention** | 40 Years (Minimum) | --- ## 2. Pin Configuration (TSSOP8) The device typically follows the standard I²C EEPROM pinout: 1. **E0, E1, E2:** Address inputs (used to set the device hardware address). 2. **Vss:** Ground. 3. **SDA:** Serial Data (Bidirectional). 4. **SCL:** Serial Clock (Input). 5. **WC:** Write Control (Hardware Write Protection). 6. **Vcc:** Power Supply. --- ## 3. Part Number Breakdown The suffix code provides details on the specific packaging and environmental standards: * **M24C01:** The base series (I²C EEPROM, 1 Kbit). * **R:** Operating voltage range (1.8V to 5.5V). * **DS:** Indicates the package (TSSOP8, 3mm width). * **3:** Indicates the temperature grade (Grade 3: -40 to +125 °C). * **TG:** Tape & Reel packing. * **W:** Indicates a specific "Process" or "Wafer" technology detail (often implying High-Reliability or Halogen-free). --- ## 4. Key Electronic Features ### I²C Communication The chip operates as a "Slave" on the I²C bus. It requires a start condition, an 8-bit device select code (including the read/write bit), and an acknowledgment bit (ACK) for every byte transferred. ### Write Protection (WC Pin) * If the **WC** pin is connected to **Vcc**, the entire memory is write-protected (Read-only). * If the **WC** pin is connected to **Vss** (Ground), the memory is fully writable. ### Byte and Page Write The device supports both **Byte Write** (writing one byte at a time) and **Page Write** (writing up to 16 bytes in a single sequence), which improves efficiency during large data updates. ---