## Technical Overview of M24C08-RDS3TG The **M24C08-RDS3TG** is a high-performance 8-Kbit serial I²C bus EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. It is designed for low-power applications and is widely used for parameter storage in consumer electronics and industrial devices. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 8 Kbits (1024 x 8 bits) | | **Interface** | I²C (Two-Wire Serial) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) or 1 MHz (Fast Mode Plus) | | **Package Type** | TSSOP8 (Thin Shrink Small Outline Package) | | **Temperature Range** | -40°C to +125°C | | **Endurance** | 4 Million Write Cycles | | **Data Retention** | 200 Years | --- ### 2. Functional Electronic Features #### I²C Serial Interface The device operates as a slave on the I²C bus. It requires only two signals to operate: * **SCL (Serial Clock):** Used to synchronize data movements. * **SDA (Serial Data):** A bidirectional line used to transfer addresses and data. #### Memory Organization The 8 Kbits are organized as **four blocks of 256 bytes**. Because the I²C standard uses 7-bit addressing, the internal memory blocks are accessed using specific device select codes, allowing the chip to behave like four separate 2-Kbit entities on the bus. #### Write Protection (WC Pin) The hardware includes a **Write Control (WC)** pin. * If **WC is High**, the entire memory is write-protected (read-only mode). * If **WC is Low**, the memory is fully rewritable. --- ### 3. Pin Configuration (TSSOP8) | Pin Number | Name | Description | | :--- | :--- | :--- | | 1, 2, 3 | NC / E2 | Not Connected / Chip Enable (depending on variant) | | 4 | VSS | Ground | | 5 | SDA | Serial Data | | 6 | SCL | Serial Clock | | 7 | WC | Write Control (Hardware Protection) | | 8 | VCC | Supply Voltage | --- ### 4. Part Number Breakdown: M24C08-RDS3TG To understand the specific electronic variant, we decode the suffix: * **M24**: I²C Serial Access EEPROM. * **C08**: 8 Kbit capacity. * **R**: 1.8V to 5.5V operating voltage range. * **DS**: TSSOP8 package (ECOPACK2 compliant). * **3**: Device grade 3 (Operating temperature -40 to +125°C). * **T**: Tape and Reel packing. * **G**: Green / RoHS compliant. --- ### 5. Common Applications * **Consumer Electronics:** Storing user preferences in TVs or monitors. * **Industrial:** Calibration data and configuration settings for sensors. * **Medical:** History logging in portable diagnostic tools.