## Technical Overview: M24C08-RDS3T The **M24C08-RDS3T** is a specific variant of the 8-Kbit serial I2C Bus EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. It is widely used for non-volatile parameter storage in consumer electronics and industrial applications. --- ### 1. Key Technical Specifications The part number suffix **RDS3T** provides specific details regarding packaging and temperature range. | Feature | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1024 x 8 bits) | | **Interface** | I²C (Two-wire Serial) | | **Clock Frequency** | 400 kHz (Fast Mode) / 1 MHz (Fast Mode Plus) | | **Operating Voltage** | 1.8V to 5.5V | | **Package Type** | TSSOP8 (Thin Shrink Small Outline Package) | | **Temperature Range** | -40°C to +125°C (Automotive Grade 3) | | **Packing** | Tape & Reel ("T" suffix) | --- ### 2. Internal Architecture and Pinout The device is organized as 4 blocks of 256 bytes (4 x 256 x 8 bits). #### Pin Configuration (TSSOP8) 1. **E0, E1, E2:** Chip Enable inputs (Used to set the device address). 2. **VSS:** Ground. 3. **SDA:** Serial Data (Bidirectional). 4. **SCL:** Serial Clock. 5. **WC:** Write Control (Hardware protection). 6. **VCC:** Supply Voltage. --- ### 3. Core Functional Electronic Features #### A. Write Protection (WC Pin) The **WC (Write Control)** pin is a hardware safety feature: * If **WC is High (Vcc)**, the top half or the entire memory (depending on configuration) is write-protected. * If **WC is Low (Vss)**, the write operations are enabled. #### B. Page Write Buffer The device features a **16-byte page write** mode. This allows the controller to send up to 16 bytes of data in a single write cycle, significantly improving programming speed compared to byte-by-byte writing. #### C. Data Retention and Endurance * **Endurance:** More than 4 million write cycles. * **Data Retention:** Over 200 years (at room temperature). --- ### 4. Part Number Breakdown: M24C08-RDS3T | Code | Meaning | | :--- | :--- | | **M24** | I²C Serial Access EEPROM | | **C08** | 8 Kbit Capacity | | **-R** | 1.8V to 5.5V Operating Voltage | | **D** | High Reliability / Process Tech | | **S** | TSSOP8 Package | | **3** | Temperature Range: -40 to +125 °C | | **T** | Tape & Reel Packaging | --- ### 5. Common Applications * **Consumer Electronics:** Storing user settings in TVs or monitors. * **Automotive:** Calibration data and error logging (due to the -40 to 125°C range). * **Medical:** Device ID and usage statistics. * **Communication:** Storing configuration profiles in routers and switches. ---