### Overview of M24C08-RDS6T The **M24C08-RDS6T** is a specific variant of an 8-Kbit serial I2C bus EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. It is designed for low-power, low-voltage applications. --- ### Technical Specifications Below are the primary electronic characteristics of the component: | Feature | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1024 x 8 bits) | | **Memory Architecture** | 4 blocks of 256 bytes | | **Interface** | I2C (Two-Wire Serial) | | **Operating Voltage (Vcc)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Package Type** | TSSOP8 (Thin Shrink Small Outline Package) | | **Temperature Range** | -40°C to +85°C (Industrial Grade) | | **Write Cycles** | More than 1 million cycles | | **Data Retention** | 40 years | --- ### Key Pin Functions (TSSOP8) The device uses 8 pins to facilitate power, communication, and hardware protection. 1. **E1, E2 (Address Inputs):** Used to set the hardware address of the device. Since it is an 8Kb chip, it uses internal addressing for blocks, meaning E0 is typically not used or internally connected. 2. **SDA (Serial Data):** The bidirectional pin used to transfer data in and out. 3. **SCL (Serial Clock):** The input pin used to synchronize all data transfers. 4. **WC (Write Control):** A hardware protection pin. * If tied to **VSS** (Ground), write operations are enabled. * If tied to **VCC**, write operations are inhibited (Read-only mode). 5. **VCC / VSS:** Power supply and Ground pins. --- ### Operational Features #### 1. Page Write Mode The M24C08 allows for writing up to **16 bytes** in a single write cycle. This significantly improves performance compared to writing one byte at a time, as the internal "write time" (approx. 5ms) is only incurred once per page. #### 2. Device Addressing The I2C device address consists of a 4-bit fixed code (`1010`) followed by chip enable bits and a Read/Write bit. For the 8-Kbit version, the device uses bits within the address byte to select which of the four 256-byte blocks is being accessed. #### 3. Low Power Consumption The "RDS6T" designation implies specific power and packaging characteristics: * **Standby Current:** Extremely low (typically < 1 $\mu$A at 1.8V), making it ideal for battery-operated devices. * **RoHS Compliant:** The "G" or "T" suffixes usually indicate lead-free, halogen-free, and RoHS-compliant packaging. --- ### Common Applications * **Consumer Electronics:** Storing user settings in TVs or audio systems. * **Computing:** Storing BIOS configuration or SPD data. * **Industrial:** Parameter storage for sensors and small controllers. * **Medical:** Calibration data for portable diagnostic tools.