## Electronic Specifications: M24C16-RDS3TP The **M24C16-RDS3TP** is a 16-Kbit serial I²C Bus EEPROM (Electrically Erasable Programmable Memory) manufactured by STMicroelectronics. It is specifically designed for low-voltage applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 16 Kbit (2048 x 8 bits) | | **Interface** | I²C (Inter-Integrated Circuit) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz (Fast Mode) / 1 MHz (Fast Mode Plus) | | **Package Type** | TSSOP8 (Thin Shrink Small Outline Package) | | **Operating Temperature** | -40°C to +125°C | | **Write Cycles** | 4 million cycles (at 25°C) | | **Data Retention** | 200 years | --- ### 2. Functional Description The device operates as a slave in the I²C protocol. Below are the core functional components: * **Memory Array:** Organized as 128 pages of 16 bytes each. * **Write Protection (WC):** A hardware Write Control pin is available. If connected to $V_{CC}$, the entire memory becomes write-protected. If connected to $V_{SS}$ (Ground), write operations are enabled. * **Device Addressing:** The M24C16 uses a fixed 4-bit device type identifier (`1010`). Because it uses all 16 Kbits, it utilizes the 3 bits usually reserved for chip enable (E0, E1, E2) as part of the internal memory address, meaning you can only have one M24C16 on the same I²C bus. --- ### 3. Pin Configuration (TSSOP8) | Pin Number | Symbol | Function | | :--- | :--- | :--- | | 1-3 | NC | Not Connected (Internal addresses are fixed) | | 4 | $V_{SS}$ | Ground | | 5 | SDA | Serial Data (Bidirectional) | | 6 | SCL | Serial Clock (Input) | | 7 | WC | Write Control (Active High) | | 8 | $V_{CC}$ | Supply Voltage | --- ### 4. Part Number Breakdown: M24C16-RDS3TP * **M24**: I²C Serial Access EEPROM. * **C16**: 16 Kbit capacity. * **R**: Operating voltage range of 1.8V to 5.5V. * **DS**: TSSOP8 package (3 x 4.4 mm body). * **3**: Device grade 3 (Temperature range -40 to +125°C). * **TP**: Tape and Reel packaging. --- ### 5. Application Circuit Example ```cpp // Typical I2C Write Command Sequence // 1. Start Signal // 2. Device Address (1010 + A10, A9, A8 + R/W) // 3. Byte Address (A7 to A0) // 4. Data Byte(s) // 5. Stop Signal ```