The **M24C01-RMB6T** is a 1-Kbit serial I²C Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by STMicroelectronics. It is specifically designed for low-power and low-voltage applications. --- ## 1. Key Specifications The following table summarizes the primary electrical and technical characteristics of the device. | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes × 8 bits) | | **Interface** | I²C (Two-wire Serial) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 400 kHz | | **Write Cycle Time** | 5 ms (Maximum) | | **Endurance** | 4 million write cycles | | **Data Retention** | 200 years | | **Operating Temp** | -40°C to +85°C | --- ## 2. Pinout Configuration The "MB6T" suffix refers to the **UFDFPN8** (Ultra-thin Fine pitch Dual Flat No-lead) package, which is extremely compact (2x3 mm). | Pin Number | Name | Description | | :--- | :--- | :--- | | 1, 2, 3 | E0, E1, E2 | Chip Enable (Address inputs) | | 4 | VSS | Ground | | 5 | SDA | Serial Data (Bidirectional) | | 6 | SCL | Serial Clock | | 7 | WC | Write Control (Hardware Write Protection) | | 8 | VCC | Supply Voltage | --- ## 3. Core Features & Functional Blocks ### I²C Serial Interface The device operates as a slave on the I²C bus. It requires a Master (e.g., a microcontroller) to initiate data transfers using the SCL (Clock) and SDA (Data) lines. ### Write Protection (WC Pin) * **WC at Vih (High):** The entire memory block is write-protected (Read-only). * **WC at Vil (Low):** The memory is unprotected and can be written to. ### Power Management The "R" in the part number indicates a specific voltage range (1.8V to 5.5V), making it ideal for battery-operated devices like smartphones, wearables, and cameras. ### Memory Organization The 1 Kbit of memory is organized as **8 pages of 16 bytes each**. It supports both "Byte Write" and "Page Write" (up to 16 bytes at once). --- ## 4. Typical Application Circuit To use this chip, you generally need pull-up resistors on the I²C lines. ```c // Example: Basic I2C Pull-up Setup VCC (1.8V - 5.5V) | [4.7k Ohm Resistor] -- SDA (Pin 5) | [4.7k Ohm Resistor] -- SCL (Pin 6) ```