## M24C01-RCT6TP/S: Electronic Parts Overview The **M24C01-RCT6TP/S** is a specific variant of an Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by **STMicroelectronics**. It is part of the M24 family, which uses the I²C (Inter-Integrated Circuit) serial interface. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 bytes) | | **Interface** | I²C Serial (Two-wire) | | **Clock Frequency** | 400 kHz (Fast Mode) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Operating Temperature** | -40°C to +85°C | | **Package Type** | SOT23-5 (Small Outline Transistor) | | **Endurance** | 4 Million Write Cycles | | **Data Retention** | 200 Years | --- ### 2. Pinout Configuration (SOT23-5) Because this is a 5-pin SOT23 package, the pin assignment is more compact than standard 8-pin variants. | Pin Number | Name | Description | | :--- | :--- | :--- | | 1 | **SCL** | Serial Clock | | 2 | **Vss** | Ground | | 3 | **SDA** | Serial Data (Bidirectional) | | 4 | **Vcc** | Supply Voltage | | 5 | **WC** | Write Control (Hardware Write Protection) | --- ### 3. Core Functionality * **Non-Volatile Storage:** It retains data even after power is removed. It is primarily used for storing configuration settings, calibration data, or small look-up tables. * **Write Protection (WC):** When the `WC` pin is driven High, the entire memory contents become protected against write instructions. When driven Low, the memory can be written to. * **Byte and Page Write:** It supports writing a single byte at a time or a "page" (up to 8 bytes) in a single write cycle. --- ### 4. Part Number Breakdown The suffix **RCT6TP/S** provides specific manufacturing and packaging details: * **M24C01**: 1 Kbit I²C Serial EEPROM. * **R**: Operating voltage range (1.8V to 5.5V). * **C**: SOT23-5 package. * **T**: Industrial temperature range (-40°C to +85°C). * **6**: Indicates the device is Lead-free and Halogen-free (RoHS compliant). * **TP**: Tape and Reel packaging (standard for automated SMT assembly). * **/S**: Usually denotes a specific "Shrink" process or a specialized manufacturing flow (sometimes indicating specific automotive or high-reliability testing). --- ### 5. Implementation Example To communicate with this chip using a microcontroller, you typically use a standard I²C library. Below is a conceptual logic for a "Byte Write" operation: ```c // Example I2C Sequence for M24C01 1. START Condition 2. Send Device Address (0xA0 for Write) 3. Send Memory Address (0x00 to 0x7F) 4. Send Data Byte 5. STOP Condition ```