The **M93C76-RBN6G/S** is a specialized non-volatile memory chip. It belongs to the STMicroelectronics family of Microwire Serial EEPROMs. These devices are commonly used for storing configuration data, user settings, or calibration parameters in embedded systems. --- ## 1. Technical Specifications The part number encodes specific technical details regarding its capacity, voltage, and package type. | Parameter | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1024 x 8 bits or 512 x 16 bits) | | **Interface** | Microwire (3-Wire Serial Interface) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 2 MHz (at 5V), 1 MHz (at 1.8V) | | **Package Type** | PDIP8 (Plastic Dual-In-line Package, 8 pins) | | **Temperature Range** | -40°C to +85°C (Industrial Grade) | | **Endurance** | 4 Million Write Cycles | | **Data Retention** | 200 Years | --- ## 2. Key Internal Components The chip is composed of several functional blocks that manage data flow and storage: 1. **EEPROM Array:** The core storage area where data is kept even after power is removed. 2. **Instruction Decoder:** Interprets serial commands (READ, WRITE, ERASE) sent via the DI (Data Input) pin. 3. **Address Register:** Decodes the specific location in the memory array to be accessed. 4. **Control Logic:** Manages the internal high-voltage generation required for programming (writing) the cells. 5. **Organization Select (ORG):** A hardware pin that allows the user to define if the memory is structured as 8-bit bytes or 16-bit words. --- ## 3. Pinout Configuration The M93C76-RBN6G/S uses a standard 8-pin layout: | Pin | Symbol | Description | | :--- | :--- | :--- | | 1 | **S** | Chip Select (Active High) | | 2 | **C** | Serial Clock | | 3 | **D** | Serial Data Input | | 4 | **Q** | Serial Data Output | | 5 | **Vss** | Ground | | 6 | **ORG** | Internal Organization (x8 or x16) | | 7 | **DU** | Don't Use (Leave disconnected or to Vss) | | 8 | **Vcc** | Supply Voltage | --- ## 4. Part Number Breakdown (Decoding) The suffix **RBN6G/S** provides specific manufacturing info: * **M93C76**: Device Base (8 Kbit EEPROM). * **-R**: Low voltage range (1.8V to 5.5V). * **BN**: PDIP8 package. * **6**: Industrial temperature range (-40 to 85°C). * **G/S**: Refers to RoHS compliance (Green) and specific STMicroelectronics internal manufacturing codes. ---