The **M93C76-RMB6G** is an 8-Kbit serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip manufactured by STMicroelectronics. It is commonly used for non-volatile data storage in consumer electronics and industrial applications. --- ## 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Memory Size** | 8 Kbit (1024 x 8 bits or 512 x 16 bits) | | **Interface** | MICROWIRE (Serial 3-Wire) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 2 MHz (at 4.5V - 5.5V) | | **Package Type** | UFDFPN8 (MLP8) - Ultra thin fine pitch dual flat no lead | | **Operating Temp Range** | -40°C to +85°C | | **Write Cycles** | 4 million cycles (typical) | | **Data Retention** | 200 Years | --- ## 2. Pin Configuration The M93C76-RMB6G typically uses an 8-pin layout. The functionality of the pins is as follows: 1. **S (Chip Select):** Activates the device when high. 2. **D (Serial Data Input):** Receives instructions and data. 3. **C (Serial Clock):** Synchronizes the data transfer. 4. **Q (Serial Data Output):** Outputs data during read operations. 5. **VCC:** Supply voltage. 6. **VSS:** Ground. 7. **ORG (Organization):** Sets the memory architecture (x8 or x16). 8. **DU (Don't Use):** Usually left unconnected or grounded. --- ## 3. Key Electronic Features ### Configurable Organization One of the distinct features of the M93C76 is the **ORG pin**. - If ORG is connected to **VCC**, the memory is organized as **512 x 16 bits**. - If ORG is connected to **VSS**, it is organized as **1024 x 8 bits**. ### Low Power Consumption Designed for mobile and battery-powered devices, it features: - **Active Read Current:** 1 mA (max) - **Standby Current:** 1 µA (max at 1.8V) ### Protection Mechanisms The chip includes a **Write Enable/Disable** instruction set. This prevents accidental data erasure or overwriting during power-up or power-down sequences. --- ## 4. Part Number Breakdown Understanding the suffixes for `M93C76-RMB6G`: | Suffix | Meaning | | :--- | :--- | | **M93C** | Standard MICROWIRE Interface | | **76** | 8 Kbit Density | | **-R** | Low Voltage (1.8V to 5.5V) | | **MB** | UFDFPN8 Package (2x3 mm) | | **6** | Industrial Temperature Range (-40 to 85°C) | | **G** | ECOPACK2 (RoHS compliant/Halogen-free) | ---