The part number **M93C56-RMB6TG** (often referred to with the suffix /W) belongs to a family of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) devices manufactured by **STMicroelectronics**. Below is a detailed breakdown of the electronic specifications and features for this component. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 2 Kbit (2048 bits) | | **Organization** | Configurable: 256 x 8 bits OR 128 x 16 bits | | **Interface** | MICROWIRE (Serial 3-Wire) | | **Clock Frequency** | 2 MHz (at 5V) / 1 MHz (at 1.8V) | | **Supply Voltage** | 1.8V to 5.5V | | **Package Type** | UFDFPN8 (MLP8) - 2x3 mm | | **Operating Temp** | -40°C to +85°C | --- ### 2. Detailed Part Number Breakdown The suffix **M93C56-RMB6TG** can be decoded as follows: * **M93**: MICROWIRE serial access EEPROM. * **C56**: 2 Kbit density. * **R**: Operating voltage range of 1.8V to 5.5V. * **MB**: UFDFPN8 (Ultra Thin Fine Pitch Dual Flat No-lead) package. * **6**: Industrial temperature range (-40 to 85°C). * **T**: Tape and Reel packaging. * **G**: ECOPACK2 (RoHS compliant/Halogen-free). * **"W" (Process Suffix)**: Usually denotes a specific wafer process or a high-reliability version often used in automotive or specialized industrial lines. --- ### 3. Functional Features * **Read/Write Cycles**: High endurance with up to 1 million write cycles. * **Data Retention**: Rated for more than 40 years. * **Sequential Read**: Allows the user to read the entire memory contents with a single address command. * **Ready/Busy Status**: Provides a hardware signal (on the DO pin) to indicate when a write cycle is complete. * **Software Write Protection**: Includes instructions to enable or disable the write circuitry to prevent accidental data loss. --- ### 4. Pin Configuration (Typical UFDFPN8) | Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | **S** | Chip Select | | 2 | **C** | Serial Clock | | 3 | **D** | Serial Data Input | | 4 | **Q** | Serial Data Output | | 5 | **Vss** | Ground | | 6 | **ORG** | Organization Select (High for x16, Low for x8) | | 7 | **DU** | Don't Use (Internal connection) | | 8 | **Vcc** | Supply Voltage | --- ### 5. Application Usage This part is commonly used for storing configuration data, look-up tables, or calibration parameters in: * Consumer electronics (TVs, appliances). * Industrial controllers. * Medical devices (due to high data retention). * PC peripherals. ---