The **M93C76-RBN3TP/S** is a specialized non-volatile memory chip. It is an 8-Kbit Serial Microwire EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 8 Kbits (8,192 bits) | | **Memory Organization** | 1024 x 8 bits or 512 x 16 bits (User selectable) | | **Interface Protocol** | Microwire (3-Wire Serial) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 2 MHz (at 4.5V - 5.5V) | | **Package Type** | SOT-23-6 (indicated by the "N" and "TP" codes) | | **Temperature Range** | -40°C to +125°C (Automotive Grade 3) | --- ### 2. Functional Features * **Selectable Word Size:** The device features an internal organization that can be defined by the state of the "ORG" pin. It can act as a byte-wide memory (x8) or a word-wide memory (x16). * **Write Protection:** It includes a software write-protection mechanism. The `WEN` (Write Enable) and `WDS` (Write Disable) instructions prevent accidental data corruption. * **High Endurance:** * **Write Cycles:** Up to 4 million cycles. * **Data Retention:** Over 200 years. * **Self-Timed Programming:** The chip handles its own internal erase/write cycles once the command is received, freeing up the host microcontroller. --- ### 3. Pinout Configuration (SOT-23-6) For the "BN3" (SOT-23) variant, the typical pin functions are as follows: | Pin Number | Name | 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 | **VCC** | Supply Voltage | --- ### 4. Part Number Breakdown The suffix **RBN3TP/S** provides specific manufacturing details: * **R**: Operating voltage range (1.8V to 5.5V). * **BN**: Package type (SOT-23). * **3**: Device grade (Automotive temperature range -40 to +125°C). * **TP**: Tape & Reel packing. * **S**: High-reliability process or specific manufacturing site designation. --- ### 5. Common Applications * **Automotive Electronics:** Storing calibration data or odometer readings. * **Industrial Control:** Parameter storage for sensors and actuators. * **Consumer Electronics:** Storing configuration settings in devices with limited space.