The **M93C46-RBN6TP/S** is a specific type of Non-Volatile Memory (NVM) integrated circuit. It belongs to the **Microwire Bus** family of Serial EEPROMs (Electrically Erasable Programmable Read-Only Memory). --- ### ## Technical Specifications Below are the primary technical parameters for this specific part number: | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (128 x 8 bits or 64 x 16 bits) | | **Interface** | Microwire (3-wire serial) | | **Operating Voltage** | 1.8V to 5.5V | | **Clock Frequency** | 2 MHz (@ 5V) | | **Package Type** | SO8N (8-lead Small Outline, 150 mils width) | | **Temperature Range** | -40°C to +85°C (Industrial Grade) | | **Endurance** | 4 million write cycles | | **Data Retention** | 200 years | --- ### ## Part Number Breakdown Understanding the suffix codes helps identify the specific physical and electrical characteristics: 1. **M93C46**: The base model (1 Kbit Microwire EEPROM). 2. **-R**: Indicates the voltage range (1.8V to 5.5V). 3. **B**: Refers to the device grade (Industrial temperature range). 4. **N**: Refers to the package type (**SO8**). 5. **6**: Indicates the temperature range code (-40 to +85°C). 6. **TP**: Tape and Reel packaging. 7. **S**: Refers to the **High Reliability** or specific fabrication process (often indicates a specific assembly plant or RoHS compliance level). --- ### ## Functional Features * **User-Selectable Internal Organization**: By wiring the `ORG` pin, the memory can be accessed as either 8-bit bytes or 16-bit words. * **Sequential Read**: Allows the user to read the entire memory contents with a single command by continuing to provide clock pulses. * **Write Protection**: The device includes a "Write Disable" mode to prevent accidental data corruption during power-up or power-down. * **Self-Timed Programming**: The chip handles the internal timing for erasing and writing data, signaling "Ready/Busy" status via the data output pin. --- ### ## Common Applications This part is typically used in applications where small amounts of configuration data must be preserved when power is removed: * **Consumer Electronics**: Storing user preferences in TVs or audio equipment. * **Networking**: Storing MAC addresses or hardware configuration in routers. * **Industrial**: Calibration constants and sensor identification. * **Automotive**: Storing odometer readings or error logs in non-safety critical modules.