## M93C86-RMB7T: Electronic Component Specifications The **M93C86-RMB7T** is a 16-Kbit serial MICROWIRE EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by **STMicroelectronics**. It is widely used for non-volatile data storage in consumer, industrial, and automotive applications. --- ### 1. General Overview | Attribute | Specification | | :--- | :--- | | **Memory Size** | 16 Kbit (16,384 bits) | | **Interface** | MICROWIRE (3-wire serial interface) | | **Organization** | Configurable: 2048 x 8-bit or 1024 x 16-bit | | **Operating Voltage** | 1.8V to 5.5V | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Temperature Range** | -40°C to +105°C (Grade 7) | --- ### 2. Key Technical Features * **Write Protection:** Includes a software write protection mechanism for all memory locations. * **Clock Frequency:** Supports a clock rate up to **2 MHz**. * **Data Retention:** Greater than **40 years**. * **Endurance:** High reliability with **over 1,000,000 (1M) write cycles**. * **Sequential Read:** Allows for continuous data streaming from a starting address. * **Ready/Busy Signal:** Provides a status signal on the Data Out (DO) pin during internal write cycles. --- ### 3. Pin Configuration (UFDFPN8) The device typically uses an 8-pin layout to handle power, communication, and configuration: | Pin Name | Description | Function | | :--- | :--- | :--- | | **S** | Chip Select | Activates the device for communication. | | **D** | Serial Data Input | Receives instructions and data from the MCU. | | **Q** | Serial Data Output | Sends data or status to the MCU. | | **C** | Serial Clock | Synchronizes the data transfer. | | **ORG** | Organization Select | High = x16 organization; Low = x8 organization. | | **VCC / VSS** | Supply Voltage / Ground | Power pins (1.8V - 5.5V). | | **NC / DU** | Not Connected / Don't Use | Reserved pins. | --- ### 4. Part Number Breakdown: M93C86-RMB7T * **M93C**: MICROWIRE serial EEPROM family. * **86**: Density (16 Kbit). * **-R**: Operating voltage (1.8V to 5.5V). * **MB**: Package type (UFDFPN8 2x3 mm). * **7**: Temperature range (-40 to +105°C). * **T**: Tape and Reel packaging. --- ### 5. Common Applications * **Automotive:** Storing calibration data or odometer readings in instrument clusters. * **Industrial:** Parameter storage for sensors and controllers. * **Consumer Electronics:** Configuration settings for TVs, printers, and monitors.