## Technical Overview: M95080-RMB6 TG The **M95080-RMB6** is a specific variant of the STMicroelectronics 8-Kbit serial SPI (Serial Peripheral Interface) Bus EEPROM. It is widely used in automotive, industrial, and consumer electronics for storing small amounts of non-volatile data, such as calibration parameters, configuration settings, or device IDs. --- ### 1. Key Technical Specifications | Feature | Description | | :--- | :--- | | **Memory Size** | 8 Kbit (1,024 bytes) | | **Memory Organization** | 1,024 x 8 bits | | **Interface** | SPI (Serial Peripheral Interface) | | **Max Clock Frequency** | 20 MHz (at VCC > 4.5V) | | **Voltage Range (R)** | 1.8 V to 5.5 V | | **Operating Temperature** | -40°C to +85°C | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | --- ### 2. Functional Electronic Components The internal architecture consists of several critical blocks that manage data integrity and communication: * **Memory Array:** The core storage block organized in rows and columns. It supports "Byte Write" and "Page Write" (up to 32 bytes). * **SPI Control Logic:** Interprets commands (Instruction Register) and handles the synchronous serial communication. * **Write Protection Logic:** Includes a Status Register that can software-write-protect specific blocks of the memory. * **Voltage Regulator/Sense Amps:** Internal circuits that manage the high voltage required for erasing and programming the EEPROM cells. --- ### 3. Pinout Configuration (UFDFPN8) The device uses 8 pins to facilitate power and communication: | Pin | Name | Type | Description | | :--- | :--- | :--- | :--- | | 1 | **S#** | Input | Chip Select (Active Low) | | 2 | **Q** | Output | Serial Data Output | | 3 | **W#** | Input | Write Control / Protect | | 4 | **VSS** | Power | Ground | | 5 | **D** | Input | Serial Data Input | | 6 | **C** | Input | Serial Clock | | 7 | **HOLD#** | Input | Pause Serial Communication | | 8 | **VCC** | Power | Supply Voltage | --- ### 4. Implementation Details * **Endurance:** The memory is rated for **4 million write cycles**, making it extremely durable for applications with frequent updates. * **Data Retention:** Guaranteed for **over 200 years**, ensuring long-term stability even without power. * **Hardware Protection:** The `W#` (Write Protect) pin allows the user to lock the Status Register, preventing accidental data corruption from noise or software bugs. --- ### 5. Part Number Decoding (M95080-RMB6TG) * **M95:** SPI Family EEPROM. * **080:** 8 Kbit density. * **-R:** 1.8V to 5.5V supply voltage range. * **MB:** UFDFPN8 (MLP8) package. * **6:** Industrial temperature range (-40°C to 85°C). * **TG:** Tape & Reel packaging with Green (RoHS) compliance.