The **M95128-RMB6TG/P** is a specific variant of high-density Serial Peripheral Interface (SPI) EEPROM manufactured by STMicroelectronics. It is designed for applications requiring non-volatile storage with high endurance and low power consumption. --- ## 1. Technical Specifications Below are the primary electrical and technical parameters for this specific part: | Feature | Specification | | :--- | :--- | | **Memory Size** | 128 Kbit (16,384 bytes) | | **Interface** | SPI (Serial Peripheral Interface) | | **Clock Frequency** | Up to 20 MHz (at 4.5V - 5.5V) | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Type** | UFDFPN8 (Ultra-thin Fine pitch Dual Flat No-lead) | | **Page Size** | 64 bytes | --- ## 2. Pin Configuration The M95128-RMB6TG/P typically utilizes an 8-pin layout. The pins function as follows: 1. **S# (Chip Select):** Activates the device for communication. 2. **Q (Serial Data Output):** Transfers data out of the memory. 3. **W# (Write Protect):** Hardware protection against write instructions. 4. **Vss:** Ground. 5. **D (Serial Data Input):** Receives instructions, addresses, and data. 6. **C (Serial Clock):** Synchronizes the data transfer. 7. **HOLD#:** Pauses serial communication without deselecting the device. 8. **Vcc:** Supply voltage. --- ## 3. Key Features and Behavior ### Memory Endurance * **Write Cycles:** Supports more than 4 million write cycles. * **Data Retention:** Guaranteed for more than 200 years. ### Write Protection The device features flexible protection mechanisms: * **Software Protection:** Status Register bits (BP1, BP0) allow for protecting quarter, half, or the entire memory array. * **Hardware Protection:** The `W#` pin can be used to lock the Status Register to prevent accidental data overwriting. ### Low Power Modes * **Standby Current:** Extremely low power consumption when the Chip Select (S#) is high, making it ideal for battery-operated devices. --- ## 4. Part Number Breakdown The suffix codes provide specific information about the packaging and grade: * **M95128:** Device Family (128 Kbit SPI EEPROM). * **-R:** Voltage range (1.8V to 5.5V). * **MB:** Package code for UFDFPN8 (2x3 mm). * **6:** Industrial temperature range (-40°C to 85°C). * **TG:** Tape & Reel packing with Green/RoHS compliance. * **P:** Process technology identifier (specific to ST’s manufacturing line).