### M95020-RBN6TP: Electronic Specifications and Overview The **M95020-RBN6TP** is a 2-Kbit serial SPI (Serial Peripheral Interface) EEPROM manufactured by STMicroelectronics. It is commonly used for parameter storage in space-constrained applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Size** | 2 Kbit (256 x 8 bits) | | **Interface** | SPI (Serial Peripheral Interface) | | **Max Clock Frequency** | 20 MHz | | **Operating Voltage (Vcc)** | 1.8V to 5.5V | | **Operating Temperature** | -40°C to +85°C | | **Package Type** | SOT-23 (5-lead) / MSOP-8 (depending on specific revision) | | **Endurance** | 4 Million Write Cycles | | **Data Retention** | 200 Years | --- ### 2. Functional Pins & Architecture The device operates using a standard 4-wire SPI protocol. Below is the typical pin configuration for the SOT-23 or SO8 variants: * **S (Chip Select):** Activates the device when pulled low. * **D (Serial Data Input):** Used to transfer data/commands into the chip. * **Q (Serial Data Output):** Used to read data out of the chip. * **C (Serial Clock):** Synchronizes the data transfer. * **W (Write Control):** Hardware protection to prevent accidental writes. * **HOLD:** Pauses serial communication without deselecting the device. --- ### 3. Core Features #### Memory Protection * **Software Protection:** Block protection bits in the Status Register allow the user to protect 1/4, 1/2, or the entire memory array. * **Hardware Protection:** The `W` pin can be used to freeze the Status Register, preventing any changes to the protection settings. #### Write Operations * **Byte Write:** Updates a single byte. * **Page Write:** Allows up to 16 bytes to be written in a single cycle, significantly increasing throughput. * **Self-Timed Cycle:** The chip handles the internal erase/write timing (typically 5ms). #### Low Power Consumption Designed for battery-operated devices, it features a low standby current (typically less than 1µA at 1.8V). --- ### 4. Part Number Breakdown: `M95020-RBN6TP` | Segment | Meaning | | :--- | :--- | | **M95** | Family: SPI Serial Access EEPROM | | **020** | Density: 2 Kbit | | **-R** | Operating Voltage: 1.8V to 5.5V | | **BN** | Package: PDIP8 (Note: specific suffixes like 'MN' or 'BN' denote package geometry) | | **6** | Temperature Range: -40 to 85 °C | | **TP** | Packing: Tape & Reel | ---