The **M95320-RMB3TP/P** is a specific variant of the M95320 family, which are high-speed Serial Peripheral Interface (SPI) EEPROM (Electrically Erasable Programmable Read-Only Memory) devices manufactured by **STMicroelectronics**. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 32 Kbit (4,096 bytes) | | **Interface** | SPI (Serial Peripheral Interface) | | **Clock Frequency** | Up to 20 MHz | | **Operating Voltage (Vcc)** | 1.8V to 5.5V | | **Package Type** | UFDFPN8 (MLP8) - Ultra-thin Fine pitch Dual Flat No-lead | | **Operating Temperature** | -40°C to +125°C (Automotive Grade 3) | | **Endurance** | 4 Million write cycles | | **Data Retention** | 200 Years | --- ### 2. Breakdown of the Part Number To understand the specific capabilities of this component, we can decode the suffix: * **M95320**: Base part number (32 Kbit SPI EEPROM). * **-R**: Operating voltage range of 1.8V to 5.5V. * **MB**: Package code for **UFDFPN8** (2x3 mm). * **3**: Temperature range (-40 to +125 °C). * **TP**: Tape & Reel packing. * **P**: Process technology / RoHS compliant. --- ### 3. Functional Pinout The device typically uses an 8-pin configuration: | Pin | Name | Description | | :--- | :--- | :--- | | 1 | **S#** | Chip Select (Active Low) | | 2 | **Q** | Serial Data Output | | 3 | **W#** | Write Protect | | 4 | **Vss** | Ground | | 5 | **D** | Serial Data Input | | 6 | **C** | Serial Clock | | 7 | **HOLD#** | Hold (pauses communication) | | 8 | **Vcc** | Supply Voltage | --- ### 4. Advanced Features * **Byte and Page Write:** Allows writing a single byte or a page of up to 32 bytes at once. * **Block Protection:** Provides software write protection for quarter, half, or the entire memory array. * **High Reliability:** Designed for automotive and industrial applications where high temperatures and frequent write cycles are expected. * **Low Power Consumption:** Minimal current draw during standby mode, making it ideal for battery-powered devices. ---