## Overview of M95M01-RMW6G The **M95M01-RMW6G** is a high-performance, high-capacity Electrically Erasable Programmable Read-Only Memory (**EEPROM**) manufactured by STMicroelectronics. It is designed for applications requiring reliable non-volatile storage with high endurance and a serial interface. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Memory Size** | 1 Megabit (128 KB) | | **Interface** | SPI (Serial Peripheral Interface) | | **Operating Voltage** | 1.8V to 5.5V | | **Max Clock Frequency** | 5 MHz (at 1.8V) to 16 MHz (at 4.5V - 5.5V) | | **Page Size** | 256 Bytes | | **Package Type** | SO8N (8-lead Small Outline, Narrow) | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Detailed Electronic Characteristics #### A. The SPI Interface The device operates in SPI Mode 0 (0,0) and Mode 3 (1,1). It utilizes four main signals: * **S (Chip Select):** Activates the device. * **D (Serial Data Input):** Receives instructions and data. * **Q (Serial Data Output):** Sends data to the host controller. * **C (Serial Clock):** Synchronizes data movement. #### B. Memory Architecture The 1 Mbit memory is organized as **131,072 bytes** of 8 bits each. Internally, the memory is managed in pages of **256 bytes**, which allows for efficient "Page Write" operations. #### C. Reliability and Endurance * **Write Cycles:** Supports more than 4 million write cycles. * **Data Retention:** Guaranteed for more than 200 years. * **ESD Protection:** Human Body Model (HBM) up to 4000V. --- ### 3. Pinout Configuration (SO8N) | Pin Number | Name | Function | | :---: | :--- | :--- | | 1 | **S#** | Chip Select (Active Low) | | 2 | **Q** | Serial Data Output | | 3 | **W#** | Write Control / Protect | | 4 | **VSS** | Ground | | 5 | **D** | Serial Data Input | | 6 | **C** | Serial Clock | | 7 | **HOLD#** | Pause Serial Communication | | 8 | **VCC** | Supply Voltage | --- ### 4. Part Number Breakdown: M95M01-RMW6G * **M95:** SPI family of EEPROMs. * **M01:** 1 Megabit density. * **-R:** Operating voltage range (1.8V to 5.5V). * **MW:** SO8N (150 mil width) package. * **6:** Industrial temperature range (-40 to 85°C). * **G:** ECOPACK2 (RoHS compliant, Halogen-free). --- ### 5. Application Usage This part is commonly found in: * **Consumer Electronics:** Storing user settings and calibration data. * **Industrial:** Storing event logs and parameter configurations. * **Medical:** Data logging for portable diagnostic devices.