M95M01-DFMN6TP - 1Mbit SPI EEPROM, 10MHz | STMicroelectronics
料号： M95M01-DFMN6TP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.76 | $7.60 |
| 100 | $0.68 | $68.00 |
| 500 | $0.61 | $305.00 |
| 1,000 | $0.55 | $550.00 |
M95M01-DFMN6TP 概述
An EEPROM (Electrically Erasable Programmable Read-Only Memory) is a non-volatile memory that retains data when power is removed, and can be electrically erased and reprogrammed. It is a type of non-volatile memory (NVM) that sits within the broader memory hierarchy, bridging the gap between volatile RAM and permanent storage like flash. EEPROMs are used for storing configuration parameters, calibration data, device IDs, and small amounts of firmware that require in-system updates.
Key features of the M95M01-DFMN6TP include a 10 MHz SPI clock frequency, byte and page write modes (up to 256 bytes per page), write protection via a hardware pin, and a status register for programming control. The device supports both sequential and random read operations, and features a write cycle time of 5 ms typical. It also includes a software write protection mechanism and a hardware write control pin (W) for additional security.
The M95M01-DFMN6TP is built on ST's advanced EEPROM technology, offering high endurance of 4 million write cycles and data retention of 200 years at 55°C. The SPI interface allows for simple integration with microcontrollers and SoCs, requiring only four signal lines (C, D, Q, and S). The device is fully RoHS compliant and halogen-free, meeting modern environmental standards.
Typical applications include industrial automation for parameter storage, smart meters for calibration data, automotive electronics for configuration storage, and IoT devices for device identity and network credentials. The wide voltage range and high speed make it versatile across battery-powered and line-powered systems.
When designing with this device, ensure proper decoupling on the power supply and keep the SPI traces short to minimize signal integrity issues at 10 MHz. The write protect pin should be tied to a known state if not used, and the hold pin (not present on this package) is not available, so ensure the SPI master does not require hold functionality.
直接替换替代料： M95M01-DFMN6TP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
M95M01-DFMN6TP-A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
25AA1024-I/SM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CAT25M01
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
M95M01-DFMN6TP 规格参数
| 存储容量 | 1 Mbit (128 Kbyte) |
| 存储组织 | 131,072 x 8 bits |
| 接口类型 | SPI |
| 最大时钟频率 | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| 工作温度范围 | -40°C to +85°C |
| 封装 | SO-8 (MN) |
| 安装类型 | Surface Mount |
| Write Cycle Time | 5 ms (typical) |
| Page Size | 256 bytes |
| Endurance | 4 million write cycles |
| Data Retention | 200 years at 55°C |
| RoHS 状态 | Compliant |
| 无卤 | Yes |
M95M01-DFMN6TP 引脚配置
| 引脚 1 | S — Chip select (active low) |
| 引脚 2 | Q — Data output (SPI MISO) |
| 引脚 3 | W — Write protect (active low) |
| 引脚 4 | VSS — Ground |
| 引脚 5 | D — Data input (SPI MOSI) |
| 引脚 6 | C — Clock (SPI SCK) |
| 引脚 7 | HOLD — Hold (active low) |
| 引脚 8 | VCC — Power supply |
典型应用
M95M01-DFMN6TP 适用于 6 应用s: Industrial Automation, Smart Meters, Automotive Electronics, IoT Devices, Medical Devices, Networking Equipment.
Industrial Automation
The M95M01-DFMN6TP is used in industrial automation for storing configuration parameters, calibration data, and device settings. Its 1-Mbit capacity and 10 MHz SPI interface allow fast read/write operations, while the wide voltage range (1.8V-5.5V) ensures compatibility with various industrial logic levels. The high endurance of 4 million write cycles supports frequent parameter updates in programmable logic controllers (PLCs) and motor drives. The device's -40°C to +85°C temperature range makes it suitable for harsh factory environments. In a typical PLC, the EEPROM stores user programs and system settings, with the SPI interface connecting to the microcontroller's SPI peripheral. The write protect pin can be used to prevent accidental writes during operation, enhancing system reliability. Compared to flash memory, EEPROM offers byte-level write granularity, which is essential for updating individual parameters without rewriting entire blocks.
推荐
Smart Meters
In smart metering applications, the M95M01-DFMN6TP stores calibration constants, meter IDs, and consumption logs. Its low power consumption and wide voltage range (1.8V-5.5V) are ideal for battery-powered meters. The 10 MHz SPI clock enables fast data transfer during meter reading, while the 200-year data retention ensures long-term reliability of stored data. The device's page write mode (256 bytes) allows efficient logging of consumption data. In a typical smart meter, the EEPROM is connected to the metering IC via SPI, storing calibration factors that are used to convert raw sensor readings into accurate energy measurements. The write protect pin can be used to lock calibration data after initial configuration, preventing tampering. The high endurance of 4 million write cycles supports frequent data logging over the meter's 20-year lifespan.
推荐
Automotive Electronics
Although the standard M95M01-DFMN6TP is not AEC-Q100 qualified, it can be used in non-safety automotive applications where the automotive-grade variant (M95M01-DFMN6TP-A) is not required. It stores vehicle configuration data, radio presets, and diagnostic information. The wide voltage range (1.8V-5.5V) accommodates automotive battery voltage variations, and the -40°C to +85°C range covers most automotive environments. The 10 MHz SPI interface allows fast data access for infotainment systems. In a typical car radio, the EEPROM stores user settings such as volume, station presets, and equalizer settings. The SPI interface connects to the main infotainment SoC, and the write protect pin prevents accidental overwrites during firmware updates. For safety-critical applications, the AEC-Q100 qualified version is recommended.
推荐
IoT Devices
The M95M01-DFMN6TP is used in IoT devices for storing device credentials, network configuration, and sensor calibration data. Its low power consumption and wide voltage range (1.8V-5.5V) are ideal for battery-powered sensors and wearables. The 10 MHz SPI interface enables fast data transfer for over-the-air updates, while the 1-Mbit capacity provides ample storage for device certificates and logs. The device's small SO-8 package is suitable for space-constrained designs. In a typical IoT sensor node, the EEPROM stores the device's unique ID, Wi-Fi credentials, and sensor calibration coefficients. The SPI interface connects to the microcontroller, and the write protect pin can be used to secure credentials from unauthorized access. The high endurance supports frequent updates of sensor calibration data.
推荐
Medical Devices
In medical devices, the M95M01-DFMN6TP stores device settings, patient data logs, and calibration information. Its high reliability (200-year data retention) and wide voltage range (1.8V-5.5V) make it suitable for portable and implantable devices. The 10 MHz SPI interface allows fast data access for real-time monitoring. The device's small footprint is ideal for compact medical sensors. In a typical glucose monitor, the EEPROM stores calibration codes and patient history. The SPI interface connects to the measurement IC, and the write protect pin prevents accidental data corruption. The high endurance supports frequent data logging, and the -40°C to +85°C range covers clinical environments.
推荐
Networking Equipment
The M95M01-DFMN6TP is used in networking equipment for storing MAC addresses, device configuration, and firmware version information. Its 10 MHz SPI interface enables fast read/write operations during boot-up, and the 1-Mbit capacity provides ample storage for configuration data. The wide voltage range (1.8V-5.5V) is compatible with various networking ICs. The device's high endurance supports frequent configuration updates in routers and switches. In a typical Ethernet switch, the EEPROM stores the device's MAC address and port configuration. The SPI interface connects to the switch controller, and the write protect pin prevents accidental overwrites during firmware upgrades. The 200-year data retention ensures long-term reliability in always-on equipment.
推荐
推荐产品汇总
工程参考数据： M95M01-DFMN6TP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | M95M01-DFMN6TP-A | M95M01-DWMN6TP | 25AA1024-I/SM | CAT25M01 |
|---|---|---|---|---|---|
| Package | SO-8 (MN) | SO-8 (MN) - same | TSSOP-8 - different | SO-8 - same | SO-8 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Microchip Technology | onsemi |
| Memory Size | 1 Mbit | 1 Mbit | 1 Mbit | 1 Mbit | 1 Mbit |
| Max Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 10 MHz | 10 MHz |
| Supply Voltage Range | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| Write Cycle Time | 5 ms | 5 ms | 5 ms | 5 ms | 5 ms |
| Endurance | 4 million cycles | 4 million cycles | 4 million cycles | 1 million cycles | 1 million cycles |
| Automotive Grade | No | Yes (AEC-Q100) | No | No | No |
关键差异点
- Higher endurance than cross-brand alternatives （对比 25AA1024-I/SM)
- Automotive-grade variant available （对比 CAT25M01)
- Same-brand package flexibility （对比 M95M01-DWMN6TP)
设计说明
Place a 0.1uF decoupling capacitor close to the VCC pin (pin 8) and a 10uF bulk capacitor on the power rail. Keep SPI traces (C, D, Q, S) short and matched in length to minimize signal integrity issues at 10 MHz. Use a ground plane to reduce noise.
Ensure the write protect pin (W) is tied to VCC or GND as needed. If left floating, it may cause unintended write protection. Also, the HOLD pin (pin 7) must be tied high if not used, as a low level pauses communication and can cause bus conflicts.
The M95M01-DFMN6TP operates from 1.8V to 5.5V. Ensure the supply voltage is stable and within the specified range during write operations. Voltage dips below 1.8V can cause write failures or data corruption. Use a low-dropout regulator if needed.
合规信息
RoHS and halogen-free per STMicroelectronics product page. Not AEC-Q100 qualified; automotive-grade variant M95M01-DFMN6TP-A is available.
