M95M02-DRMN6TP - 2Mbit SPI EEPROM | STMicroelectronics
部品番号: M95M02-DRMN6TP ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.98 | $98.00 |
| 500 | $0.87 | $435.00 |
| 1,000 | $0.79 | $790.00 |
M95M02-DRMN6TP 概要
An EEPROM (Electrically Erasable Programmable Read-Only Memory) is a type of non-volatile memory that can be electrically erased and reprogrammed. It retains data without power, making it essential for storing configuration parameters, calibration data, and small amounts of firmware in embedded systems. EEPROMs are part of the broader memory IC hierarchy: EEPROM -> serial EEPROM -> SPI EEPROM -> non-volatile memory -> semiconductor memory. The SPI interface provides a simple, high-speed serial connection using just four wires (SCK, MOSI, MISO, CS), reducing pin count and PCB area compared to parallel EEPROMs.
Key features of the M95M02-DRMN6TP include a 20 MHz maximum clock frequency, byte and page write modes (up to 256 bytes per page), and a write time of 5 ms per page. It offers a write endurance of 4 million write cycles and data retention of 100 years, ensuring long-term reliability. The device also includes a hardware write-protect pin (WC) and a status register with a Write-In-Progress (WIP) bit for software polling. The SO-8N package is industry-standard, enabling drop-in compatibility with many other 2-Mbit SPI EEPROMs.
Technically, the M95M02-DRMN6TP uses a floating-gate transistor architecture, which is standard for EEPROM technology. The SPI interface supports modes 0 and 3, and the device is compatible with both 3-wire and 4-wire SPI configurations. The memory array is organized into 1024 pages of 256 bytes each, allowing efficient block writes. The device also features a deep power-down mode that reduces current consumption to 1 uA, ideal for battery-powered applications.
Typical applications include industrial automation for storing calibration and configuration data, smart meters for logging consumption data, and automotive electronics for storing VIN and diagnostic information. The wide voltage range and high endurance make it suitable for harsh environments. In IoT devices, it stores device credentials and sensor calibration data.
When designing with this device, ensure the SPI bus is properly terminated and the CS pin is held high when the device is not selected. Use a 0.1 uF decoupling capacitor close to the VCC pin. For write operations, poll the WIP bit or wait 5 ms before initiating the next command to avoid data corruption.
ドロップイン代替品: M95M02-DRMN6TP — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
M95M02-DRWMN6TP
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
M95M02-DRMN6TP
✅ ドロップイン✓ 在庫あり
$0.79 / 個
データシートを見る →25LC1024-I/SN
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CAT25M02VE-GT3
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
M95M02-DRMN6TP 仕様
| メモリサイズ | 2 Mbit (256 Kbyte) |
| メモリ構成 | 262,144 x 8 bits |
| インターフェースタイプ | SPI |
| 最大クロック周波数 | 20 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Page Size | 256 bytes |
| Write Cycle Time | 5 ms (page) |
| Write Endurance | 4 million write cycles |
| Data Retention | 100 years |
| 動作温度範囲 | -40C to +85C |
| パッケージ | SO-8N (150 mil) |
| 実装タイプ | Surface Mount |
| Supply Current (Read) | 2 mA (max) |
| Supply Current (Standby) | 1 uA (max) |
| RoHS ステータス | Compliant |
M95M02-DRMN6TP ピン構成
| ピン 1 | CS — Chip Select (active low) |
| ピン 2 | SCK — Serial Clock |
| ピン 3 | SI — Serial Data Input (MOSI) |
| ピン 4 | VSS — Ground |
| ピン 5 | WC — Write Control (active low) |
| ピン 6 | HOLD — Hold (active low) |
| ピン 7 | SO — Serial Data Output (MISO) |
| ピン 8 | VCC — Power Supply |
主な用途
M95M02-DRMN6TP の用途: 6 件s: Industrial Automation, Smart Meters, Automotive Electronics, IoT Devices, Medical Devices, Networking Equipment.
Industrial Automation
The M95M02-DRMN6TP stores calibration data, configuration parameters, and operational logs in PLCs, motor drives, and sensors. Its 2 Mbit capacity and 4 million write cycles ensure reliable data retention in harsh industrial environments. The SPI interface allows direct connection to microcontrollers, and the wide voltage range (1.8V-5.5V) supports both 3.3V and 5V logic. The 20 MHz clock enables fast data logging, while the 100-year retention ensures long-term reliability. In a typical PLC, the EEPROM stores ladder logic parameters and device settings, with the WC pin protecting critical data during power-up. The SO-8N package fits compact PCBs, and the -40C to +85C temperature range covers most industrial settings. Compared to FRAM, EEPROM offers lower cost and higher density, making it ideal for non-volatile storage in cost-sensitive industrial applications.
おすすめ
Smart Meters
The M95M02-DRMN6TP is used in smart electricity, water, and gas meters to store consumption data, tariff information, and device credentials. Its 2 Mbit capacity can hold months of hourly readings, and the 4 million write cycles support frequent updates. The low standby current (1 uA) extends battery life in battery-powered meters. The SPI interface enables high-speed data transfer to the metering IC, and the wide voltage range accommodates various battery chemistries. In a typical smart meter, the EEPROM stores cumulative energy data, with the WIP bit used to ensure write completion before power-down. The 100-year retention guarantees data integrity over the meter's lifetime. The SO-8N package is ideal for space-constrained meter designs, and the -40C to +85C range covers outdoor installations. Compared to flash memory, EEPROM offers byte-level write capability, essential for updating individual meter readings without erasing entire blocks.
おすすめ
Automotive Electronics
The M95M02-DRMN6TP stores vehicle identification numbers (VIN), diagnostic trouble codes, and calibration data in engine control units (ECUs), airbag systems, and infotainment units. Its high endurance (4 million cycles) and 100-year retention meet automotive reliability requirements. The wide voltage range (1.8V-5.5V) supports both 3.3V and 5V automotive logic, and the -40C to +85C temperature range covers under-hood and cabin environments. The SPI interface allows fast read/write operations for real-time diagnostics. In an ECU, the EEPROM stores adaptive learning parameters, with the WC pin protecting critical data during firmware updates. The SO-8N package is AEC-Q100 qualified (check variant), ensuring automotive-grade quality. Compared to EEPROMs with lower endurance, the M95M02 offers superior write cycling, making it suitable for applications that frequently update data, such as odometer and trip logs.
おすすめ
IoT Devices
The M95M02-DRMN6TP stores device credentials, sensor calibration data, and firmware update images in IoT nodes, smart home devices, and wearables. Its low power consumption (1 uA standby) is critical for battery-powered devices, and the 2 Mbit capacity provides ample storage for configuration and logging. The SPI interface enables efficient communication with low-power MCUs, and the wide voltage range supports various battery voltages. In a typical IoT sensor node, the EEPROM stores the device's unique ID and network credentials, with the WIP bit used to ensure data integrity during write operations. The 100-year retention ensures long-term operation without data loss. The SO-8N package is compact, fitting into small form-factor designs. Compared to flash memory, EEPROM offers simpler write operations and higher endurance, making it ideal for frequent small updates like sensor calibration adjustments.
おすすめ
Medical Devices
The M95M02-DRMN6TP stores patient data, device settings, and calibration information in medical monitors, infusion pumps, and diagnostic equipment. Its high reliability (4 million write cycles, 100-year retention) ensures data integrity in life-critical applications. The wide voltage range and low power consumption are suitable for battery-operated portable devices. The SPI interface allows fast data transfer to the processing unit, and the -40C to +85C range covers clinical environments. In a patient monitor, the EEPROM stores alarm thresholds and patient history, with the WC pin preventing accidental writes. The SO-8N package is suitable for compact medical devices, and the RoHS compliance meets regulatory requirements. Compared to FRAM, EEPROM offers higher density and lower cost, making it a practical choice for non-volatile storage in medical electronics.
おすすめ
Networking Equipment
The M95M02-DRMN6TP stores configuration files, MAC addresses, and firmware images in routers, switches, and network interface cards. Its 2 Mbit capacity can hold complete configuration backups, and the 20 MHz SPI interface enables fast read/write operations during boot-up. The wide voltage range supports both 3.3V and 5V logic, and the high endurance ensures reliable updates. In a network switch, the EEPROM stores the device's MAC address table and port configurations, with the WIP bit used to ensure write completion. The 100-year retention guarantees that configuration data survives power cycles. The SO-8N package is standard in networking hardware, and the -40C to +85C range covers equipment installed in various environments. Compared to NOR flash, EEPROM offers byte-level write capability, making it ideal for updating individual configuration parameters without erasing entire sectors.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: M95M02-DRMN6TP — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | M95M02-DRWMN6TP | 25LC1024-I/SN | CAT25M02VE-GT3 |
|---|---|---|---|---|
| Package | SO-8N | SO-8N | SO-8 | SO-8 |
| Brand | STMicroelectronics | STMicroelectronics | Microchip Technology | onsemi |
| Memory Size | 2 Mbit | 2 Mbit | 1 Mbit | 2 Mbit |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage Range | 1.8V to 5.5V | 1.8V to 5.5V | 2.5V to 5.5V | 1.8V to 5.5V |
| Write Endurance | 4 million cycles | 4 million cycles | 1 million cycles | 1 million cycles |
| Data Retention | 100 years | 100 years | 200 years | 100 years |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
主な差別化要因
- Higher write endurance (4 million cycles) compared to many competitors （vs 25LC1024-I/SN)
- Wider supply voltage range (1.8V to 5.5V) （vs 25LC1024-I/SN)
- Same-brand drop-in compatibility with M95M02-DRWMN6TP （vs M95M02-DRWMN6TP)
設計ノート
Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VCC pin (pin 8) and connect it to the ground plane. For high-speed SPI operation at 20 MHz, keep the SPI traces short and matched in length to minimize signal skew. Use series resistors (e.g., 22 ohm) on SCK, SI, and CS lines to reduce ringing and improve signal integrity.
Ensure the CS pin is held high when the device is not selected to prevent unintended write operations. During write cycles, poll the WIP bit in the status register or wait 5 ms before sending the next command. Do not exceed the absolute maximum ratings, especially the supply voltage (6.5V) and input voltages, to avoid permanent damage.
The M95M02-DRMN6TP has a low standby current of 1 uA, making it suitable for battery-powered applications. To achieve this, ensure the HOLD pin is tied high and the CS pin is high when the device is idle. In deep power-down mode, the device consumes even less current, but wake-up time must be considered in the system design.
コンプライアンス情報
RoHS compliant per STMicroelectronics product page. AEC-Q100 qualification not specified for this variant; check M95M02-DRWMN6TP for automotive grade.
