M95M01-RMN6TP - 1Mbit SPI EEPROM | STMicroelectronics
MPN: M95M01-RMN6TP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for M95M01-RMN6TP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M95M01-RMN6TP
✅ Drop-In✓ 99,999 In Stock
$0.79 / Unit
View Datasheet →M95M01-RMN6TP
✅ Drop-In✓ 99,999 In Stock
$0.79 / Unit
View Datasheet →M95M01-RMN6TP
✅ Drop-In✓ 99,999 In Stock
$0.79 / Unit
View Datasheet →M95M01-RMN6TP Maximum Ratings & Electrical Characteristics
| Memory Size | 1 Mbit (128 Kbyte) |
| Organization | 131,072 x 8 bits |
| Interface Type | SPI |
| Maximum Clock Frequency | 16 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Write Cycle Time | 5 ms (typical) |
| Page Size | 256 bytes |
| Write Endurance | 4 million write cycles per byte |
| Data Retention | 200 years at 55°C |
| Operating Temperature Range | -40°C to +85°C |
| Package | SO-8N (SOIC-8) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| SPI Modes | Mode 0 and Mode 3 |
| Write Protect | Yes (W pin) |
| Hold Pin | Yes (HOLD pin) |
M95M01-RMN6TP Pin Configuration
| Pin 1 | S — Chip Select (active low) |
| Pin 2 | C — Serial Clock |
| Pin 3 | D — Serial Data Input |
| Pin 4 | Q — Serial Data Output |
| Pin 5 | W — Write Protect (active low) |
| Pin 6 | VSS — Ground |
| Pin 7 | HOLD — Hold (active low) |
| Pin 8 | VCC — Power supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
M95M01-RMN6TP is suitable for 6 applications: Industrial Automation Parameter Storage, Smart Metering Data Logging, Medical Device Calibration Data, Automotive Electronics (Non-Safety-Critical), IoT Device Configuration Storage, Test and Measurement Equipment.
Industrial Automation Parameter Storage
The M95M01-RMN6TP provides reliable non-volatile storage for industrial automation equipment, such as PLCs and motor drives. Its 4 million write cycle endurance ensures frequent parameter updates without wear-out, while the 2.5V to 5.5V supply range allows direct interfacing with both 3.3V and 5V microcontrollers. In a typical PLC, the EEPROM stores configuration settings, calibration data, and fault logs. The SPI interface enables high-speed read/write operations, and the 256-byte page size allows efficient multi-byte writes. The wide operating temperature range (-40°C to +85°C) ensures operation in harsh factory environments. Compared to flash memory, the EEPROM offers byte-level erase/write granularity, which is essential for updating individual parameters without rewriting entire blocks. The 200-year data retention guarantees long-term reliability for critical settings. Designers should ensure proper decoupling on the VCC pin and control the Write Protect pin to prevent accidental writes during power-up or brownout conditions.
Recommended
Smart Metering Data Logging
The M95M01-RMN6TP is ideal for smart metering applications, where it stores consumption data, calibration constants, and event logs. Its high write endurance (4 million cycles) supports frequent data logging intervals, and the 1-Mbit capacity provides ample storage for extended logging periods. The SPI interface allows the metering microcontroller to quickly read and write data, while the low power consumption in standby mode helps meet energy efficiency requirements. In a typical smart meter, the EEPROM is connected to the main MCU via SPI, with the Write Protect pin used to lock calibration data during normal operation. The wide voltage range (2.5V to 5.5V) accommodates battery-backed systems that may operate at lower voltages. The 200-year data retention ensures that billing data is preserved for the meter's lifetime. Designers should consider using the HOLD pin to pause communication during high-priority interrupts, and ensure the SPI bus is properly terminated to avoid data corruption.
Recommended
Medical Device Calibration Data
The M95M01-RMN6TP is well-suited for medical devices that require reliable storage of calibration data, patient settings, and device configuration. Its high data retention (200 years) ensures that critical calibration values are preserved for the device's lifetime, and the 4 million write cycle endurance supports repeated recalibration. The SPI interface enables fast data transfer, and the small SO-8N package is ideal for space-constrained medical devices. In a typical patient monitor, the EEPROM stores calibration coefficients for sensors and alarm thresholds. The wide operating temperature range (-40°C to +85°C) covers clinical environments. The device's RoHS compliance is essential for medical equipment sold in the EU. Designers should implement a checksum or CRC in firmware to detect data corruption, and use the Write Protect pin to prevent accidental writes during firmware updates. The HOLD pin can be used to suspend communication during critical timing operations.
Recommended
Automotive Electronics (Non-Safety-Critical)
The M95M01-RMN6TP is used in automotive electronics for non-safety-critical functions such as storing infotainment settings, radio presets, and seat position memory. Its wide voltage range (2.5V to 5.5V) is compatible with automotive power rails, and the high write endurance supports frequent adjustments by the user. The SPI interface allows integration with automotive microcontrollers, and the SO-8N package is robust for under-dash environments. In a typical infotainment system, the EEPROM stores user preferences and last-played media information. The operating temperature range (-40°C to +85°C) covers automotive cabin conditions. While not AEC-Q100 qualified, it is suitable for non-safety-critical applications. Designers should ensure the device is protected from voltage transients with appropriate filtering, and use the Write Protect pin to prevent corruption during ignition cycles. The HOLD pin can be used to pause communication during CAN bus activity.
Recommended
IoT Device Configuration Storage
The M95M01-RMN6TP is ideal for IoT devices that need to store configuration parameters, network credentials, and sensor calibration data. Its low power consumption and wide voltage range make it suitable for battery-powered devices, and the SPI interface allows efficient communication with low-power MCUs. In a typical IoT sensor node, the EEPROM stores device ID, network keys, and sampling intervals. The 1-Mbit capacity provides ample space for firmware updates or data buffering. The high write endurance supports frequent configuration changes, and the 200-year data retention ensures long-term reliability. The SO-8N package is compact for space-constrained designs. Designers should implement secure storage of network credentials, possibly with encryption, and use the Write Protect pin to prevent unauthorized writes. The HOLD pin can be used to pause communication during low-power sleep modes.
Recommended
Test and Measurement Equipment
The M95M01-RMN6TP is used in test and measurement equipment to store calibration constants, instrument settings, and measurement logs. Its high accuracy and reliability ensure that calibration data is preserved, and the SPI interface allows fast data transfer for instrument configuration. In a typical digital multimeter, the EEPROM stores calibration coefficients for voltage and current ranges. The wide voltage range (2.5V to 5.5V) is compatible with internal power supplies, and the operating temperature range (-40°C to +85°C) covers lab and field environments. The 4 million write cycle endurance supports frequent recalibration, and the 200-year data retention ensures long-term stability. Designers should use the Write Protect pin to lock calibration data during normal operation, and implement a software write-protect mechanism to prevent accidental writes. The HOLD pin can be used to pause communication during high-speed measurements.
Recommended
Recommended Products Summary
Engineering reference data for M95M01-RMN6TP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M95M01-RMN6TP | M95M01-RMN6TP | M95M01-RMN6TP |
|---|---|---|---|---|
| Package | SO-8N | SO-8N | SO-8N | SO-8N |
| Memory Size | 1 Mbit | 1 Mbit | 1 Mbit | 1 Mbit |
| Interface | SPI | SPI | SPI | SPI |
| Max Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
| Write Endurance | 4 million cycles | 4 million cycles | 4 million cycles | 4 million cycles |
| Data Retention | 200 years | 200 years | 200 years | 200 years |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
Key Differentiators
- High write endurance of 4 million cycles (vs M95M01-RMN6TP)
- Wide supply voltage range of 2.5V to 5.5V (vs M95M01-RMN6TP)
- 200-year data retention (vs M95M01-RMN6TP)
Design Notes
Place a 0.1uF decoupling capacitor as close as possible to the VCC pin (pin 8) and a 4.7uF bulk capacitor nearby. Ensure the ground pin (VSS) is connected to a solid ground plane. For SPI signals, keep traces short and matched in length to minimize skew. Use series resistors (e.g., 33 ohm) on S, C, D lines to reduce ringing if the bus is long.
The Write Protect (W) pin must be tied high (VCC) to enable normal write operations, or controlled by the MCU. If left floating, the device may enter an undefined state. The HOLD pin should be pulled high if unused. Ensure the Chip Select (S) pin is high during power-up and power-down to avoid accidental writes. Also, verify that the SPI mode matches (Mode 0 or 3) to prevent communication errors.
The M95M01-RMN6TP operates from 2.5V to 5.5V. During write operations, the current can spike; ensure the power supply can handle transient currents. If the device is used in a battery-powered system, consider a low-dropout regulator to maintain stable voltage. The device has a standby current of [DATA_NEEDED: standby current] and a write current of [DATA_NEEDED: write current].
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified. REACH compliance assumed based on ST's general compliance, but not explicitly stated in the provided data.
