STMicroelectronics M24C02-RMN6P 2KB EEPROM, SO8N Package with I2C Interface

STMicroelectronics M24C02-RMN6P EEPROM Overview

The STMicroelectronics M24C02-RMN6P is a high-reliability 2KB electrically erasable programmable read-only memory (EEPROM) designed for non-volatile data retention in industrial, consumer, and IoT electronic systems. It integrates an industry-standard I2C (2-wire serial) interface, enabling seamless communication with microcontrollers, microprocessors, and digital components-making it a trusted solution for B2B engineers prioritizing durability, design flexibility, and long-term data integrity.

As a product from STMicroelectronics, a global leader in semiconductor innovation with decades of expertise in memory technologies, the device meets strict quality benchmarks for performance and reliability. For more trusted industrial ICs and memory components, visit IC Manufacturer.

Technical Parameters of M24C02-RMN6P

Key Technical Features of M24C02-RMN6P

• Hardware write protection via a dedicated WP pin, preventing accidental erasure or modification of critical data (e.g., sensor calibration values, user preferences) in high-reliability systems.
• Self-timed write cycles (up to 5ms), eliminating the need for external timing circuits and simplifying software integration for engineers.
• 16-byte page write capability, enabling efficient block data transfers to reduce system latency and lower power consumption during bulk updates.
• Low standby current (typical 1??A at 3V) and low active current (typical 1mA at 3V, 1MHz), optimizing power efficiency for battery-powered devices like portable IoT sensors or medical monitors.
• Unlimited read cycles, ensuring reliable data access without performance degradation over the device??s operational lifetime.

Advantages of M24C02-RMN6P Over Alternative Solutions

Compared to legacy parallel EEPROMs, narrow-voltage-range memory chips, or low-cost non-volatile alternatives, the M24C02-RMN6P delivers three critical benefits for B2B designs:

First, its I2C interface reduces design complexity. Parallel EEPROMs require 8+ data and address pins, but this device uses just two wires (SDA for data, SCL for clock). This cuts PCB trace count by 75%, saving valuable space in compact systems like IoT sensors or wearable consumer electronics-where board real estate is at a premium.

Second, its wide voltage range (1.8V-5.5V) provides unmatched flexibility. Unlike EEPROMs limited to 3.3V or 5V, the M24C02-RMN6P works seamlessly with both legacy 5V industrial controllers and modern 1.8V/3.3V IoT microcontrollers. This eliminates the need for external voltage regulators, reducing component count and lowering overall system costs.

Third, its durability outperforms budget alternatives. Low-cost EEPROMs often offer only 100,000 write cycles and 10?C20 years of data retention, but the M24C02-RMN6P delivers 1 million write cycles and 40 years of retention. This makes it ideal for long-life products like industrial automation equipment or medical devices-where frequent data updates and long-term reliability are non-negotiable.

Typical Applications of M24C02-RMN6P

The M24C02-RMN6P is engineered to solve non-volatile storage challenges across industries. Its key use cases include:

• Internet of Things (IoT): Storing sensor calibration data, network credentials, and short data logs in smart thermostats, environmental monitors, or asset trackers-ensuring accuracy and connectivity across power cycles.
• Industrial Automation: Retaining PLC operational parameters (e.g., setpoints, alarm thresholds) and small process logs to prevent data loss during power outages, ensuring uninterrupted production and easier post-fault analysis.
• Medical Devices: Preserving patient-specific settings (e.g., blood pressure monitor units, glucose meter calibration) and short usage logs in portable medical tools-complying with healthcare standards for data integrity and patient safety.
• Consumer Electronics: Saving user preferences (e.g., audio profiles, display brightness) in wearables (smart watches), smartphones, or portable audio devices-delivering consistent user experiences without reconfiguration after power disruptions.
• Home Appliances: Storing cycle settings (e.g., washing machine spin speed, oven temperature presets) in small appliances-ensuring seamless operation even if power is temporarily lost.

Frequently Asked Questions (FAQ)

What makes the I2C interface a good choice for the M24C02-RMN6P?

The I2C interface uses only two wires, which simplifies PCB design by reducing the number of required connections. It also supports multi-device communication-multiple EEPROMs or sensors can share the same bus, saving space in complex systems like IoT gateways or industrial controllers where component density is high.

How does the write protection feature work, and when should I use it?

The device has a dedicated write protection pin (WP). When tied to VCC, all write/erase operations are disabled; when tied to GND, operations are allowed. Use this feature to protect critical data (e.g., medical device calibration values, industrial process settings) from accidental modification due to software errors or electrical noise.

Can the M24C02-RMN6P operate in low-power battery-powered IoT devices?

Yes, it is an excellent choice for battery-powered IoT devices. Its low standby current (1??A typical) and low active current (1mA typical) minimize power draw, extending battery life. The wide voltage range also works with common IoT battery types (e.g., 3V coin cells, 1.8V lithium-ion), eliminating the need for voltage boosters.

What is the benefit of the 16-byte page write capability?

The 16-byte page write feature allows multiple bytes to be written in a single operation, rather than one byte at a time. This reduces the number of I2C transactions needed for block data transfers, cutting system latency and lowering power consumption-critical for applications like data loggers that need to store multiple sensor readings quickly.

How long will the M24C02-RMN6P retain data, and how many times can I write to it?

It guarantees 40 years of data retention, so stored data (like user settings or calibration values) will remain intact even if the device is powered off for decades. It also supports 1 million write cycles-enough for applications that require daily updates (over 2700 years of use) or hourly updates (over 114 years), ensuring long-term reliability for end products.