STMicroelectronics M24C02-FMN6TP 2KB EEPROM, SO8N Package with I2C Interface

STMicroelectronics M24C02-FMN6TP EEPROM Overview

The STMicroelectronics M24C02-FMN6TP is a high-reliability 2KB electrically erasable programmable read-only memory (EEPROM) built for non-volatile data storage in a wide range of electronic systems. It features an industry-standard I2C (2-wire serial) interface, which enables seamless communication with microcontrollers, microprocessors, and other digital components-making it a go-to choice for B2B engineers and system designers prioritizing simplicity and durability.

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

Technical Parameters of M24C02-FMN6TP

Key Technical Features of M24C02-FMN6TP

• Hardware write protection via a dedicated pin, preventing accidental erasure or modification of critical data (e.g., calibration settings, user preferences).
• Self-timed write cycles (up to 5ms), eliminating the need for external timing circuits and simplifying software design.
• 16-byte page write capability, allowing efficient block data transfers to reduce system latency and power use.
• Low standby current (typical 1??A at 3V) and low active current (typical 1mA at 3V, 1MHz), optimizing power efficiency for battery-powered devices.
• Unlimited read cycles, ensuring reliable data access without degradation over the device??s lifetime.

Advantages of M24C02-FMN6TP Over Alternative Solutions

Compared to discrete non-volatile memory options or older parallel EEPROMs, the M24C02-FMN6TP offers three key advantages for industrial and commercial designs:

First, its I2C interface reduces PCB complexity. Parallel EEPROMs require 8+ data/address pins, while this device uses just 2 wires (SDA for data, SCL for clock)-cutting the number of PCB traces and saving valuable board space. This is a critical benefit for compact designs like IoT sensors or wearable consumer electronics, where space 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-FMN6TP works seamlessly with both legacy 5V systems (e.g., industrial controllers) and modern low-voltage 1.8V/3.3V designs (e.g., IoT microcontrollers). This eliminates the need for external voltage regulators, reducing component count and cost.

Third, its durability outperforms many low-cost alternatives. With 1 million write cycles and 40 years of data retention, it lasts longer than budget EEPROMs (which often offer 100,000 write cycles or less). This makes it ideal for long-life products like industrial automation equipment or medical devices, where frequent data updates and long-term reliability are essential.

Typical Applications of M24C02-FMN6TP

The M24C02-FMN6TP is designed to solve non-volatile storage challenges across multiple industries. Its key use cases include:

• Consumer Electronics: Storing user preferences (e.g., volume, display settings) in smartphones, tablets, or wearables-ensuring settings persist after power cycles.
• Internet of Things (IoT): Retaining sensor calibration data, network credentials, or device IDs in smart thermostats, security cameras, or environmental sensors.
• Industrial Automation: Saving operational parameters (e.g., setpoints, alarm thresholds) in programmable logic controllers (PLCs) or motor drives-preventing data loss during power outages.
• Home Appliances: Storing cycle settings (e.g., wash temperature, spin speed) in washing machines or dishwashers-delivering consistent user experiences.
• Medical Devices: Preserving patient-specific data or device calibration values in portable monitors (e.g., blood pressure cuffs)-ensuring accuracy and compliance with healthcare standards.

Frequently Asked Questions (FAQ)

What is the purpose of the I2C interface in the M24C02-FMN6TP?

The I2C interface uses two wires (SDA and SCL) to communicate with microcontrollers, 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 I2C bus, saving even more space in complex systems.

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

The device has a dedicated write protection pin (WP). When this pin is 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., calibration values) from accidental modification due to software errors or electrical noise-common in industrial or automotive environments.

Can the M24C02-FMN6TP be used in 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 difference between page write and byte write, and why does it matter?

Byte write sends one byte of data per write cycle, while page write sends up to 16 bytes in a single cycle. Page write is faster and more efficient because it reduces the number of I2C transactions needed to transfer large datasets. This cuts system latency and lowers power use-critical for applications like data loggers that need to store multiple sensor readings quickly.

How long will the M24C02-FMN6TP retain data, and how many times can I write to it?

The device guarantees a minimum of 40 years of data retention, meaning stored data will remain intact even if the device is powered off for decades. It also supports a minimum of 1 million write cycles, which is more than enough for most applications-even those requiring daily data updates (1 million cycles would last over 2700 years with one write per day).