STMicroelectronics M24C04-RMN6TP 4KB EEPROM, SO8N Package with I2C Interface

STMicroelectronics M24C04-RMN6TP EEPROM Overview

The STMicroelectronics M24C04-RMN6TP is a high-reliability 4KB electrically erasable programmable read-only memory (EEPROM) engineered for non-volatile data retention in mid-scale 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 storage capacity, 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 industrial, consumer, and IoT applications. For more trusted industrial ICs and memory components, visit Fabricante de CI.

Technical Parameters of M24C04-RMN6TP

Key Technical Features of M24C04-RMN6TP

• Proteção de escrita por hardware via a dedicated WP pin, preventing accidental erasure or modification of critical data (e.g., sensor calibration logs, user preferences) in high-reliability systems.
• Ciclos de escrita com temporização automática (até 5 ms), eliminando a necessidade de circuitos de temporização externos e simplificando a integração de software para os engenheiros.
• Capacidade de escrita de página de 16 bytes, permitindo transferências eficientes de dados de bloco para reduzir a latência do sistema e diminuir o consumo de energia durante actualizações em massa.
• 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 medical monitors or IoT gateways.
• Ciclos de leitura ilimitados, garantindo um acesso fiável aos dados sem degradação do desempenho durante o tempo de vida operacional do dispositivo.

Advantages of M24C04-RMN6TP Over Alternative Solutions

Compared to smaller EEPROMs (1KB/2KB), legacy parallel memory chips, or narrow-voltage-range devices, the M24C04-RMN6TP delivers three critical benefits for B2B designs:

First, its 4KB capacity balances storage needs and space efficiency. Smaller EEPROMs force engineers to compromise on data logging or config storage, while larger options (8KB+) waste PCB space and increase cost. The M24C04-RMN6TP is ideal for applications like smart meters or industrial sensors that require mid-scale storage for usage data or multi-setting configurations.

Second, its I2C interface reduces design complexity. Parallel memory chips 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 space in compact systems like IoT gateways or wearable medical devices. It also supports multi-device communication-multiple EEPROMs or sensors can share the same bus, further simplifying layouts.

Third, its durability and flexibility outperform budget alternatives. Low-cost EEPROMs often offer only 100,000 write cycles, 10?C20 years of data retention, or narrow voltage ranges (e.g., 3.3V only). The M24C04-RMN6TP delivers 1 million write cycles, 40 years of retention, and a 1.8V?C5.5V range-making it compatible with both legacy 5V industrial systems and modern 1.8V IoT designs, while ensuring long-term reliability for end products.

Typical Applications of M24C04-RMN6TP

The M24C04-RMN6TP is engineered to solve mid-scale non-volatile storage challenges across industries. Its key use cases include:

• Automação industrial: Storing process logs (e.g., temperature trends, motor runtime) and multi-setting configurations in PLCs or sensor nodes, ensuring data is retained during power outages for post-fault analysis.
• Internet das coisas (IoT): Retaining sensor data logs (e.g., environmental readings over hours/days) and network credentials in IoT gateways, enabling continuous monitoring even if power is temporarily lost.
• Dispositivos médicos: Preserving patient data (e.g., blood pressure trends, glucose levels) and device calibration settings in portable monitors, complying with healthcare standards for data integrity and patient safety.
• Smart Meters (Energy and Power): Storing daily/weekly usage data and billing information, ensuring accurate tracking even during power disruptions and simplifying utility billing processes.
• Eletrónica de consumo: Saving multi-profile settings (e.g., user-specific audio equalizers, display presets) in high-end headphones or smart TVs, delivering personalized experiences without reconfiguration after power cycles.

Perguntas frequentes (FAQ)

Why is the 4KB capacity of the M24C04-RMN6TP a good fit for smart meters?

Smart meters need to store mid-scale data-such as daily energy usage logs, billing periods, and device settings-without wasting space. 1KB/2KB EEPROMs are too small for weekly logs, while 8KB+ options are unnecessary. The 4KB capacity perfectly matches these needs, ensuring efficient storage and cost-effectiveness.

How does the I2C interface simplify design for IoT gateways?

IoT gateways often connect multiple sensors and require compact layouts. The I2C interface uses just two wires, so the M24C04-RMN6TP can share the bus with other I2C devices (e.g., temperature sensors, accelerometers). This reduces the number of PCB traces, saves space, and lowers the risk of signal interference-critical for dense gateway designs.

Can the M24C04-RMN6TP operate in both legacy industrial systems and modern IoT devices?

Yes. Its 1.8V?C5.5V operating range makes it compatible with legacy 5V industrial controllers and modern 1.8V/3.3V IoT microcontrollers. This flexibility eliminates the need to source different EEPROMs for different system generations, simplifying inventory management and reducing design time for engineers.

Quando devo utilizar a função de proteção contra escrita desta EEPROM?

Enable write protection (by tying the WP pin to VCC) when storing data that must not be accidentally modified. For example, in medical devices, protect patient data logs to prevent errors from software glitches; in industrial systems, protect calibration settings to avoid process disruptions from unintended changes.

How long will the M24C04-RMN6TP retain data, and how many times can I update it?

It guarantees 40 years of data retention, so stored data (like calibration settings or usage logs) 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.