STMicroelectronics M24C01-RDW6TP 1KB EEPROM, SO8W Package with I2C Interface

STMicroelectronics M24C01-RDW6TP EEPROM Overview

The STMicroelectronics M24C01-RDW6TP is a compact, high-reliability 1KB electrically erasable programmable read-only memory (EEPROM) designed for non-volatile data retention in space-constrained, high-volume electronic systems. It integrates an industry-standard I2C (2-wire serial) interface, enabling seamless communication with microcontrollers, microprocessors, and digital components-making it a go-to solution for B2B engineers prioritizing size efficiency, manufacturing ease, 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 IC Manufacturer.

Technical Parameters of M24C01-RDW6TP

Key Technical Features of M24C01-RDW6TP

• 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.
• 8-byte page write capability, enabling efficient block data transfers to reduce system latency and lower power consumption during 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 wearables or IoT sensors.
• Unlimited read cycles, ensuring reliable data access without performance degradation over the device??s operational lifetime.

Advantages of M24C01-RDW6TP Over Alternative Solutions

Compared to larger EEPROMs, narrow-body packages, or legacy parallel interfaces, the M24C01-RDW6TP offers three key advantages for B2B designs:

First, its 1KB capacity is perfectly sized for small-scale data needs. Larger EEPROMs (e.g., 2KB or 4KB) waste PCB space and increase cost for applications that only require storing configs, user settings, or calibration data. The M24C01-RDW6TP avoids this waste, making it a cost-effective choice for compact devices like IoT sensors or home appliances.

Second, its SO8W wide-body package improves manufacturing efficiency. Unlike narrow-body SO8 packages (0.95mm pin pitch), the SO8W features a 1.27mm pin pitch. This wider spacing reduces soldering errors (e.g., short circuits) during high-volume assembly, lowering rework costs-a critical benefit for consumer electronics manufacturers scaling to mass production.

Third, its durability outperforms low-cost alternatives. Budget EEPROMs often offer only 100,000 write cycles and 10?C20 years of data retention, but the M24C01-RDW6TP delivers 1 million write cycles and 40 years of retention. This makes it ideal for long-life products like industrial controllers or medical devices, where frequent data updates and long-term reliability are essential.

Typical Applications of M24C01-RDW6TP

The M24C01-RDW6TP is engineered to solve small-scale non-volatile storage challenges across industries. Its key use cases include:

• Internet of Things (IoT): Storing sensor calibration data, network credentials, or device IDs in miniaturized sensors (e.g., environmental monitors, smart light bulbs) to maintain accuracy across power cycles.
• Home Appliances: Retaining cycle settings (e.g., coffee maker brew strength, toaster timer) in small appliances, delivering consistent performance even after power disruptions.
• Consumer Electronics: Saving user preferences (e.g., audio volume, display brightness) in wearables (smart watches) or portable audio devices-ensuring settings persist without reconfiguration.
• Industrial Automation: Storing small-scale operational data (e.g., motor speed setpoints) in compact PLC modules, preventing data loss during power outages.
• Medical Devices: Preserving patient-specific settings (e.g., thermometer mode) in portable tools, complying with healthcare standards for data integrity.

Frequently Asked Questions (FAQ)

Why is the 1KB capacity of the M24C01-RDW6TP useful for IoT devices?

IoT devices often only need to store small datasets like calibration values, network credentials, or device IDs-data that fits perfectly in 1KB. Using a larger EEPROM would waste space and increase cost, while the M24C01-RDW6TP??s size matches these needs, making it ideal for miniaturized IoT sensors.

How does the SO8W package??s wide pin spacing improve manufacturing?

The SO8W package has a 1.27mm pin pitch, wider than the 0.95mm pitch of narrow-body SO8 packages. This wider spacing makes it easier for automated assembly equipment to place and solder the device, reducing the risk of pin shorts or poor solder joints. Fewer defects mean lower rework costs and faster production timelines.

Can the M24C01-RDW6TP operate in low-power battery-powered devices?

Yes, it is an excellent choice for battery-powered devices. Its 1.8V-5.5V voltage range works with common batteries (e.g., 3V coin cells, 1.8V lithium-ion), and its low standby current (1??A typical) minimizes power draw when idle. This extends battery life, a key requirement for remote IoT sensors or wearables.

What is the purpose of the write protection pin, and when should I use it?

The WP (write protection) pin disables write/erase operations when tied to VCC, protecting critical data from accidental modification. Use it in applications where data integrity is vital-for example, storing calibration values in industrial sensors or patient settings in medical devices-to prevent errors from software glitches or electrical noise.

How long will the M24C01-RDW6TP retain data, and how many times can I write to it?

It guarantees 40 years of data retention, so stored data remains intact even if the device is powered off for decades. It also supports 1 million write cycles, which is more than enough for most applications-even with daily writes, this would last over 2700 years, ensuring long-term reliability for end products.