STMicroelectronics M24128-BRMN6TP 128Kbit Low-Power EEPROM with I²C Interface for Industrial and IoT Applications
Brand Name:ST
Model Number:M24128-BRMN6TP
Minimum Order Quantity:1pcs
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Product Introduction of STMicroelectronics M24128-BRMN6TP EEPROM
1. Product Overview
STMicroelectronics M24128-BRMN6TP is a high-reliability 128Kbit
(16K × 8-bit) serial electrically erasable programmable read-only
memory (EEPROM) designed for non-volatile data storage
applications. As a key member of ST's M24 series EEPROMs, it adopts
advanced CMOS process technology and integrates an I2C
(Inter-Integrated Circuit) two-wire serial interface, enabling
simple and efficient communication with microcontrollers (MCUs) and
embedded systems. Featuring low power consumption, wide operating
voltage range, robust data retention capability, and flexible write
protection functions, this EEPROM ensures stable storage of
critical data such as configuration parameters, calibration data,
and user settings. Compliant with industrial-grade reliability
standards, it is widely used in industrial control, consumer
electronics, automotive electronics, medical devices, and Internet
of Things (IoT) nodes, providing long-term non-volatile data
storage solutions for diverse embedded scenarios.
2. Core Electrical & Mechanical Parameters
Category | Parameter | Value | Notes |
|---|---|---|---|
Storage & Interface Characteristics | Storage Capacity | 128 Kbit (16,384 × 8 bits) | Adequate capacity for storing configuration data, logs, and
calibration parameters |
Communication Interface | I2C Bus (2-Wire Serial Interface) | Supports Standard Mode (100 kHz) and Fast Mode (400 kHz); 7-bit
slave address | |
Data Retention Period | ≥ 200 Years (at 85 °C) | Ensures long-term preservation of critical non-volatile data | |
Endurance (Write/Erase Cycles) | ≥ 1,000,000 Cycles | High cycle life for applications requiring frequent data updates | |
Power & Voltage | Supply Voltage Range | 1.7 V ~ 5.5 V DC | Wide voltage compatibility for 1.8 V, 3.3 V, and 5 V embedded
systems |
Operating Current (Active Mode) | Typical 1 mA (Fast Mode, 5 V) | Low active power consumption for energy-sensitive applications | |
Standby Current | Typical 0.1 µA (5 V, Power-Down Mode) | Ultra-low standby power to extend battery life in portable devices | |
Protection & Environmental | Write Protection | Partial (1/4, 1/2, Full Array) or Full Chip Protection via WP Pin | Prevents accidental overwriting of critical data |
Operating Temperature Range | -40 °C ~ +125 °C (Industrial Grade) | Adapts to harsh environments with extreme temperature fluctuations | |
Package Type | 8-pin SOIC (Small Outline Integrated Circuit) | 3.91 mm × 4.90 mm, 1.27 mm pin pitch, compact surface-mount package | |
Reliability | ESD Protection | ±4 kV (HBM), ±200 V (MM) | Robust electrostatic discharge protection during assembly and
operation |
Latch-Up Immunity | ≥ 100 mA | Prevents latch-up under extreme input conditions |
3. Core Functional Features
- 128Kbit Storage Capacity: 16,384 × 8-bit storage structure provides sufficient space for storing multi-type data such as device configuration parameters, user preferences, calibration coefficients, and operation logs—eliminating the need for multiple low-capacity EEPROMs and simplifying system design.
- Versatile I2C Interface: Supports I2C Standard Mode (100 kHz) and Fast Mode (400 kHz) to match different data transmission speed requirements. The 7-bit slave address allows up to 8 M24128-BRMN6TP devices to be cascaded on a single I2C bus, reducing PCB wiring complexity in multi-storage applications.
- Exceptional Reliability: ≥1,000,000 write/erase cycles and ≥200-year data retention (at 85 °C) ensure long-term stable data storage—critical for applications requiring persistent data preservation (e.g., industrial equipment calibration data, automotive mileage records).
- Flexible Write Protection: The dedicated WP (Write Protect) pin enables partial (1/4, 1/2, full array) or full chip write protection. This function prevents accidental overwriting of critical data (e.g., factory calibration parameters) while allowing updates to non-protected areas, enhancing data security.
- Wide Voltage & Low Power: 1.7 V ~ 5.5 V supply voltage range supports seamless integration with 1.8 V, 3.3 V, and 5 V embedded systems without voltage level translators. Ultra-low standby current (0.1 µA typical) extends battery life in portable devices such as IoT sensors and wearable electronics.
- Industrial-Grade Durability: -40 °C ~ +125 °C operating temperature range and 8-pin SOIC rugged package enable stable operation in harsh environments such as industrial workshops, automotive engine bays, and outdoor IoT nodes. Robust ESD protection (±4 kV HBM) ensures reliability during handling and operation.
- Easy Integration: Compact SOIC package and standard I2C pinout (SDA, SCL, VCC, GND, WP) simplify PCB layout. No external components required for basic operation, reducing bill of materials (BOM) cost and accelerating product development cycles.
4. Typical Application Scenarios
4.1 Industrial Control & Automation
Used in programmable logic controllers (PLCs), industrial sensors,
and motion control systems to store calibration parameters (e.g.,
sensor zero-point data, motor speed coefficients), device
configuration information, and operation logs. The flexible write
protection prevents calibration data from being accidentally
modified, while the industrial-grade temperature range ensures
stable operation in factory environments with large temperature
fluctuations.
4.2 Consumer Electronics
Applied in smart home devices (e.g., smart thermostats, air
conditioners), wearable electronics (e.g., fitness trackers), and
digital appliances (e.g., washing machines, printers). It stores
user preferences (e.g., temperature settings, mode selections),
device serial numbers, and usage statistics. The low standby
current extends battery life in portable wearables, and the compact
SOIC package fits into small form-factor products.
4.3 Automotive Electronics
Used in automotive body control modules (BCMs), instrument
clusters, and infotainment systems to store vehicle configuration
data (e.g., seat position memory, lighting modes), mileage records,
and fault codes. The -40 °C ~ +125 °C temperature range adapts to
extreme automotive environments, and the high write/erase cycle
life withstands frequent data updates (e.g., fault code logging).
4.4 Medical Equipment
Applied in portable medical devices (e.g., blood glucose meters,
blood pressure monitors) and clinical equipment (e.g., diagnostic
analyzers) to store patient data (e.g., measurement records),
device calibration parameters, and factory certification
information. The reliable data retention and write protection
ensure the integrity of critical medical data, complying with
medical industry data security requirements.
4.5 Internet of Things (IoT) & Wireless Sensors
Used in wireless sensor networks (WSNs), environmental monitoring
nodes, and smart meters to store sensor calibration data, network
configuration information (e.g., MAC addresses), and collected
environmental data (e.g., temperature, humidity logs). The
ultra-low standby current enables years of operation on a single
coin cell battery, and the I2C interface integrates seamlessly with
low-power IoT MCUs.
STMicroelectronics M24128-BRMN6TP 128Kbit Low-Power EEPROM with I²C Interface for Industrial and IoT Applications
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