M24128-BFMB6TG STMicroelectronics Integrated Circuit (Other) In Stock
M24128-BFMB6TG is a 128 Kbit I2C serial EEPROM from STMicroelectronics with 8-bit data width and a 400 kHz bus speed. It delivers 1,000,000 write/erase cycles and 40-year data retention in an SO-8 package. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- M24128-BFMB6TG Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of M24128-BFMB6TG?
- 128 Kbit (16 KB) storage with 8-bit wide memory array accessible over a standard I2C bus at 400 kHz
- 1,000,000 write/erase cycle endurance ensuring long service life in high-update embedded logging applications
- 40-year minimum data retention guaranteeing configuration and calibration data persists across product lifetimes
- Industry-standard SO-8 footprint with I2C address pins allowing up to 8 devices on a single 2-wire bus
What is M24128-BFMB6TG used for?
The M24128-BFMB6TG is widely used in industrial and consumer electronics to store non-volatile configuration data, calibration coefficients, and firmware parameters that must survive power cycles. Its I2C interface at 400 kHz allows microcontrollers from any family to access the 16 KB memory using just 2 signal lines, minimising GPIO consumption. It is also deployed in smart meters, wearable medical devices, and HVAC controllers where long data-retention life and high write endurance are required across multi-year product deployments.
What are the specifications of M24128-BFMB6TG?
| YTEOL | 6 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 40 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-XDSO-N8 |
| JESD-609 Code | e4 |
| Memory Density | 131072bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 16384words |
| Number of Words Code | 16000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 16KX8 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SOLCC8,.11,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
Where can I find the M24128-BFMB6TG datasheet?
M24128-BFMB6TG Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M24128-BFMB6TG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many write cycles does M24128-BFMB6TG support before data integrity degrades?
The M24128-BFMB6TG is rated for 1,000,000 write/erase cycles per memory cell, which is sufficient for applications that update stored parameters multiple times per day over a 10-year product life without exceeding the endurance limit. Designers logging data at 100 writes per day would require approximately 27 years to exhaust the rated cycle count.
What I2C clock speed does M24128-BFMB6TG support, and does it work with 5 V microcontrollers?
The device supports the I2C Fast Mode bus at 400 kHz, covering both 100 kHz Standard Mode and 400 kHz Fast Mode hosts. It operates from 1.8 V to 5.5 V, making it directly compatible with 3.3 V and 5 V microcontrollers without level-shifting circuitry, which reduces BOM cost and board complexity.
How long will M24128-BFMB6TG retain stored data without power applied?
STMicroelectronics guarantees a minimum data retention time of 40 years at room temperature, which exceeds the typical 10- to 15-year design life of most industrial and consumer products. This retention figure holds over the full operating temperature range, ensuring calibration and configuration data remain intact even after extended shelf storage.
How many M24128-BFMB6TG devices can share the same I2C bus in a multi-sensor board design?
Up to 8 M24128-BFMB6TG devices can coexist on a single 2-wire I2C bus because each device has 3 hardware address select pins (A0, A1, A2), providing 8 unique 7-bit addresses with the fixed upper nibble 1010. This allows a total addressable storage of 128 KB per bus using only the SDA and SCL signal lines.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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