M24256X-FCU6T/VF STMicroelectronics Integrated Circuit (BGA) In Stock
STMicroelectronics M24256X-FCU6T/VF is a 256-Kbit I2C EEPROM with configurable device address and software write protection in a 4-ball WLCSP package. Available in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- M24256X-FCU6T/VF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3454(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of M24256X-FCU6T/VF?
- 256-Kbit (32 KB) I2C serial EEPROM offering non-volatile data storage on a 2-wire bus with up to 400 kHz fast-mode operation
- Configurable device address pins enabling up to 8 devices on a single I2C bus without address conflicts
- Software write-protection feature allowing firmware to lock memory regions against accidental overwrites during critical operations
- Ultra-compact 4-ball WLCSP package with sub-millimeter footprint ideal for space-constrained wearable and IoT designs
- Low-voltage operation compatible with 1.7 V to 5.5 V supply rails for broad system compatibility
What is M24256X-FCU6T/VF used for?
The M24256X-FCU6T/VF is used in wearable devices, IoT sensors, and portable medical equipment where ultra-small non-volatile memory with I2C connectivity is required in the tightest PCB footprints. Its configurable address lines allow multiple EEPROM instances on a single bus, supporting applications such as calibration data storage, configuration parameter retention, and firmware settings in multi-node systems. The software write protection makes it ideal for safety-critical applications storing factory calibration or security certificates.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Singapore |
Where can I find the M24256X-FCU6T/VF datasheet?
M24256X-FCU6T/VF Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M24256X-FCU6T/VF?
Compatible alternatives and drop-in replacements for M24256X-FCU6T/VF:
suggested
Frequently Asked Questions
How large is the M24256X-FCU6T/VF memory, and what interface does it use for communication?
The M24256X-FCU6T/VF provides 256 Kbits (32 KB) of non-volatile EEPROM storage accessed via a 2-wire I2C serial bus supporting standard mode (100 kHz) and fast mode (400 kHz) operation. This makes it easy to integrate with virtually any microcontroller with an I2C peripheral.
What advantage does the configurable device address offer when using multiple M24256X-FCU6T/VF devices on the same I2C bus?
The configurable address pins on the M24256X-FCU6T/VF allow up to 8 separate devices to coexist on a single I2C bus by assigning unique 3-bit addresses to each. This is valuable in multi-channel data loggers, distributed sensor nodes, or modular designs requiring 32 KB × 8 = 256 KB of total addressable EEPROM storage.
How does the software write-protection feature of the M24256X-FCU6T/VF protect stored data in embedded systems?
The software write-protection feature allows firmware to lock designated memory regions via a write-protect control mechanism, preventing accidental overwrites during system operation. This is critical for applications storing factory calibration constants, security certificates, or device configuration data that must remain intact across power cycles and firmware updates.
What makes the WLCSP package of the M24256X-FCU6T/VF suitable for compact IoT and wearable designs?
The 4-ball WLCSP (Wafer-Level Chip Scale Package) of the M24256X-FCU6T/VF occupies a sub-millimeter footprint, significantly smaller than SOT or SOIC packages. This minimal PCB area consumption is essential for wearables, hearing aids, smart patches, and other miniaturized IoT devices where every square millimeter of board space is at a premium.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.5100 | $51.00 |
| 250+ | $0.4320 | $108.00 |
| 500+ | $0.4220 | $211.00 |
| 1000+ | $0.4120 | $412.00 |
| 40000+ | $0.3472 | $13886.40 |
| 80000+ | $0.3454 | $27629.60 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit