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Home > Products > Integrated Circuits (ICs) > Memory > Memory

STMicroelectronics M24512E-FMC6TG

Name: M24512E-FMC6TG
Brand: STMicroelectronics
SKU: M24512E-FMC6TG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M24512E-FMC6TG

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 8-UFDFN Exposed Pad

Datasheet:: M24512E-FMC6TG.pdf

Description:: IC EEPROM 512KBIT I2C 8UDFN

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Inventory:2,495

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Product details

Overview

M24512E-FMC6TG from STMicroelectronics is a 512-Kbit (64-Kbyte) I²C-compatible EEPROM organized as 64 K × 8 bits, operating from 1.6 V to 5.5 V with support for 1 MHz Fast-mode Plus, 400 kHz Fast-mode, and 100 kHz Standard-mode I²C buses. It features configurable device address (CDA), software write protection (SWP), and a dedicated 128-byte identification page for secure parameter storage - deployed in industrial control modules for firmware revision tracking and calibration data retention.

For engineers reviewing the M24512E-FMC6TG datasheet, M24512E-FMC6TG pinout, M24512E-FMC6TG application, or M24512E-FMC6TG equivalent, key selection considerations include its 3.1 ms typical page write time, 4 million write cycles, 200-year data retention, ultralow 330 nA standby current, and hardware/software dual-write protection architecture across SO8N, TSSOP8, and UFDFPN8 packages.

Technical Context

The M24512E-FMC6TG implements a full I²C target interface with open-drain SDA and input-only SCL, supporting standard, fast, and fast-plus timing modes. Its internal architecture includes an HV generator and sequencer for EEPROM programming, ECC-enabled sense amplifiers, and dedicated register banks for device type identifier (DTI), configurable device address (CDA), and software write protection (SWP).

Three user-accessible 8-bit registers - DTI (read-only, factory-locked), CDA (reconfigurable until DAL=1), and SWP (block-protection configurable via BP0/BP1 and WPA/WPL bits) - enable flexible system-level memory management. The identification page (128 bytes) supports permanent read-only locking after programming, and WC pin provides hardware-level global write disable independent of register settings.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	512-Kbit (64-Kbyte), organized as 64 K × 8 bits - supports firmware metadata, calibration tables, and configuration storage in space-constrained embedded nodes.
I²C Speed Support	Up to 1 MHz (Fast-mode Plus) - enables high-throughput parameter updates in real-time diagnostics systems without bus contention.
Write Cycle Time	Byte/page write ≤ 4 ms (typ. 3.1 ms) - reduces host MCU wait time during field-upgrade sequences and improves system responsiveness.
Endurance & Retention	4 million write cycles / 200-year data retention - meets long-life requirements for industrial sensors and medical devices with infrequent but critical writes.
Supply Voltage Range	1.6 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V logic domains without level-shifting in mixed-voltage PCBs.
Operating Temperature	–40 °C to +85 °C - qualified for deployment in automotive body control modules and outdoor IoT gateways.
Standby Current	330 nA (typ.) - extends battery life in always-on edge nodes powered by coin cells or energy-harvesting sources.

Pinout & Package

Package: UFDFPN8 (2 mm × 3 mm, ECOPACK2), lead-free, halogen-free, RoHS-compliant surface-mount package optimized for high-density PCB layouts and automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
1 - SDA	Serial Data I/O	Open-drain bidirectional bus line; requires external pull-up to VCC; supports wired-AND with other I²C targets on same bus segment.
2 - VSS	Ground Reference	Primary return path for VCC supply and internal logic; must be low-impedance connection to minimize noise coupling into EEPROM array.
3 - SCL	Serial Clock Input	Asynchronous clock input from master; defines timing for data sampling and ACK generation; no internal pull-up.
4 - WC	Hardware Write Control	Active-high global write disable; overrides all software protections (SWP/CDA); prevents accidental writes during power transients or firmware faults.
5–6 - NC	No Connect	Unbonded die pads; must remain unconnected on PCB to avoid parasitic leakage or ESD path disruption.
7 - VCC	Supply Voltage	1.6–5.5 V DC input; requires local 10–100 nF decoupling capacitor near pins 2 and 7 to suppress switching noise during internal write cycles.
8 - NC	No Connect	Unbonded pad; floating or grounded connection prohibited per STMicroelectronics design guidelines.

Key Features

Feature	Design Value
Configurable Device Address Register (CDA)	8-bit register with C2/C1/C0 bits enabling up to 8 unique I²C addresses on shared bus; DAL bit allows irreversible lock to prevent runtime reconfiguration errors.
Software Write Protection (SWP)	Nonvolatile 4-bit register (WPA, BP1, BP0, WPL) enabling selective block protection (¼ to full memory) and permanent lock to prevent unauthorized firmware overwrite.
Identification Page	128-byte dedicated memory page with independent read/write access and permanent read-only lock capability - ideal for storing cryptographic keys or device-specific calibration coefficients.
Enhanced Reliability	Integrated power-on-reset (POR), wake-up time <5 μs, and >4 million write cycles ensure robust operation in noisy industrial environments with frequent power cycling.

Applications

Industrial Sensor Calibration

Medical Device Configuration Storage

Use Scenario: Storing temperature/pressure sensor offset and gain coefficients during factory calibration and field recalibration.

IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed via I²C during boot and maintenance mode; write-protected via SWP and WC to prevent corruption.

Use Value: Enables traceable, tamper-resistant calibration history with 200-year retention - satisfying ISO 13485 audit requirements for Class II medical equipment.

Use Scenario: Holding patient-specific therapy parameters (e.g., infusion rate limits, alarm thresholds) across power cycles in portable infusion pumps.

IC Role / Device Role / Timing Role: Secure configuration store with hardware (WC) and software (SWP) dual-lock; accessed only during setup or service mode.

Use Value: Guarantees parameter persistence and integrity over 10+ years of clinical use, meeting IEC 62304 safety-critical data retention mandates.

Automotive Body Control Module

Smart Meter Firmware Metadata

Use Scenario: Recording door lock actuator learning positions, mirror memory settings, and lighting profiles in 12 V vehicle networks.

IC Role / Device Role / Timing Role: I²C EEPROM interfaced to 3.3 V microcontroller; operates across –40 °C to +85 °C ambient with 1.6–5.5 V supply tolerance.

Use Value: Eliminates need for external voltage translators; 330 nA standby current minimizes parasitic drain on vehicle battery during sleep mode.

Use Scenario: Storing firmware version, meter serial number, tariff schedule timestamps, and tamper-event logs in ANSI C12.22-compliant electricity meters.

IC Role / Device Role / Timing Role: Secure, long-life nonvolatile memory with identification page locked for cryptographic seed storage and anti-cloning protection.

Use Value: Supports 200-year data retention and 4M write cycles required for 20+ year utility infrastructure deployments with remote firmware updates.

Equivalent & Alternatives

The following parts are listed as comparable options for similar I²C EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AT24C512-SSHL-T (Microchip)	512-Kbit I²C EEPROM; no configurable device address register or identification page; supports only 400 kHz max clock.	Lacks CDA/SWP registers and dedicated ID page - unsuitable for systems requiring multi-device addressing or secure parameter partitioning.	Select when basic EEPROM functionality suffices and cost sensitivity outweighs advanced configuration/security needs.
BR24T512FJ-WE2 (ROHM)	512-Kbit I²C EEPROM; includes software write protection but no WC pin or identification page; 1.7–5.5 V supply range.	Missing hardware write control (WC) and ID page - limits use in safety-critical or cryptographic key storage applications.	Prefer for consumer-grade designs where hardware-level write disable and secure parameter isolation are not required.

Compared with AT24C512-SSHL-T and BR24T512FJ-WE2, the M24512E-FMC6TG uniquely integrates hardware write control (WC), configurable device addressing (CDA), and a lockable identification page - delivering superior system-level security, bus scalability, and long-term data integrity for industrial and medical applications.

Availability

M24512E-FMC6TG is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration storage, and automotive body control modules requiring stable component supply, long-life data retention, and certified RoHS/ECOPACK2 compliance.

Supply support for M24512E-FMC6TG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.

The M24512E-F series belongs to ST's high-reliability serial EEPROM product line, engineered specifically for mission-critical applications demanding extended data retention, enhanced ESD/latch-up immunity, and flexible memory protection architectures.

FAQ

What is the function of the WC pin on M24512E-FMC6TG?

The WC (Write Control) pin is an active-high hardware signal that globally disables all write operations to the entire memory array, regardless of software write protection settings or register configurations. When driven high, the device acknowledges device select and address bytes but rejects data bytes with a NACK, preventing accidental writes during power-up, brown-out, or firmware anomalies. This feature operates independently of the SWP register and CDA lock status.

How does the identification page differ from main memory?

The identification page is a dedicated 128-byte memory region accessible via unique I²C command codes (device type identifier = 1011, MSB address = 000). Unlike main memory, it supports permanent read-only locking after programming - once locked, write attempts return NACK and no data is stored. It is intended for sensitive data like cryptographic seeds or calibration certificates, and its lock state cannot be reversed, ensuring immutable integrity.

Can the configurable device address be changed after delivery?

Yes, the configurable device address (CDA) can be reprogrammed via I²C commands as long as the Device Address Lock (DAL) bit remains 0. Once DAL is set to 1 - either by firmware command or factory preprogramming - the CDA register becomes permanently read-only and cannot be modified. For M24512E-FMC6TG, the default CDA value is 00000000 (C2=C1=C0=0, DAL=0), allowing field-address customization before lock activation.

What I²C clock frequencies does M24512E-FMC6TG support?

M24512E-FMC6TG supports three I²C bus modes: Standard-mode (100 kHz), Fast-mode (400 kHz), and Fast-mode Plus (1 MHz). Timing compliance is guaranteed across the full operating voltage range (1.6–5.5 V) and temperature range (–40 °C to +85 °C), with specified t_LOW, t_HIGH, and t_SU;DAT values validated per I²C specification Rev. 6. Additionally, the device features fast wake-up (<5 μs) to ensure minimal latency after STOP condition detection.

M24512E-FMC6TG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-UFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

Memory Type:: Non-Volatile

Memory Format:: EEPROM

Technology:: EEPROM

Memory Size:: 512Kbit

Memory Organization:: 64K x 8

Memory Interface:: I2C

Clock Frequency:: 1 MHz

Write Cycle Time - Word, Page:: 4ms

Access Time:: 450 ns

Voltage - Supply:: 1.6V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-UFDFPN (2x3)

M24512E-FMC6TG FAQ

1.How can I place an order for M24512E-FMC6TG through Aetrix?

Please submit a Request for Quotation (RFQ) for M24512E-FMC6TG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for M24512E-FMC6TG reliable?

The price and inventory of M24512E-FMC6TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24512E-FMC6TG is usually 5 days.

3.What payment methods are accepted for M24512E-FMC6TG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24512E-FMC6TG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M24512E-FMC6TG?

M24512E-FMC6TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M24512E-FMC6TG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for M24512E-FMC6TG?

For technical support, including M24512E-FMC6TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24512E-FMC6TG requirements.

6.How does Aetrix verify that M24512E-FMC6TG is sourced from the original manufacturer or authorized distributors?

All M24512E-FMC6TG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M24512E-FMC6TG meets industry standards.

7.What is the process for return or replacement of M24512E-FMC6TG?

All M24512E-FMC6TG units undergo pre-shipment inspection (PSI). If there is an issue with M24512E-FMC6TG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The M24512E-FMC6TG part is unused and in its original packaging.

Return procedure for M24512E-FMC6TG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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