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STMicroelectronics M24512-DFMC6TG
- Part No.:
- M24512-DFMC6TG
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
M24512-DFMC6TG.pdf
- Description:
- IC EEPROM 512KBIT I2C 8UFDFPN
- Quantity:
- Payment:
- Shipping:
Inventory:9,079
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Product details
Overview
M24512-DFMC6TG from STMicroelectronics is a 512-Kbit (64 Kbyte) I²C-compatible EEPROM organized as 64 K × 8 bits, operating from 1.7 V to 5.5 V with 1 MHz clock support, featuring 128-byte page write, identification page with permanent lock capability, and ECOPACK2®-compliant UFDFPN8 (2×3 mm) package for space-constrained industrial control modules.
For engineers reviewing the M24512-DFMC6TG datasheet, M24512-DFMC6TG pinout, M24512-DFMC6TG application, or M24512-DFMC6TG equivalent, key selection criteria include supply voltage range (1.7–5.5 V), identification page lockability, WC-controlled full-array write protection, and compatibility with 100 kHz / 400 kHz / 1 MHz I²C bus modes in embedded systems requiring long-term data retention and high endurance.
Technical Context
The M24512-DFMC6TG implements a slave-only I²C interface with hardware-based chip enable (E0–E2) addressing and write control (WC) input that disables all write operations when high. It uses internal charge pump circuitry to support EEPROM programming across its full 1.7–5.5 V supply range without external high-voltage sources.
Memory organization includes standard 64 Kbyte array plus a dedicated 128-byte identification page - accessible via distinct device select code (1011b) - which supports one-time permanent locking into read-only mode using a specific lock instruction with A10 = 1 and data byte pattern xxxx xx1x.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 512 Kbit (64 Kbyte), organized as 64 K × 8 bits - enables storage of firmware parameters, calibration data, or device configuration in resource-limited microcontroller systems. |
| I²C speed modes | Supports 100 kHz, 400 kHz, and 1 MHz - allows integration into both legacy and high-speed I²C buses without clock stretching penalties. |
| Page size | 128 bytes - matches common MCU DMA burst lengths and reduces write transaction overhead versus byte-write-only devices. |
| Write time | ≤5 ms for byte or page write - ensures deterministic timing for real-time logging and avoids unpredictable delays during critical system events. |
| Data retention | 200+ years at +25 °C - guarantees nonvolatile storage integrity over full product lifecycle in unattended equipment. |
| Endurance | 4 million write cycles per memory location - supports frequent field-updatable parameter sets in industrial HMI or sensor nodes. |
| Operating temperature | −40 °C to +85 °C - qualified for deployment in automotive body electronics, industrial PLCs, and outdoor metering hardware. |
| Supply voltage | 1.7 V to 5.5 V - interoperable with 1.8 V logic domains and legacy 3.3 V/5 V systems without level-shifting. |
Pinout & Package
UFDFPN8 (2 × 3 mm) package with exposed thermal pad (ECOPACK2® compliant); 0.5 mm pitch; wettable flank leads for automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E0, E1, E2 | Chip enable address inputs | Set lower 3 bits of 7-bit I²C slave address (1010xxxR/W or 1011xxxR/W); tied high/low to configure up to 8 devices on same bus. |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up; shares bus with other I²C slaves and master; supports ACK/NACK handshake. |
| SCL | Serial clock input | Master-generated clock signal; sampled on rising edge for data capture; controls timing of all read/write transactions. |
| WC | Write control input | Hardware write protect: drives high to disable all writes to main array and ID page; floating or low enables write access. |
| VCC | Power supply | Single 1.7–5.5 V supply; decoupling capacitor (10–100 nF) required near pins to suppress switching noise during internal write cycles. |
| VSS | Ground reference | Return path for VCC; must be low-impedance connection to minimize ground bounce during high-current charge pump operation. |
Key Features
| Feature | Design Value |
|---|---|
| Identification page with lock | 128-byte dedicated area writable and permanently lockable to prevent tampering of calibration constants or security keys. |
| Enhanced ECC | On-the-fly single-bit error correction per 4-byte group - improves reliability of stored data without software overhead or user intervention. |
| ECOPACK2® packaging | Halogen-free, RoHS-compliant UFDFPN8 with wettable flanks - supports automated optical inspection and high-yield reflow assembly in volume production. |
| Wide VCC range | 1.7–5.5 V operation - eliminates need for separate voltage regulators in mixed-supply systems and extends battery life in portable designs. |
| High endurance & retention | 4M write cycles and 200-year data retention - validated under accelerated stress testing per JEDEC JESD22-A117, enabling decade-long deployments. |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime recalibration; synchronized via I²C at 400 kHz. Use Value: Enables field-replaceable sensor modules with persistent calibration data independent of host MCU firmware updates. | Use Scenario: Retaining seat position memory, mirror angle settings, and lighting profiles across ignition cycles in entry-level vehicle platforms. IC Role / Device Role / Timing Role: Slave EEPROM on vehicle body domain controller I²C bus; accessed during wake-up sequence at 100 kHz for low EMI. Use Value: Survives 15+ year service life with >100,000 write cycles per setting, meeting OEM durability requirements without wear leveling. |
| Smart Energy Metering | Medical Diagnostic Equipment |
Use Scenario: Logging tariff schedules, firmware version stamps, and tamper-event timestamps in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure configuration and event log storage; write-protected via WC pin during normal operation; accessed at 1 MHz during firmware update windows. Use Value: Meets ANSI/IEEE 1373 anti-tamper requirements through hardware write lock and 200-year data retention for audit trails. | Use Scenario: Storing FDA-mandated device serial numbers, calibration certificates, and usage counters in portable ultrasound probes. IC Role / Device Role / Timing Role: Trusted identity and compliance data vault; identification page locked after factory programming to prevent unauthorized modification. Use Value: Provides immutable traceability chain for regulatory audits and satisfies IEC 62304 software lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C512B-SSHL-T (Microchip) | 512 Kbit, 1.7–5.5 V, but lacks identification page and permanent lock feature; max I²C speed 1 MHz only at ≥2.5 V. | No hardware-secured parameter storage; unsuitable for applications requiring tamper-proof calibration or security keys. | Select when cost sensitivity outweighs need for locked ID page and full-voltage 1 MHz operation. |
| BR24G512FJ-3GE2 (ROHM) | 512 Kbit, 1.7–5.5 V, includes WP pin but no dedicated ID page; supports 1 MHz only above 2.2 V; no ECC. | Lacks error correction and permanent lock mechanism; requires external software-based protection for sensitive data. | Choose for basic parameter storage where ECC and hardware lock are not mandated by safety or compliance standards. |
Compared with AT24C512B-SSHL-T and BR24G512FJ-3GE2, the M24512-DFMC6TG uniquely delivers a lockable identification page with ECC and guaranteed 1 MHz operation down to 1.7 V - making it the only option for safety-critical, tamper-resistant, and ultra-low-voltage embedded systems.
Availability
M24512-DFMC6TG is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control modules, and smart energy metering requiring stable component supply, long-term obsolescence management, and ECOPACK2®-compliant packaging.
Supply support for M24512-DFMC6TG 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 M24512 series belongs to ST's serial EEPROM product line, engineered specifically for robust, secure, and long-life nonvolatile data storage in harsh environments with stringent reliability and regulatory compliance requirements.
FAQ
What is the function of the WC pin on M24512-DFMC6TG?
The WC (Write Control) pin is a hardware-level write protect input: when driven high, it disables all write operations to both the main memory array and the identification page. When low or floating, writes are enabled. This provides fail-safe protection against accidental overwrites during power transients or firmware bugs, independent of software state.
Does M24512-DFMC6TG support I²C clock stretching?
No, the M24512-DFMC6TG does not support clock stretching. It is a pure slave device with fixed internal timing; all write cycles complete within ≤5 ms, and the device responds to I²C START/STOP conditions and ACK/NACK protocol without holding SCL low. Bus masters must implement polling via repeated START + device address to detect write completion.
How is the identification page different from the main memory array?
The identification page is a separate 128-byte memory region accessible only via I²C device select code 1011b (vs. 1010b for main array). It supports dedicated write, read, and lock instructions. Once locked using the Lock ID command, it becomes permanently read-only - unlike the main array, which remains fully rewritable unless protected by WC.
Can M24512-DFMC6TG operate reliably at 1.7 V and 1 MHz simultaneously?
Yes, the M24512-DFMC6TG is fully specified for 1 MHz I²C operation across its entire 1.7 V to 5.5 V supply range, as confirmed in DS6520 Rev 31 Section 8 AC characteristics (tBUF, tLOW, tHIGH, etc.). This distinguishes it from competing 512 Kbit EEPROMs that require ≥2.2 V or ≥2.5 V for 1 MHz timing compliance.
M24512-DFMC6TG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- 5ms
- Access Time:
- 500 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UFDFPN (2x3)
M24512-DFMC6TG FAQ
1.How can I place an order for M24512-DFMC6TG through Aetrix?
Please submit a Request for Quotation (RFQ) for M24512-DFMC6TG 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 M24512-DFMC6TG reliable?
The price and inventory of M24512-DFMC6TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24512-DFMC6TG is usually 5 days.
3.What payment methods are accepted for M24512-DFMC6TG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24512-DFMC6TG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24512-DFMC6TG?
M24512-DFMC6TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24512-DFMC6TG 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 M24512-DFMC6TG?
For technical support, including M24512-DFMC6TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24512-DFMC6TG requirements.
6.How does Aetrix verify that M24512-DFMC6TG is sourced from the original manufacturer or authorized distributors?
All M24512-DFMC6TG 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 M24512-DFMC6TG meets industry standards.
7.What is the process for return or replacement of M24512-DFMC6TG?
All M24512-DFMC6TG units undergo pre-shipment inspection (PSI). If there is an issue with M24512-DFMC6TG, 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 M24512-DFMC6TG part is unused and in its original packaging.
Return procedure for M24512-DFMC6TG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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