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STMicroelectronics M95512-DFMC6TG
- Part No.:
- M95512-DFMC6TG
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
M95512-DFMC6TG.pdf
- Description:
- IC EEPROM 512KBIT SPI 8UFDFPN
- Quantity:
- Payment:
- Shipping:
Inventory:7,982
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Product details
Overview
M95512-DFMC6TG from STMicroelectronics is a 512-Kbit (64-Kbyte) serial SPI bus EEPROM with 1.7 V to 5.5 V single-supply operation, 128-byte page size, and an additional lockable 128-byte Identification page. It supports 16 MHz clock speed, delivers >4 million write cycles, and retains data for >200 years - deployed in industrial sensor calibration storage and embedded firmware parameter retention.
For engineers reviewing the M95512-DFMC6TG datasheet, M95512-DFMC6TG pinout, M95512-DFMC6TG application, or M95512-DFMC6TG equivalent, key selection criteria include low-voltage compatibility (1.7 V min), hardware/software write protection granularity (quarter/half/whole array + ID page lock), SPI mode support (CPOL/CPHA = 0/0 or 1/1), and ECOPACK2-compliant ultra-compact packaging (WLSCP8, UFDFPN8).
Technical Context
The device implements a standard SPI interface with dedicated HOLD and WRITE PROTECT pins enabling real-time communication suspension and configurable memory locking. Its internal architecture includes a high-voltage generator, ECC-enabled sense amplifiers, and a status register with non-volatile BP1/BP0 and SRWD bits controlling block protection and hardware write disable.
It operates across -40 °C to +85 °C with built-in power-on reset (POR), decoupling capacitor recommendation (10–100 nF), and strict tSHCH timing compliance. The Identification page (addressed via RDID/WRID/LID instructions) provides tamper-resistant storage for calibrated coefficients or security keys, permanently lockable in read-only mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 512 Kbit (64 Kbyte), organized as 65536 × 8 bits - sufficient for full bootloader configuration or multi-sensor calibration tables. |
| Supply voltage range | 1.7 V to 5.5 V - enables direct interfacing with 1.8 V logic and legacy 3.3 V/5 V systems without level shifters. |
| Page size | 128 bytes - matches typical MCU cache line sizes and minimizes write latency per page (≤5 ms). |
| Write endurance | >4 million cycles - supports daily field firmware updates over 10+ years in remote monitoring devices. |
| Data retention | >200 years at 85 °C - ensures long-term reliability in unattended infrastructure deployments. |
| SPI clock speed | Up to 16 MHz - enables sub-50 µs byte reads and efficient bulk parameter loading in real-time control loops. |
| Operating temperature | -40 °C to +85 °C - qualified for industrial automation, automotive body electronics, and outdoor IoT gateways. |
Pinout & Package
Package: WLSCP8 (1.289 × 1.955 mm), ECOPACK2-compliant wafer-level chip-scale package - optimized for space-constrained portable and wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 1.7–5.5 V main supply; requires local 10–100 nF decoupling capacitor for stable SPI timing. |
| VSS | Ground reference | Common return path for all signals; must be low-impedance to prevent noise-induced SPI errors. |
| C | Serial clock input | Timing reference for all SPI transfers; sampled on rising edge for input, drives Q on falling edge. |
| D | Serial data input | Carries instruction codes, addresses, and write data; latched on rising edge of C. |
| Q | Serial data output | Drives read data and status register contents; high-impedance when deselected or in HOLD state. |
| S | Chip select input | Active-low enable; edge-sensitive - requires falling edge after power-up before first instruction. |
| W | Hardware write protect | Controls SRWD bit lock; low + SRWD=1 enables Hardware Protected mode (BP1/BP0 immutable). |
| HOLD | Communication suspend | Pauses ongoing SPI transfer without resetting internal state; requires S low to activate. |
Key Features
| Feature | Design Value |
|---|---|
| Identification page | 128-byte dedicated memory area with LID instruction for permanent read-only lock - stores factory-calibrated sensor offsets or cryptographic keys. |
| Flexible write protection | Software-configurable (BP1/BP0) quarter/half/whole array lock + hardware-enforced (W + SRWD) status register freeze - prevents accidental or malicious firmware corruption. |
| Low-voltage operation | 1.7 V minimum VCC enables direct integration with energy-harvesting subsystems and battery-powered edge nodes. |
| ECOPACK2 packaging | WLSCP8 footprint (1.289 × 1.955 mm) reduces PCB area by >70% vs. SO8N - critical for miniaturized medical wearables and smart tags. |
| SPI mode compatibility | Supports both CPOL=0/CPHA=0 and CPOL=1/CPHA=1 - interoperable with STM32, ESP32, Nordic nRF52, and TI MSP430 SPI peripherals without mode reconfiguration. |
Applications
| Industrial Sensor Calibration | Embedded Firmware Parameter Storage |
|---|---|
Use Scenario: Storing temperature-compensated gain/offset coefficients for MEMS pressure sensors in HVAC controllers. IC Role / Device Role / Timing Role: Non-volatile parameter repository accessed during boot and runtime recalibration; SPI read latency ≤50 µs meets real-time loop deadlines. Use Value: Eliminates external calibration EEPROM, reducing BOM count and enabling field updates via secure bootloader using the lockable Identification page. | Use Scenario: Retaining user-configured network settings (SSID, IP, TLS certificates) in Wi-Fi-enabled smart lighting modules. IC Role / Device Role / Timing Role: Persistent configuration store updated only on user action; 128-byte page writes complete in ≤5 ms to avoid UI lag. Use Value: Prevents loss of connectivity after power cycle; hardware write protection (W + SRWD) blocks OTA update bugs from corrupting critical credentials. |
| Automotive Body Control Module | Medical Wearable Device |
Use Scenario: Saving seat position memory, mirror angle presets, and ambient light sensor thresholds in 12 V vehicle systems. IC Role / Device Role / Timing Role: Robust EEPROM interfaced to LIN-to-SPI bridge MCU; operates reliably across 1.7–5.5 V supply transients during cold-crank. Use Value: Qualified to -40 °C/+85 °C with >200-year data retention - ensures preset persistence over full vehicle lifetime without refresh. | Use Scenario: Storing patient-specific therapy parameters (pulse rate, amplitude, session history) in rechargeable TENS units. IC Role / Device Role / Timing Role: Ultra-small WLSCP8 EEPROM soldered directly beneath ASIC; withstands repeated flex cycling and sterilization thermal profiles. Use Value: 1.289 × 1.955 mm footprint enables <8 mm² total PCB area; ECOPACK2 RoHS/REACH compliance meets ISO 13485 manufacturing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF512C-SSH-T | 512 Kbit SPI flash (not EEPROM); no built-in Identification page; 2.7–3.6 V only. | Lacks hardware-lockable ID page and 1.7 V operation; requires external wear-leveling for frequent writes. | Select only if cost-sensitive and write frequency <1000 cycles/year; not suitable for calibration-critical roles. |
| M95512-DRMN6TP | Same die, TSSOP8 (169 mil) package; identical electrical specs and feature set. | Requires larger PCB footprint (3 × 4.4 mm vs. WLSCP8's 1.29 × 1.96 mm); less suited for ultra-thin wearables. | Choose for manual assembly, test fixture compatibility, or thermal dissipation needs exceeding WLSCP8 limits. |
Compared with AT25DF512C-SSH-T and M95512-DRMN6TP, M95512-DFMC6TG uniquely combines 1.7 V operation, lockable ID page, and WLSCP8 miniaturization - making it optimal for battery-constrained, calibration-intensive, and space-limited embedded systems.
Availability
M95512-DFMC6TG is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded firmware parameter storage, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for M95512-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, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
The M95512 series belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, and secure non-volatile data storage in resource-constrained embedded systems with stringent reliability requirements.
FAQ
What is the function of the HOLD pin on M95512-DFMC6TG?
The HOLD pin pauses ongoing SPI communication without deselecting the device or resetting internal state. When driven low while Chip Select (S) is active, Serial Data Output (Q) goes high-impedance and Clock (C)/Data (D) become don't-care. This allows the host MCU to service higher-priority interrupts mid-transfer and resume seamlessly - critical for deterministic real-time systems.
How does the Identification page differ from the main memory array?
The Identification page is a dedicated 128-byte region accessible only via RDID/WRID/LID instructions - separate from the main 64-Kbyte array. Once locked via LID, it becomes permanently read-only, protecting factory-programmed calibration data or security keys from overwrite. Unlike main array protection (BP1/BP0), ID page lock is irreversible and hardware-enforced.
Can M95512-DFMC6TG operate reliably at 1.7 V during power-up sequences?
Yes - the device incorporates a power-on-reset (POR) circuit that holds the IC inactive until VCC exceeds the POR threshold (below 1.7 V). Once stable, it enters Standby mode and requires a falling edge on Chip Select (S) before accepting commands. This ensures robust initialization even with slow-ramp or noisy 1.7 V supplies common in energy-harvesting designs.
What SPI modes does M95512-DFMC6TG support, and why does it matter?
M95512-DFMC6TG supports CPOL=0/CPHA=0 and CPOL=1/CPHA=1 - the two most widely implemented SPI modes. Input data is latched on the rising edge of C, and output data appears on the falling edge. This dual-mode compatibility eliminates firmware rework when migrating between MCUs (e.g., STM32 vs. ESP32) and avoids signal integrity issues caused by mismatched clock polarity assumptions.
M95512-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:
- SPI
- Clock Frequency:
- 16 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- 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)
M95512-DFMC6TG FAQ
1.How can I place an order for M95512-DFMC6TG through Aetrix?
Please submit a Request for Quotation (RFQ) for M95512-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 M95512-DFMC6TG reliable?
The price and inventory of M95512-DFMC6TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95512-DFMC6TG is usually 5 days.
3.What payment methods are accepted for M95512-DFMC6TG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95512-DFMC6TG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M95512-DFMC6TG?
M95512-DFMC6TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M95512-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 M95512-DFMC6TG?
For technical support, including M95512-DFMC6TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95512-DFMC6TG requirements.
6.How does Aetrix verify that M95512-DFMC6TG is sourced from the original manufacturer or authorized distributors?
All M95512-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 M95512-DFMC6TG meets industry standards.
7.What is the process for return or replacement of M95512-DFMC6TG?
All M95512-DFMC6TG units undergo pre-shipment inspection (PSI). If there is an issue with M95512-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 M95512-DFMC6TG part is unused and in its original packaging.
Return procedure for M95512-DFMC6TG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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