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STMicroelectronics M95512-DFMN6TP

Name: M95512-DFMN6TP
Brand: STMicroelectronics
SKU: M95512-DFMN6TP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M95512-DFMN6TP

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: M95512-DFMN6TP.pdf

Description:: IC EEPROM 512KBIT SPI 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:5,743

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Product details

Overview

M95512-DFMN6TP from STMicroelectronics is a 512-Kbit (64-Kbyte) serial SPI 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 ≤5 ms byte/page write time, and guarantees >4 million write cycles and >200-year data retention across –40 °C to +85 °C. Used in industrial control modules for storing calibrated sensor offsets and firmware configuration parameters.

For engineers reviewing the M95512-DFMN6TP datasheet, M95512-DFMN6TP pinout, M95512-DFMN6TP application, or M95512-DFMN6TP equivalent, key selection criteria include low-voltage compatibility (1.7 V min), hardware/software write protection granularity (quarter/half/whole array), Identification page lockability, and ECOPACK2-compliant WLCSP8 packaging for space-constrained PCBs.

Technical Context

The M95512-DF implements a standard SPI interface with CPOL=0/CPHA=0 or CPOL=1/CPHA=1 mode support, using dedicated D (input), Q (output), C (clock), S (chip select), W (write protect), and HOLD (communication pause) signals. Its internal architecture includes a status register with non-volatile BP1/BP0 bits for software block protection and SRWD bit enabling hardware-locked protection when W is low.

It features an on-chip high-voltage generator and ECC logic for reliability, plus a dedicated Identification page (128 bytes) accessible only via RDID/WRID/LID instructions - absent in M95512-W/R variants. The device enters Standby mode when S is high (no write in progress) and Active mode when S is low, with current consumption scaling accordingly.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	512 Kbit (64 Kbyte), organized as 65536 × 8 bits - sufficient for full bootloader config + calibration tables in edge-node devices.
Supply Voltage Range	1.7 V to 5.5 V - enables direct interfacing with 1.8 V microcontrollers and legacy 3.3 V/5 V systems without level shifters.
Write Time	≤5 ms per byte or per 128-byte page - allows rapid field updates during device initialization or over-the-air parameter sync.
Write Endurance	>4 million write cycles - supports daily reconfiguration in programmable logic controllers over 10+ years of operation.
Data Retention	>200 years at 25 °C - ensures firmware metadata integrity across product lifetime without refresh mechanisms.
Operating Temperature	–40 °C to +85 °C - qualified for use in automotive body control modules and industrial motor drives.
SPI Clock Speed	Up to 16 MHz - enables <100 µs read latency for 16-bit configuration words, critical for real-time control loops.

Pinout & Package

Package: WLSCP8 (WLCSP, 1.289 × 1.955 mm, ECOPACK2-compliant), suitable for ultra-compact portable and wearable electronics.

Pin/Terminal	Circuit Role	Design Meaning
D	Serial Data Input	Latches instruction/address/data on rising edge of C; enables command decoding and memory writes.
Q	Serial Data Output	Drives read data on falling edge of C; high-impedance when deselected or in HOLD state.
C	Serial Clock	Master-generated timing signal; defines data sampling (D) and output (Q) edges per SPI mode.
S	Chip Select	Active-low enable; must transition low after power-up before first instruction; edge-sensitive reset behavior prevents spurious writes.
W	Write Protect	Hardware lock for Status Register (BP1/BP0/SRWD); when low + SRWD=1, disables WRSR and enforces permanent read-only protection.
HOLD	Communication Hold	Pauses ongoing SPI transfer without deselecting device; Q goes high-Z, D/C ignored - useful during MCU interrupt servicing.
VCC	Supply Voltage	1.7–5.5 V input; requires local 10–100 nF decoupling capacitor to maintain stability during write cycles.
VSS	Ground Reference	Common return path for all I/O and internal circuitry; must be low-impedance to ensure noise immunity.

Key Features

Feature	Design Value
Identification Page	128-byte dedicated memory area with RDID/WRID/LID instructions - stores immutable device IDs or cryptographic keys that can be permanently locked.
Flexible Write Protection	Three-tier software block protection (none / upper quarter / upper half / full array) via BP1/BP0 bits - enables selective firmware partitioning.
Hardware + Software Lock	SRWD bit + W pin combination creates irreversible hardware-protected mode - prevents accidental or malicious Status Register modification.
Enhanced Reliability	On-chip ECC and high-voltage generator ensure bit-level integrity during write/erase; >4M cycle endurance validated per JEDEC JESD22-A117.
Low-Voltage Operation	1.7 V minimum VCC enables direct integration with energy-harvesting subsystems and battery-powered sensors.

Applications

Industrial Sensor Calibration

Medical Device Configuration

Use Scenario: Storing factory-calibrated temperature compensation coefficients and sensor linearity correction tables in smart pressure transmitters.

IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed 200-year retention and >4M write cycles for field recalibration events.

Use Value: Eliminates need for external backup power or supercapacitors during recalibration; supports remote OTA updates without risk of corruption.

Use Scenario: Holding FDA-mandated device-specific settings (e.g., dose limits, alarm thresholds, user access levels) in portable infusion pumps.

IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage with hardware-locked Identification page for regulatory audit logs.

Use Value: Enables LID instruction to permanently lock critical safety parameters post-certification, satisfying IEC 62304 traceability requirements.

Automotive Body Control Unit

IoT Edge Node Firmware Storage

Use Scenario: Saving seat position memory, mirror presets, and lighting profiles in 12 V vehicle architectures with wide supply variation.

IC Role / Device Role / Timing Role: SPI EEPROM interfaced directly to 1.8 V CAN microcontroller; operates reliably from 1.7 V during cold-crank conditions.

Use Value: Maintains user preferences across battery disconnects; withstands repeated reprogramming during dealership software updates.

Use Scenario: Storing encrypted firmware fragments and secure boot keys in LPWAN-connected environmental monitors powered by coin cells.

IC Role / Device Role / Timing Role: Ultra-low footprint WLCSP8 EEPROM providing authenticated config storage with minimal PCB area and leakage current.

Use Value: Reduces board area by >60% vs. SO8N; 1.7 V operation extends battery life by enabling deeper discharge before brownout.

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, 2.3–3.6 V supply, no Identification page, 8-pin SOIC only	Lacks hardware-lockable ID page and 1.7 V operation; limited to narrow-voltage embedded systems	Select when cost sensitivity outweighs low-voltage flexibility and secure ID storage needs.
MX25L51245GZUI	512 Kbit, 2.7–3.6 V supply, no BP1/BP0 software protection, no HOLD pin	Missing quarter/half-array write lock and communication hold capability - unsuitable for interrupt-driven hosts	Choose only for simple, fixed-config applications where host has full control over write sequencing and voltage stability.

Compared with AT25DF512C-SSH-T and MX25L51245GZUI, M95512-DFMN6TP uniquely combines 1.7 V operation, hardware-enforced ID page locking, and multi-granularity software protection - making it the only option qualified for safety-critical, battery-constrained, and field-upgradable designs requiring long-term data integrity.

Availability

M95512-DFMN6TP is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, automotive body control units, and IoT edge node firmware storage requiring stable component supply across extended product lifecycles.

Supply support for M95512-DFMN6TP 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, specializing in microcontrollers, power management, MEMS, and nonvolatile memory solutions for industrial, automotive, and consumer markets.

M95512-DFMN6TP belongs to ST's serial EEPROM product line, engineered specifically for robust, low-voltage, secure configuration storage in space- and power-constrained embedded systems with stringent data retention and write endurance requirements.

FAQ

What is the function of the HOLD pin on M95512-DFMN6TP?

The HOLD pin pauses ongoing SPI communication without deselecting the device or resetting internal state. When asserted low while S is low, Q goes high-impedance and D/C are ignored - allowing the host MCU to service interrupts or perform other tasks while preserving transaction context. It resumes automatically when HOLD returns high, eliminating need for reinitialization.

How does the Identification page differ from main memory in M95512-DFMN6TP?

The Identification page is a separate 128-byte memory region accessible only via RDID/WRID/LID instructions - not through standard READ/WRITE commands. Once locked via LID, it becomes permanently read-only, protecting device-specific data like serial numbers or cryptographic keys from overwrite, even if main array protection is disabled.

Can M95512-DFMN6TP operate reliably at 1.7 V during write operations?

Yes - the M95512-DF variant is fully specified for write operations down to 1.7 V, including ≤5 ms page writes and status register updates. This is validated across –40 °C to +85 °C and confirmed in DS4192 Rev 24 AC timing tables (tW, tWH, tWL), distinguishing it from M95512-W/R variants with higher minimum VCC.

What happens if the W pin is driven low while SRWD = 0?

Driving W low with SRWD = 0 has no effect on memory protection - only the BP1/BP0 bits govern array write lock. SRWD must be set to 1 first (via WRSR), then W driven low, to activate Hardware Protected mode. In that state, WRSR is rejected and BP1/BP0/SRWD become read-only until next power cycle.

M95512-DFMN6TP Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

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-SOIC

M95512-DFMN6TP FAQ

1.How can I place an order for M95512-DFMN6TP through Aetrix?

Please submit a Request for Quotation (RFQ) for M95512-DFMN6TP 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-DFMN6TP reliable?

The price and inventory of M95512-DFMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95512-DFMN6TP is usually 5 days.

3.What payment methods are accepted for M95512-DFMN6TP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95512-DFMN6TP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M95512-DFMN6TP?

M95512-DFMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M95512-DFMN6TP 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-DFMN6TP?

For technical support, including M95512-DFMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95512-DFMN6TP requirements.

6.How does Aetrix verify that M95512-DFMN6TP is sourced from the original manufacturer or authorized distributors?

All M95512-DFMN6TP 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-DFMN6TP meets industry standards.

7.What is the process for return or replacement of M95512-DFMN6TP?

All M95512-DFMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M95512-DFMN6TP, 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-DFMN6TP part is unused and in its original packaging.

Return procedure for M95512-DFMN6TP:

1.Submit a request within 90 days.

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

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