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

STMicroelectronics M95512-DRMF3TG/K

Name: M95512-DRMF3TG/K
Brand: STMicroelectronics
SKU: M95512-DRMF3TG/K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M95512-DRMF3TG/K

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 8-WFDFN Exposed Pad

Datasheet:: M95512-DRMF3TG/K.pdf

Description:: IC EEPROM 512KBIT SPI 16MHZ 8MLP

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Product details

Overview

M95512-DRMF3TG/K from STMicroelectronics is an AEC-Q100 Grade 0 qualified 512-Kbit serial SPI EEPROM for automotive applications, featuring 64 Kbyte memory array organized in 512 × 128-byte pages, 16 MHz max clock (V_CC ≥ 4.5 V), and extended operation up to 145 °C with V_CC = 2.5–5.5 V. It integrates Schmitt-trigger inputs, embedded ECC logic, and a lockable 128-byte Identification Page for device ID and secure parameter storage.

For engineers reviewing the M95512-DRMF3TG/K datasheet, M95512-DRMF3TG/K pinout, M95512-DRMF3TG/K application, or M95512-DRMF3TG/K equivalent, key selection criteria include automotive-grade temperature endurance (145 °C), block-wise write protection (1/4, 1/2, full), byte/page write times ≤ 4 ms, and SPI mode compatibility (CPOL=0/1, CPHA=0/1).

Technical Context

This EEPROM implements a true electrically erasable programmable memory architecture with on-die ECC logic enhancing data integrity across 4 million write cycles at 25 °C. Its SPI interface supports two standard modes-CPOL=0/CPHA=0 and CPOL=1/CPHA=1-with input latching on rising clock edge and output valid after falling edge.

The device uses a status register with WIP (Write In Progress) and WEL (Write Enable Latch) bits to manage command sequencing, and BP1/BP0 bits to configure non-volatile block protection. The SRWD bit couples with the physical W pin to enable or disable Status Register writes based on external hardware control.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	512 Kbit (64 Kbyte), organized as 512 pages × 128 bytes - enables efficient firmware patching and configuration storage without full erase.
Max SPI clock	16 MHz at V_CC ≥ 4.5 V - supports high-throughput boot-time parameter loading in engine control units.
Operating temp	Up to 145 °C (V_CC = 2.5–5.5 V) - certified for under-hood automotive environments including transmission control modules.
Write endurance	400 k cycles at 145 °C - ensures reliable calibration data logging over full vehicle lifetime in high-temp zones.
Data retention	50 years at 125 °C - guarantees long-term integrity of safety-critical configuration data without refresh.
Page write time	≤ 4 ms - allows rapid field-updatable parameter updates during vehicle diagnostics or OTA sessions.
ESD rating	4000 V HBM - provides robustness against assembly handling and in-vehicle electrostatic discharge events.

Pinout & Package

Package: WFDFPN8 (2 × 3 mm, 0.5 mm pitch, RoHS-compliant ECOPACK2®). Pin mapping validated per STMicroelectronics DS8843 Rev 9 Figure 2 and Table 1.

Pin/Terminal	Circuit Role	Design Meaning
1 – S	Chip Select	Active-low enable signal; edge- and level-sensitive for protocol safety - prevents spurious writes during power ramp.
2 – W	Write Protect	Hardware-controlled lock for Status Register writes when SRWD = 1 - enables tamper-resistant configuration lockdown.
3 – VSS	Ground	Signal and supply reference plane - must be low-impedance to maintain noise immunity for Schmitt-trigger inputs.
4 – D	Serial Data Input	Latches instruction/address/data on rising clock edge - supports standard SPI master peripherals without custom timing logic.
5 – Q	Serial Data Output	Drives data on falling clock edge, high-Z otherwise - enables multi-drop SPI bus sharing with proper tri-state management.
6 – C	Serial Clock	Synchronizes all I/O transfers - compatible with both CPOL=0 and CPOL=1 modes to match diverse MCU SPI peripherals.
7 – HOLD	Hold Control	Pauses ongoing transfer without deselecting device - preserves internal state during MCU interrupt servicing or bus arbitration.
8 – VCC	Supply Voltage	1.7–5.5 V operation range - supports direct connection to 3.3 V or 5 V automotive domains without level-shifting.

Key Features

Feature	Design Value
AEC-Q100 Grade 0 qualification	Validated for continuous operation at 145 °C - meets functional safety requirements for ASIL-B/C systems.
Lockable Identification Page	128-byte dedicated area with permanent read-only lock (LID instruction) - stores immutable device identity and calibrated parameters.
Block-selectable write protection	Configurable via BP1/BP0 bits to protect 1/4, 1/2, or entire memory - isolates critical bootloader config from application-level writes.
Embedded ECC logic	Corrects single-bit errors and detects double-bit errors per 128-byte page - eliminates need for external error-handling firmware overhead.
Schmitt-trigger inputs	Hysteresis on S, W, HOLD, C, D pins - rejects noise in harsh automotive EMI environments without external RC filtering.

Applications

Engine Control Unit (ECU)

Advanced Driver Assistance Systems (ADAS)

Use Scenario: Storing real-time calibration maps, fault logs, and adaptive learning parameters subject to frequent update during vehicle operation.

IC Role / Device Role / Timing Role: Non-volatile configuration storage with deterministic ≤4 ms page write latency and 145 °C thermal stability.

Use Value: Enables zero-latency reprogramming of torque maps during active driving while maintaining ASIL-B data integrity via ECC and block protection.

Use Scenario: Retaining camera lens calibration offsets, radar sensor alignment data, and fusion algorithm coefficients across ignition cycles.

IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter vault with lockable Identification Page and hardware write-protection.

Use Value: Prevents unauthorized modification of safety-critical ADAS parameters through physical W-pin control and SRWD-gated Status Register writes.

Electric Powertrain Inverter

Automotive Gateway Module

Use Scenario: Logging thermal derating profiles, IGBT gate drive timing adjustments, and insulation monitoring history in high-temperature motor control enclosures.

IC Role / Device Role / Timing Role: High-reliability data logger operating continuously at 125–145 °C with 50-year data retention at temperature.

Use Value: Eliminates periodic data refresh and extends service life beyond 15 years without risk of silent corruption in sealed inverters.

Use Scenario: Storing CAN FD routing tables, firmware signature keys, and network security certificates that must persist across firmware upgrades.

IC Role / Device Role / Timing Role: Trusted configuration store with AEC-Q100 qualification and 4000 V HBM ESD protection for board-level handling.

Use Value: Ensures cryptographic key integrity and routing table consistency during over-the-air updates without external backup power or supervision.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AT25DF512C-SSH-T	512 Kbit SPI NOR flash (not EEPROM); lacks built-in ECC, no lockable ID page; 100 k write cycles at 85 °C.	Requires external wear-leveling and error correction; unsuitable for high-cycle calibration logging.	Select only if cost sensitivity outweighs endurance and ECC requirements.
BR24G512FJ-3GE2	512 Kbit I²C EEPROM; max 1 MHz clock; rated only to 105 °C; no hold pin or identification page.	Slower interface limits OTA update throughput; insufficient for under-hood placement near power electronics.	Prefer only for non-automotive, space-constrained consumer designs with I²C infrastructure.

Compared with AT25DF512C-SSH-T and BR24G512FJ-3GE2, M95512-DRMF3TG/K uniquely delivers automotive-grade 145 °C operation, integrated ECC, lockable ID page, and SPI clock speeds up to 16 MHz - making it the sole choice for safety-critical, high-cycle, high-temperature automotive memory applications.

Availability

M95512-DRMF3TG/K is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, electric powertrain inverters, and automotive gateway modules requiring stable component supply across extended temperature and lifecycle demands.

Supply support for M95512-DRMF3TG/K 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 specializing in automotive, industrial, and power management solutions, with broad portfolio certification to AEC-Q100 and ISO 26262 standards.

The M95512 series belongs to ST's automotive-qualified serial EEPROM product line, designed specifically for mission-critical data storage in extreme-temperature vehicle subsystems where reliability, endurance, and security are non-negotiable.

FAQ

What is the maximum operating temperature and voltage range for M95512-DRMF3TG/K?

The device operates up to 145 °C with V_CC = 2.5–5.5 V, and up to 125 °C with V_CC = 1.7–5.5 V. This dual-range capability is confirmed in DS8843 Rev 9 Section 1 and Table 10, enabling deployment in both under-hood and cabin-mounted automotive modules.

How does the Identification Page differ from main memory, and how is it secured?

The 128-byte Identification Page is physically separate from main memory and supports WRID and RDID instructions. It can be permanently locked via the LID instruction, after which reads remain enabled but writes are blocked - verified in DS8843 Rev 9 Sections 3.5 and 4.10.

Does M95512-DRMF3TG/K require external circuitry for noise immunity?

No. All digital inputs (S, W, HOLD, C, D) feature integrated Schmitt triggers with defined hysteresis, eliminating need for external RC filters - specified in DS8843 Rev 9 Features list and Section 2 Signal Description.

What SPI modes are supported, and how is clock polarity managed?

The device supports CPOL=0/CPHA=0 and CPOL=1/CPHA=1 modes. Input data is latched on rising clock edge; output changes after falling edge. Clock polarity during idle is determined by CPOL setting - detailed in DS8843 Rev 9 Figure 3 and Section 3.2.

M95512-DRMF3TG/K Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-WFDFN 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:: 4ms

Access Time:: -

Voltage - Supply:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

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

M95512-DRMF3TG/K FAQ

1.How can I place an order for M95512-DRMF3TG/K through Aetrix?

Please submit a Request for Quotation (RFQ) for M95512-DRMF3TG/K 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-DRMF3TG/K reliable?

The price and inventory of M95512-DRMF3TG/K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95512-DRMF3TG/K is usually 5 days.

3.What payment methods are accepted for M95512-DRMF3TG/K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95512-DRMF3TG/K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M95512-DRMF3TG/K?

M95512-DRMF3TG/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M95512-DRMF3TG/K 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-DRMF3TG/K?

For technical support, including M95512-DRMF3TG/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95512-DRMF3TG/K requirements.

6.How does Aetrix verify that M95512-DRMF3TG/K is sourced from the original manufacturer or authorized distributors?

All M95512-DRMF3TG/K 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-DRMF3TG/K meets industry standards.

7.What is the process for return or replacement of M95512-DRMF3TG/K?

All M95512-DRMF3TG/K units undergo pre-shipment inspection (PSI). If there is an issue with M95512-DRMF3TG/K, 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-DRMF3TG/K part is unused and in its original packaging.

Return procedure for M95512-DRMF3TG/K:

1.Submit a request within 90 days.

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

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