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

STMicroelectronics M95512-DRMN8TP/K

Name: M95512-DRMN8TP/K
Brand: STMicroelectronics
SKU: M95512-DRMN8TP/K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M95512-DRMN8TP/K

Manufacturer:: STMicroelectronics

Category:: Memory

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

Datasheet:: M95512-DRMN8TP/K.pdf

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

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Product details

Overview

M95512-DRMN8TP/K from STMicroelectronics is a 512-Kbit (64 Kbytes) serial SPI EEPROM with 128-byte page size, rated for operation up to 105 °C and supply voltage range 1.7–5.5 V, featuring embedded ECC logic for enhanced data integrity in automotive and industrial control memory logging.

For engineers reviewing the M95512-DRMN8TP/K datasheet, M95512-DRMN8TP/K pinout, M95512-DRMN8TP/K application, or M95512-DRMN8TP/K equivalent, key selection criteria include write endurance at elevated temperature, block-level hardware write protection, identification page lockability, and SPI mode compatibility (CPOL=0/1, CPHA=0/1).

Technical Context

This device implements a true EEPROM array organized as 512 pages × 128 bytes (65,536 × 8 bits), with dedicated Identification Page (128 bytes) supporting permanent lock via LID instruction. It uses Schmitt-trigger inputs for noise immunity and supports two standard SPI modes: CPOL=0/CPHA=0 and CPOL=1/CPHA=1.

Protocol control relies on edge- and level-sensitive Chip Select (S), Write Enable Latch (WEL) state validation, and byte-aligned command framing. Data protection combines non-volatile Block Protect (BP1/BP0) bits, Status Register Write Disable (SRWD) bit, and physical W pin coordination to enforce configurable memory locking.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	512 Kbit (64 Kbytes), organized as 512 × 128-byte pages - enables efficient firmware parameter storage with minimal bus overhead.
Operating temperature	−40 °C to +105 °C - qualified per AEC-Q100 Grade 2, suitable for under-hood automotive ECUs and industrial motor drives.
Supply voltage	1.7 V to 5.5 V - supports direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifting.
Max SPI clock	16 MHz (VCC ≥ 4.5 V), 10 MHz (VCC ≥ 2.5 V), 5 MHz (VCC ≥ 1.7 V) - enables high-throughput configuration updates in real-time systems.
Write endurance	900 k cycles at 105 °C - ensures reliable logging of critical fault records over full product lifetime in high-temp environments.
Data retention	50+ years at 105 °C - guarantees long-term validity of calibration data and security keys without refresh.
ESD rating	4000 V HBM - provides robustness against handling and board-level transients in manufacturing and field service.

Pinout & Package

Package: TSSOP8 (DW), 169 mil width, RoHS-compliant and halogen-free (ECOPACK2®).

Pin/Terminal	Circuit Role	Design Meaning
S	Chip Select	Active-low enable; edge- and level-sensitive - prevents spurious commands during power-up or noise events.
C	Serial Clock	Input synchronizing all SPI transfers; supports CPOL/CPHA modes - defines timing reference for D input sampling and Q output transitions.
D	Serial Data Input	Input for instructions, addresses, and write data; latched on rising C edge - carries command stream and payload in single-wire half-duplex mode.
Q	Serial Data Output	Output for read data and status; driven on falling C edge - provides deterministic output timing aligned to clock fall.
W	Write Protect	Hardware control for Status Register write lock when SRWD = 1 - enables tamper-resistant configuration lockdown.
HOLD	Hold	Pauses ongoing SPI transfer without deselecting device - preserves internal state during host interrupt servicing.
VSS	Ground	Signal and supply reference plane - must be low-impedance to maintain noise margin for Schmitt-trigger inputs.
VCC	Supply Voltage	Power input (1.7–5.5 V); powers internal charge pump for EEPROM programming - enables wide-voltage system integration.

Key Features

Feature	Design Value
Embedded ECC logic	Corrects single-bit errors and detects double-bit errors in memory array - eliminates need for external error-handling firmware in safety-critical logging.
Configurable block protection	1/4, 1/2, or full memory lock via BP1/BP0 bits - isolates boot code or calibration tables from accidental overwrite during field updates.
Lockable Identification Page	128-byte dedicated area with LID instruction - secures manufacturer ID and user-defined parameters (e.g., serial number, calibration offsets) in immutable read-only mode.
High-temp write endurance	900 k cycles at 105 °C - sustains >10-year daily logging in thermal chambers or engine control units without wear-out failure.
Multi-voltage SPI timing	Three speed grades tied to VCC - maintains timing compliance across mixed-voltage boards without clock throttling or external regulators.

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Configuration Storage

Use Scenario: Storing adaptive fuel trim values, fault codes, and calibration constants that persist across ignition cycles and battery disconnects.

IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via SPI during boot and runtime diagnostics - retains data without backup capacitor or supercapacitor.

Use Value: Enables zero-latency recall of learned engine behavior after cold start, meeting ISO 16750-2 transient immunity and AEC-Q100 thermal requirements.

Use Scenario: Holding I/O mapping tables, PID tuning coefficients, and safety interlock settings in programmable logic controllers deployed in factory automation.

IC Role / Device Role / Timing Role: Field-updatable configuration vault - written once per commissioning or firmware update, read frequently during scan cycle.

Use Value: Eliminates manual DIP-switch configuration; supports remote reprogramming while maintaining data integrity under 85 °C ambient cabinet conditions.

Medical Infusion Pump Calibration

Smart Meter Firmware Parameter Vault

Use Scenario: Securing drug delivery rate limits, dose history logs, and sensor offset corrections subject to FDA 21 CFR Part 11 audit trails.

IC Role / Device Role / Timing Role: Tamper-evident calibration repository - Identification Page locked post-calibration to prevent unauthorized modification.

Use Value: Meets IEC 62304 Class C software requirements by guaranteeing write-protection enforcement independent of host MCU firmware state.

Use Scenario: Storing tariff schedules, meter serial numbers, and cryptographic keys in ANSI C12.22-compliant electricity meters operating in outdoor enclosures.

IC Role / Device Role / Timing Role: Secure, long-life parameter store - accessed during meter initialization and firmware upgrade verification.

Use Value: Provides 50+ year data retention at 105 °C ambient, satisfying ANSI C12.19 archival requirements without periodic refresh or battery-backed RAM.

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 ECC; lacks Identification Page and lockable ID feature.	Requires external ECC implementation; unsuitable for secure calibration storage where immutable ID binding is required.	Select only if cost sensitivity outweighs data integrity assurance and long-term retention at 105 °C.
BR24G512FJ-WE2	512 Kbit I²C EEPROM; max temp 105 °C; no HOLD pin; no Identification Page; lower write endurance (1M @ 85 °C).	Requires I²C bus allocation and arbitration; incompatible with SPI-only hosts; insufficient endurance for high-cycle logging at full spec temp.	Choose only for space-constrained designs where I²C is already dominant and write frequency is <100×/day.

Compared with AT25DF512C-SSH-T and BR24G512FJ-WE2, M95512-DRMN8TP/K uniquely delivers SPI-native EEPROM reliability with integrated ECC, lockable ID page, and guaranteed 900k write cycles at 105 °C - making it the sole option for AEC-Q100 Grade 2 systems requiring both security and endurance.

Availability

M95512-DRMN8TP/K is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC commissioning, medical device calibration, and smart meter firmware parameter storage requiring stable component supply across extended temperature and voltage ranges.

Supply support for M95512-DRMN8TP/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 headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with broad analog, digital, and MEMS portfolios.

M95512-DRMN8TP/K belongs to ST's automotive-grade serial EEPROM product line, designed specifically for mission-critical nonvolatile storage in harsh-environment control systems where data integrity, longevity, and AEC-Q100 compliance are mandatory.

FAQ

What is the function of the HOLD pin on M95512-DRMN8TP/K?

The HOLD pin pauses active SPI communication without deselecting the device or resetting internal state. When asserted low while Serial Clock (C) is low, it places Serial Data Output (Q) in high-impedance and ignores D and C transitions. This allows the host MCU to service interrupts or perform other tasks while preserving the exact point in the current command sequence, resuming seamlessly upon deassertion.

How does the Identification Page differ from main memory?

The Identification Page is a dedicated 128-byte region separate from the 512-Kbit main array. Its first three bytes contain ST's fixed device ID (0x20, 0x14, 0x00), while remaining bytes are user-programmable. Unlike main memory, it supports the LID (Lock Identification) instruction to permanently disable writes - turning it into a tamper-proof zone for serial numbers, calibration signatures, or cryptographic keys.

Can M95512-DRMN8TP/K operate reliably at 1.7 V and 105 °C simultaneously?

Yes. The datasheet explicitly specifies 5 MHz max SPI clock, 900 k write cycles, and >50 years data retention at 1.7 V and 105 °C. These parameters are measured and guaranteed under combined stress conditions - not extrapolated - and validated per AEC-Q100 Grade 2 requirements for continuous operation in automotive under-hood environments.

What protection mechanisms prevent accidental writes to protected memory blocks?

Accidental writes are prevented by a dual-layer scheme: (1) non-volatile BP1/BP0 bits in the Status Register define protected address ranges (none, upper quarter, upper half, or full memory + ID page); (2) SRWD bit + W pin state determine whether the Status Register itself can be modified. If SRWD=1 and W=low, BP bits become frozen - blocking any change to protection scope until W is pulled high.

M95512-DRMN8TP/K 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:: 4ms

Access Time:: -

Voltage - Supply:: 1.8V ~ 5.5V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

M95512-DRMN8TP/K FAQ

1.How can I place an order for M95512-DRMN8TP/K through Aetrix?

Please submit a Request for Quotation (RFQ) for M95512-DRMN8TP/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-DRMN8TP/K reliable?

The price and inventory of M95512-DRMN8TP/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-DRMN8TP/K is usually 5 days.

3.What payment methods are accepted for M95512-DRMN8TP/K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95512-DRMN8TP/K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M95512-DRMN8TP/K?

M95512-DRMN8TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M95512-DRMN8TP/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-DRMN8TP/K?

For technical support, including M95512-DRMN8TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95512-DRMN8TP/K requirements.

6.How does Aetrix verify that M95512-DRMN8TP/K is sourced from the original manufacturer or authorized distributors?

All M95512-DRMN8TP/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-DRMN8TP/K meets industry standards.

7.What is the process for return or replacement of M95512-DRMN8TP/K?

All M95512-DRMN8TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M95512-DRMN8TP/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-DRMN8TP/K part is unused and in its original packaging.

Return procedure for M95512-DRMN8TP/K:

1.Submit a request within 90 days.

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

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