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

STMicroelectronics M24M01-DWMN3TP/K

Name: M24M01-DWMN3TP/K
Brand: STMicroelectronics
SKU: M24M01-DWMN3TP/K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M24M01-DWMN3TP/K

Manufacturer:: STMicroelectronics

Category:: Memory

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

Datasheet:: M24M01-DWMN3TP/K.pdf

Description:: IC EEPROM 1MBIT I2C 1MHZ 8SOIC

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Product details

Overview

M24M01-DWMN3TP/K from STMicroelectronics is an automotive-grade 1-Mbit serial I²C EEPROM with AEC-Q100 Grade 1 qualification, operating from -40 °C to +125 °C and 2.5 V–5.5 V supply. It delivers 1 MHz I²C interface speed, 256-byte page write capability, and includes a dedicated 256-byte lockable identification page for device authentication and secure parameter storage - deployed in engine control units, ADAS sensor modules, and battery management systems.

For engineers reviewing the M24M01-DWMN3TP/K datasheet, M24M01-DWMN3TP/K pinout, M24M01-DWMN3TP/K application, or M24M01-DWMN3TP/K equivalent, key selection criteria include its extended temperature endurance (1.2M write cycles at 85 °C), ECC-protected memory array, Schmitt-trigger noise immunity on SCL/SDA, and dual-package availability (TSSOP8 and SO8N) with ECOPACK®2 compliance.

Technical Context

The M24M01-DWMN3TP/K implements a true EEPROM core with embedded Error Correction Code logic across all 128 K × 8-bit memory locations, enabling reliable byte-alterable storage in harsh automotive environments. Its I²C slave architecture supports standard, fast, and high-speed modes up to 1 MHz, with hardware-level write protection via the WC pin and dual-device-select addressing (E2/E1) for multi-device bus configurations.

It features a dedicated 256-byte Identification Page containing factory-programmed ST device codes (0x20, 0xE0, 0x11) and user-writable fields that can be permanently locked in read-only mode. Internal address counter auto-increment and ACK-polling support enable deterministic write-cycle timing (≤4 ms for byte/page writes) without fixed delay overhead.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	1 Mbit (128 Kbytes), organized as 512 pages × 256 bytes - enables efficient firmware patch storage and calibration data logging.
I²C Clock Speed	Up to 1 MHz - reduces EEPROM access latency by 2.5× vs 400 kHz devices in real-time control loops.
Operating Voltage	2.5 V to 5.5 V - compatible with 3.3 V and 5 V automotive microcontroller I/O domains without level shifting.
Temperature Range	-40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for under-hood and powertrain applications.
Write Endurance	1.2 million cycles at 85 °C - ensures >10-year reliability in frequent log-writing scenarios like battery cycle counting.
Data Retention	50 years at 125 °C - guarantees calibration data integrity over full vehicle lifetime without refresh.
ESD Protection	4000 V HBM - withstands assembly handling and in-vehicle electrostatic events without latch-up or bit corruption.

Pinout & Package

Package: TSSOP8 (DW) and SO8N (MN) - both RoHS-compliant, halogen-free ECOPACK®2 packages with 169 mil (SO8) and 150 mil (TSSOP8) body widths.

Pin/Terminal	Circuit Role	Design Meaning
E2, E1	Chip Enable Address Inputs	Set 2-bit device select code (b3,b2); determine which of up to four M24M01 devices responds on shared I²C bus.
SDA	Serial Data I/O	Open-drain bidirectional line; requires external pull-up; supports wire-OR with other I²C slaves.
SCL	Serial Clock Input	Master-generated clock; Schmitt trigger input rejects noise on long harness traces.
WC	Write Control Input	Active-high hardware lock: disables all writes when driven high; floating = write enabled.
VCC	Supply Voltage	2.5–5.5 V power rail; internal voltage regulator enables stable operation across wide input range.
VSS	Ground Reference	Return path for VCC; must be low-impedance connection to minimize ground bounce during write cycles.

Key Features

Feature	Design Value
Embedded ECC Logic	Corrects single-bit errors and detects double-bit errors across entire 128 Kbyte array - eliminates need for external software CRC layers.
Lockable Identification Page	256-byte dedicated area with permanent read-only lock; stores ST device ID (0x20, 0xE0, 0x11) and user-critical parameters (e.g., VIN, calibration offsets).
Fast Write Timing	≤4 ms byte/page write time - enables sub-10 ms firmware update segments without blocking MCU real-time tasks.
Extended Voltage Range	2.5 V minimum VCC - supports direct interfacing with low-voltage MCUs and battery-backed systems down to 2.7 V.
Automotive Qualification	AEC-Q100 Grade 1 certified - validated for 125 °C continuous operation and thermal cycling per automotive reliability standards.

Applications

Engine Control Unit (ECU)

Advanced Driver Assistance Systems (ADAS)

Use Scenario: Storing adaptive fuel trim tables and misfire counters updated every 100 ms during engine runtime.

IC Role / Device Role / Timing Role: Nonvolatile configuration storage with ECC-protected byte-write capability and 125 °C operational margin.

Use Value: Enables closed-loop learning without external error-checking logic; 1.2M write cycles ensure >15 years of daily cold-start updates.

Use Scenario: Retaining camera calibration coefficients and radar sensor alignment data after ignition-off.

IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter vault using lockable Identification Page for OEM-specific settings.

Use Value: Prevents unauthorized modification of safety-critical calibration data; factory ID verification confirms authentic ST device.

Battery Management System (BMS)

Instrument Cluster

Use Scenario: Logging cell voltage history and state-of-charge (SoC) drift corrections across 2000+ charge cycles.

IC Role / Device Role / Timing Role: High-endurance EEPROM with 50-year data retention at 125 °C for under-hood BMS modules.

Use Value: Eliminates need for periodic data refresh; 600 k write cycles at 125 °C guarantee reliability in high-temp battery enclosures.

Use Scenario: Storing driver preferences (seat position, display brightness) and odometer values across vehicle lifetimes.

IC Role / Device Role / Timing Role: Low-power, I²C-compatible nonvolatile memory with Schmitt-trigger inputs for noisy dashboard harnesses.

Use Value: Immune to electrical noise from adjacent infotainment switching regulators; 4000 V HBM prevents field failures during service.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AT24CS128-SSHL-T (Microchip)	128 Kbit (16 Kbytes), no identification page, 105 °C max operating temperature.	Lacks AEC-Q100 Grade 1 rating and lockable ID page; suitable only for cabin-grade modules.	Select only if memory size requirement is ≤128 Kbit and ambient temperature stays below 105 °C.
BR24M10FJ-WE2 (ROHM)	1 Mbit, AEC-Q100 Grade 2 (−40 °C to +105 °C), no ECC, no identification page.	Lower temperature grade and missing ECC reduce suitability for powertrain or safety-critical use.	Acceptable for cost-sensitive body-control modules where ECC and 125 °C operation are not required.

Compared with AT24CS128 and BR24M10FJ, the M24M01-DWMN3TP/K uniquely combines AEC-Q100 Grade 1, ECC, lockable ID page, and 125 °C operation - making it the only choice for powertrain, ADAS, and high-reliability BMS applications requiring guaranteed data integrity.

Availability

M24M01-DWMN3TP/K is available at Aetrix Electronics and suitable for engine control units, ADAS sensor modules, and battery management systems requiring stable component supply across automotive production lifecycles.

Supply support for M24M01-DWMN3TP/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, delivering automotive, industrial, and power discrete solutions with vertical manufacturing and rigorous quality systems.

The M24M01-DWMN3TP/K belongs to ST's automotive EEPROM product line, engineered specifically for AEC-Q100-compliant data logging, calibration storage, and secure parameter retention in harsh-temperature vehicle subsystems.

FAQ

What is the function of the WC pin on the M24M01-DWMN3TP/K?

The WC (Write Control) pin is an active-high hardware lock that disables all write operations to the memory array when driven high. When left floating or pulled low, writes are enabled. During WC = high, device select and address bytes are acknowledged but data bytes are not - preventing accidental overwrites in safety-critical firmware contexts.

How does the Identification Page differ from main memory?

The Identification Page is a dedicated 256-byte section separate from the main 128 Kbyte array. It contains factory-programmed ST device codes (0x20, 0xE0, 0x11) in its first three bytes and user-writable fields thereafter. Unlike main memory, it supports a permanent lock command that disables all future writes to the entire page - ensuring immutable OEM data and device authenticity.

Can the M24M01-DWMN3TP/K operate reliably at 1 MHz across its full temperature range?

Yes - the device is fully characterized for 1 MHz I²C operation from −40 °C to +125 °C. AC timing parameters (t_LOW, t_HIGH, t_SU:STA, etc.) are guaranteed across this range per Table 12 of the datasheet, and Schmitt-trigger inputs maintain noise immunity even at maximum frequency and temperature extremes.

Is ECC applied to the Identification Page as well as main memory?

No - ECC logic applies only to the main 128 Kbyte memory array. The Identification Page has no built-in error correction; however, its contents are typically written once during manufacturing and locked, minimizing exposure to bit errors. For applications requiring ECC on ID data, external software CRC or redundant storage must be implemented.

M24M01-DWMN3TP/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:: 1Mbit

Memory Organization:: 128K x 8

Memory Interface:: I2C

Clock Frequency:: 1 MHz

Write Cycle Time - Word, Page:: 4ms

Access Time:: 450 ns

Voltage - Supply:: 2.5V ~ 5.5V

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

M24M01-DWMN3TP/K FAQ

1.How can I place an order for M24M01-DWMN3TP/K through Aetrix?

Please submit a Request for Quotation (RFQ) for M24M01-DWMN3TP/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 M24M01-DWMN3TP/K reliable?

The price and inventory of M24M01-DWMN3TP/K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24M01-DWMN3TP/K is usually 5 days.

3.What payment methods are accepted for M24M01-DWMN3TP/K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24M01-DWMN3TP/K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M24M01-DWMN3TP/K?

M24M01-DWMN3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M24M01-DWMN3TP/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 M24M01-DWMN3TP/K?

For technical support, including M24M01-DWMN3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24M01-DWMN3TP/K requirements.

6.How does Aetrix verify that M24M01-DWMN3TP/K is sourced from the original manufacturer or authorized distributors?

All M24M01-DWMN3TP/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 M24M01-DWMN3TP/K meets industry standards.

7.What is the process for return or replacement of M24M01-DWMN3TP/K?

All M24M01-DWMN3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24M01-DWMN3TP/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 M24M01-DWMN3TP/K part is unused and in its original packaging.

Return procedure for M24M01-DWMN3TP/K:

1.Submit a request within 90 days.

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

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