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STMicroelectronics M24M01-DWDW3TP/K
- Part No.:
- M24M01-DWDW3TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24M01-DWDW3TP/K.pdf
- Description:
- IC EEPROM 1MBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
M24M01-DWDW3TP/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM delivering 1 Mbit (128 Kbytes) of I²C-compatible nonvolatile memory with 1 MHz clock support, 256-byte page size, and extended operation from −40 °C to +125 °C at 2.5 V–5.5 V supply - deployed for calibration storage in engine control units.
For engineers reviewing the M24M01-DWDW3TP/K datasheet, M24M01-DWDW3TP/K pinout, M24M01-DWDW3TP/K application, or M24M01-DWDW3TP/K equivalent, key selection criteria include write endurance at 125 °C (600 k cycles), identification page lockability, Schmitt-trigger noise immunity, and TSSOP8 package compatibility with automotive PCB layouts.
Technical Context
The M24M01-DWDW3TP/K implements a true EEPROM cell array with embedded Error Correction Code (ECC) logic across all 512 pages, enabling reliable byte-alterable storage without external error handling. It supports full I²C bus modes - 1 MHz, 400 kHz, and 100 kHz - with ACK polling for write cycle completion detection.
Its dual addressing scheme separates main memory (device select code 1010b) from a dedicated 256-byte Identification Page (1011b), where ST's device ID (20h/E0h/11h) resides and user parameters may be permanently locked via WC pin assertion. Chip Enable inputs E2/E1 allow up to four devices on one I²C bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 1 Mbit (128 Kbytes), organized as 512 × 256-byte pages - enables modular firmware parameter partitioning. |
| I²C clock frequency | Up to 1 MHz - reduces EEPROM access latency in time-critical automotive diagnostics. |
| Operating temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood ECU deployment. |
| Write endurance | 600 k cycles at 125 °C - ensures long-term reliability in high-temperature engine management systems. |
| Data retention | 50 years at 125 °C - guarantees calibration data integrity over full vehicle lifetime without refresh. |
| Supply voltage | 2.5 V to 5.5 V - interoperable with 3.3 V and 5 V automotive microcontroller I/O domains. |
| ESD protection | 4000 V HBM - withstands assembly and service-level electrostatic discharge events. |
Pinout & Package
Supplied in RoHS-compliant, halogen-free TSSOP8 (DW) package (169 mil width), with 0.65 mm pitch and exposed pad not connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E2, E1 | Chip Enable address inputs | Set 2-bit device select code (b3,b2); tied to VSS/VCC to configure unique I²C address among up to four devices. |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up; shares bus with other I²C slaves. |
| SCL | Serial Clock input | Master-generated clock strobe; sampled on rising edge for data setup/hold timing compliance. |
| WC | Write Control input | Active-high hardware write lock - disables all writes when driven high, including to Identification Page. |
| VCC | Power supply | 2.5–5.5 V operating range; internal voltage regulator enables stable core operation across rail variation. |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Identification Page with lock | 256-byte dedicated area storing ST device ID (20h/E0h/11h) and user parameters; permanently read-only after WC-enabled lock command. |
| Schmitt trigger inputs | On SCL, SDA, E2, E1, and WC pins - rejects ±100 mV noise spikes common in automotive harness environments. |
| Page Write time | ≤4 ms per 256-byte page - enables fast bulk configuration updates during ECU reprogramming sequences. |
| Byte Write time | ≤4 ms per byte - supports real-time logging of transient sensor events without bus blocking. |
| Embedded ECC logic | Corrects single-bit errors and detects double-bit errors across all 128 Kbytes - eliminates need for external error-handling firmware. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing fuel injection timing maps, knock sensor calibration offsets, and OBD-II fault codes across vehicle lifetime. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed asynchronously by MCU during boot and runtime via I²C at 400 kHz. Use Value: 50-year data retention at 125 °C ensures calibration persistence through thermal cycling in under-hood environments. |
Use Scenario: Holding camera lens distortion coefficients, radar beamforming profiles, and sensor fusion weights in front-camera modules. IC Role / Device Role / Timing Role: Secure configuration vault accessed only during system initialization; Identification Page stores OEM-specific keys. Use Value: Hardware WC pin lock prevents runtime corruption of safety-critical ADAS parameters during CAN/FlexRay communication bursts. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Retaining window position limits, mirror fold/unfold angles, and lighting dimming curves across ignition cycles. IC Role / Device Role / Timing Role: Low-power I²C slave with automatic address decoding (E2/E1); responds only to assigned 7-bit address. Use Value: 2.5 V minimum supply allows direct interface with 3.3 V BCM power domain without level-shifting. |
Use Scenario: Saving torque sensor zero-point offsets, motor phase resistance values, and fail-safe steering assist thresholds. IC Role / Device Role / Timing Role: Safety-relevant memory element with AEC-Q100 Grade 1 qualification and ECC-protected reads. Use Value: 600 k write cycles at 125 °C supports frequent recalibration during EPS motor thermal management cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24CS128-SSHL-T | 128 Kbit (16 Kbytes), no Identification Page, max 125 °C, 1 MHz I²C, but lacks ECC and WC pin lock. | Lower density; suitable for non-safety-critical infotainment settings where ECC and permanent lock are optional. | Select if cost sensitivity outweighs ECC requirement and memory size suffices for target use case. |
| BR24M10FJ-WE2 | 1 Mbit, 125 °C, 1 MHz I²C, includes WP pin but no dedicated Identification Page or ECC logic. | Compatible pinout (TSSOP8), but requires external software ECC and lacks factory-programmed ID fields. | Choose when legacy BR24Mxx footprint reuse is mandatory and ECC can be implemented in host firmware. |
Compared with AT24CS128-SSHL-T and BR24M10FJ-WE2, the M24M01-DWDW3TP/K uniquely integrates ECC, a lockable Identification Page with ST device ID, and AEC-Q100 Grade 1 validation - making it the only option for ASIL-B–aligned calibration storage where hardware-enforced data integrity is required.
Availability
M24M01-DWDW3TP/K is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, body control modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for M24M01-DWDW3TP/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, designing and manufacturing microcontrollers, power ICs, sensors, and memory products for automotive, industrial, and consumer markets.
The M24M01-DWDW3TP/K belongs to ST's automotive-grade serial EEPROM product line, engineered specifically for AEC-Q100-compliant data logging and calibration storage in harsh-temperature electronic control units.
FAQ
What is the function of the WC pin on the M24M01-DWDW3TP/K?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including Byte Write, Page Write, and Identification Page Write-when driven high. It does not affect read operations. This provides deterministic, glitch-immune protection against accidental overwrites during system power transitions or software faults, and is essential for safeguarding calibrated parameters in safety-critical automotive applications.
How does the Identification Page differ from main memory?
The Identification Page is a dedicated 256-byte region accessible only via device select code 1011b (vs. 1010b for main memory). It contains three factory-programmed bytes (20h/E0h/11h) identifying ST and the device, followed by user-writable space. Once locked using the WC pin, the entire page becomes read-only - unlike main memory, which supports standard I²C write commands without hardware lock enforcement.
Is the M24M01-DWDW3TP/K compatible with standard I²C bus speeds?
Yes - the M24M01-DWDW3TP/K fully supports standard I²C bus modes: 100 kHz (standard mode), 400 kHz (fast mode), and 1 MHz (fast-mode plus). Its Schmitt-trigger inputs and guaranteed tBUF, tHD;STA, and tSU;STA timing parameters ensure robust interoperability with any I²C master compliant with NXP UM10204, including automotive MCUs like S32K144 and RH850/F1K.
What package variant does M24M01-DWDW3TP/K use?
The M24M01-DWDW3TP/K uses the TSSOP8 (DW) package: 8-lead thin shrink small outline, 169 mil width, 0.65 mm lead pitch, RoHS-compliant and halogen-free (ECOPACK®2). Pin 1 is marked by a dot or bevelled corner; the package drawing matches ST's mechanical specification document DM00155773, and is footprint-compatible with industry-standard TSSOP8 land patterns.
M24M01-DWDW3TP/K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
M24M01-DWDW3TP/K FAQ
1.How can I place an order for M24M01-DWDW3TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24M01-DWDW3TP/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-DWDW3TP/K reliable?
The price and inventory of M24M01-DWDW3TP/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-DWDW3TP/K is usually 5 days.
3.What payment methods are accepted for M24M01-DWDW3TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24M01-DWDW3TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24M01-DWDW3TP/K?
M24M01-DWDW3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24M01-DWDW3TP/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-DWDW3TP/K?
For technical support, including M24M01-DWDW3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24M01-DWDW3TP/K requirements.
6.How does Aetrix verify that M24M01-DWDW3TP/K is sourced from the original manufacturer or authorized distributors?
All M24M01-DWDW3TP/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-DWDW3TP/K meets industry standards.
7.What is the process for return or replacement of M24M01-DWDW3TP/K?
All M24M01-DWDW3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24M01-DWDW3TP/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-DWDW3TP/K part is unused and in its original packaging.
Return procedure for M24M01-DWDW3TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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