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STMicroelectronics M24128-DRMN3TP/K
- Part No.:
- M24128-DRMN3TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24128-DRMN3TP/K.pdf
- Description:
- IC EEPROM 128KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:21,850
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Product details
Overview
M24128-DRMN3TP/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM delivering 128 Kbit (16 Kbyte) nonvolatile storage over I²C bus at up to 1 MHz clock rate, with 64-byte page size, -40 °C to 125 °C operating range, and integrated ECC for enhanced data integrity in engine control units.
For engineers reviewing the M24128-DRMN3TP/K datasheet, M24128-DRMN3TP/K pinout, M24128-DRMN3TP/K application, or M24128-DRMN3TP/K equivalent, key selection criteria include write endurance at 125 °C (600 k cycles), identification page lockability, Schmitt-trigger noise immunity, and SO8N (150 mil) RoHS/halogen-free ECOPACK2® packaging.
Technical Context
The device operates as a slave on the I²C bus with full compatibility across 100 kHz, 400 kHz, and 1 MHz modes. It implements a 256-page × 64-byte memory array with dedicated 64-byte identification page supporting read, write, and permanent lock functions.
Write control (WC) enables hardware-level write protection; chip enable (E2/E1/E0) allows up to eight devices on one bus via 3-bit address decoding. Internal high-voltage generator eliminates need for external programming voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 128 Kbit (16 Kbyte) organized as 256 pages × 64 bytes - enables efficient firmware parameter storage with page-aligned writes. |
| I²C clock frequency | Up to 1 MHz - supports fast configuration updates in real-time automotive subsystems without bus bottlenecks. |
| Operating temperature | -40 °C to 125 °C - qualified per AEC-Q100 Grade 1 for under-hood applications including transmission control and battery management. |
| Supply voltage range | 1.7 V to 5.5 V - interoperable with 3.3 V and 5 V microcontrollers and tolerant of automotive battery transients. |
| Write endurance @ 125 °C | 600,000 cycles - ensures reliable calibration data logging over full vehicle lifetime in high-temperature environments. |
| Data retention @ 125 °C | 50 years - guarantees long-term integrity of safety-critical configuration data without refresh overhead. |
| ESD protection (HBM) | 4000 V - meets automotive ESD robustness requirements for assembly and field operation. |
Pinout & Package
Package: SO8N (150 mil body width), RoHS-compliant and halogen-free ECOPACK2®.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E2, E1, E0 | Chip Enable address inputs | Set 3-bit device select code (b2–b0) to allow up to eight M24128 devices on same I²C bus; floating defaults to logic low. |
| SDA | Serial Data bidirectional line | Open-drain I/O requiring external pull-up; supports multi-master arbitration and wire-OR bus topology. |
| SCL | Serial Clock input | Master-generated clock synchronizing all data transfers; Schmitt-trigger input rejects noise on long harness traces. |
| WC | Write Control input | Hardware lock: high = entire memory write-inhibited; low or floating = write enabled - critical for preventing corruption during power transitions. |
| VSS | Ground reference | System ground return path; must be low-impedance to maintain noise margin for I²C signaling. |
| VCC | Power supply | Single 1.7–5.5 V rail powers EEPROM and internal charge pump - eliminates need for auxiliary voltage sources. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ECC logic | Corrects single-bit errors and detects double-bit errors in real time - eliminates need for external error-handling firmware overhead. |
| Lockable identification page | 64-byte dedicated area storing ST device ID (00h–02h) and user parameters; permanently read-only after lock command - secures calibration constants and anti-tamper data. |
| Short write cycle time | ≤4 ms for both byte and page writes - minimizes bus occupancy and enables rapid parameter updates in time-critical control loops. |
| Extended voltage range | 1.7 V to 5.5 V operation - supports direct interface with legacy 5 V MCUs and modern 1.8 V/3.3 V SoCs without level shifters. |
| Schmitt-trigger inputs | On SCL and SDA - suppresses electromagnetic noise in automotive wiring harnesses, improving I²C reliability without external filtering. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Storing adaptive fuel trim values, knock sensor learning offsets, and emission calibration maps that persist across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed 50-year data retention at 125 °C and ECC-protected reads during runtime. Use Value: Eliminates recalibration after battery disconnect and ensures compliance with OBD-II and Euro 6/7 regulatory logging requirements. |
Use Scenario: Retaining camera lens distortion coefficients, radar sensor alignment offsets, and fusion algorithm weights across power-down events. IC Role / Device Role / Timing Role: Secure, lockable parameter vault accessed via I²C during boot and runtime reconfiguration. Use Value: Enables zero-latency resume of ADAS functionality post-power-loss while preventing unauthorized modification of safety-critical coefficients. |
| Electric Powertrain Inverter | Automotive Body Control Module (BCM) |
|
Use Scenario: Logging thermal derating thresholds, gate driver timing trims, and fault history records in high-temperature inverter enclosures. IC Role / Device Role / Timing Role: High-temp EEPROM with 600 k write cycles at 125 °C and 4 ms page writes for rapid fault capture. Use Value: Supports ISO 26262 ASIL-B diagnostic data persistence without external temperature compensation or refresh routines. |
Use Scenario: Storing seat position memory, mirror fold/unfold settings, and lighting profile preferences tied to vehicle key fobs. IC Role / Device Role / Timing Role: Low-power, 1.7 V–capable serial EEPROM interfaced directly to 3.3 V BCM microcontroller I²C peripheral. Use Value: Reduces BOM count by eliminating level shifters and extends battery life in always-on modules via ultra-low standby current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24CS128-SSHM-T (Microchip) | 128 Kbit, I²C up to 1 MHz, but rated only to 105 °C (AEC-Q100 Grade 2); no identification page; no ECC. | Limited to cabin modules or lower-temp zones; lacks secure parameter locking and error correction for safety-critical use. | Select only if ambient temperature stays below 105 °C and ECC/lock features are unnecessary. |
| BR24G128FJ-3GE2 (ROHM) | 128 Kbit, I²C up to 1 MHz, AEC-Q100 Grade 1, but no identification page; write endurance 1M cycles @ 125 °C. | Higher endurance but no dedicated locked parameter space; requires external software-based ECC implementation. | Prefer when maximum write cycling dominates over secure parameter storage requirements. |
Compared with AT24CS128 and BR24G128FJ, M24128-DRMN3TP/K uniquely combines AEC-Q100 Grade 1 qualification, embedded ECC, and a lockable identification page - making it the only choice for ASIL-B-compliant calibration storage where data integrity and tamper resistance are mandatory.
Availability
M24128-DRMN3TP/K is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, electric powertrain inverters, and body control modules requiring stable component supply across extended automotive lifecycles.
Supply support for M24128-DRMN3TP/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/TS 16949 standards.
M24128-DRMN3TP/K belongs to ST's automotive-grade serial EEPROM product line, engineered specifically for mission-critical data storage in harsh-temperature vehicle subsystems where reliability, security, and longevity are non-negotiable.
FAQ
What is the function of the WC pin on M24128-DRMN3TP/K?
The WC (Write Control) pin provides hardware-level write protection: when driven high, it disables all write operations to the entire memory array-including the identification page-while still allowing device addressing and read access. This prevents accidental overwrites during power-up/down transients or system resets, and is essential for safeguarding calibration data in automotive environments.
How does the identification page differ from main memory?
The identification page is a dedicated 64-byte region separate from the main 128 Kbit array. It contains factory-programmed ST device ID bytes (00h–02h) and user-writable fields, and supports a permanent lock command that makes the entire page read-only. Unlike main memory, this page cannot be erased or rewritten after locking, providing secure storage for immutable calibration or security parameters.
Can M24128-DRMN3TP/K operate reliably at 1.7 V supply?
Yes-M24128-DRMN3TP/K is fully specified for DC and AC operation down to 1.7 V across its full temperature range (-40 °C to 125 °C). At this minimum voltage, it maintains 1 MHz I²C capability, 4 ms write times, and full ECC functionality, enabling direct interface with ultra-low-voltage microcontrollers in battery-powered automotive modules without voltage boosting.
Is ECC applied to the identification page?
Yes-embedded Error Correction Code logic covers both the main memory array and the identification page. Single-bit errors are automatically corrected during read operations, and double-bit errors are flagged, ensuring bit-level data integrity for all stored parameters including factory IDs and locked application data-critical for functional safety compliance in ASIL-B systems.
M24128-DRMN3TP/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:
- 128Kbit
- Memory Organization:
- 16K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 4ms
- Access Time:
- 450 ns
- 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-SOIC
M24128-DRMN3TP/K FAQ
1.How can I place an order for M24128-DRMN3TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24128-DRMN3TP/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 M24128-DRMN3TP/K reliable?
The price and inventory of M24128-DRMN3TP/K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24128-DRMN3TP/K is usually 5 days.
3.What payment methods are accepted for M24128-DRMN3TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24128-DRMN3TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24128-DRMN3TP/K?
M24128-DRMN3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24128-DRMN3TP/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 M24128-DRMN3TP/K?
For technical support, including M24128-DRMN3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24128-DRMN3TP/K requirements.
6.How does Aetrix verify that M24128-DRMN3TP/K is sourced from the original manufacturer or authorized distributors?
All M24128-DRMN3TP/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 M24128-DRMN3TP/K meets industry standards.
7.What is the process for return or replacement of M24128-DRMN3TP/K?
All M24128-DRMN3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24128-DRMN3TP/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 M24128-DRMN3TP/K part is unused and in its original packaging.
Return procedure for M24128-DRMN3TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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