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STMicroelectronics M24C02-DRMF3TG/K
- Part No.:
- M24C02-DRMF3TG/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
M24C02-DRMF3TG/K.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8MLP
- Quantity:
- Payment:
- Shipping:
Inventory:9,548
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Product details
Overview
M24C02-DRMF3TG/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM with 2 Kbits (256 bytes) of I²C-compatible nonvolatile memory, 1 MHz max clock rate, 1.7–5.5 V operating voltage, and -40 °C to +125 °C temperature range. It integrates ECC logic for single-bit error correction, includes a write-lockable 16-byte identification page, and supports byte/page writes with ≤4 ms cycle time - deployed in engine control units for calibration storage.
For engineers reviewing the M24C02-DRMF3TG/K datasheet, M24C02-DRMF3TG/K pinout, M24C02-DRMF3TG/K application, or M24C02-DRMF3TG/K equivalent, key selection criteria include automotive-grade reliability (AEC-Q100), I²C bus compatibility up to 1 MHz, identification page lockability, ECC-enabled data integrity, and TSSOP8 package compatibility with board-level noise immunity requirements.
Technical Context
The device operates as an I²C slave with 7-bit addressing (device type 1010b/1011b), uses Schmitt-trigger inputs on SDA/SCL for robust noise filtering, and implements internal HV generation and sequencing for EEPROM programming. Chip enable pins E2/E1/E0 allow up to eight devices on one bus via hardware-selectable 3-bit address.
It features dual-page architecture: main 256-byte array (16 × 16-byte pages) and a dedicated 16-byte identification page with permanent lock capability. Write control (WC) pin enables hardware-level memory protection - high = full-array write inhibit, low/floating = write enabled - independent of I²C command state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbits (256 × 8 bits), organized as 16 pages of 16 bytes - enables efficient firmware parameter partitioning and page-aligned updates. |
| I²C clock frequency | Up to 1 MHz - supports high-speed configuration loading in real-time automotive subsystems without bus contention. |
| Write endurance | 4 million cycles at 25 °C; 600 k at 125 °C - ensures long-term reliability in under-hood ECUs with frequent recalibration events. |
| Data retention | 50 years at 125 °C - guarantees calibration data integrity over full vehicle lifetime in high-temperature environments. |
| Operating voltage | 1.7 V to 5.5 V - compatible with 3.3 V and 5 V microcontroller I/O domains without level-shifting circuitry. |
| Temperature range | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for direct integration into powertrain and chassis control modules. |
| ESD protection | 4000 V HBM - withstands assembly handling and in-vehicle electrostatic discharge without latch-up or data corruption. |
Pinout & Package
Package: RoHS-compliant, halogen-free TSSOP8 (DW), 169 mil width, 0.65 mm pitch - optimized for automated SMT placement and thermal dissipation in dense automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal logic and EEPROM programming current; must be low-impedance to prevent read/write errors during transient load. |
| WC | Write control input | Hardware-level global write enable/disable - driven high to block all memory writes, including accidental I²C commands; no software dependency. |
| E1, E0 | Chip enable address inputs | Set lower 2 bits of 3-bit device address (E2/E1/E0); tied to VCC/VSS to configure unique I²C address among up to 8 devices on same bus. |
| VCC | Supply voltage | Power source for logic and EEPROM programming; requires local 10–100 nF decoupling capacitor to suppress supply ripple during internal write cycles. |
| SCL | Serial clock input | Master-generated clock signal with Schmitt-trigger input - tolerates slow rise/fall times and noise on automotive harnesses. |
| SDA | Serial data I/O | Open-drain bidirectional bus line; requires external pull-up resistor (value calculated per I²C speed and bus capacitance). |
| E2 | Chip enable address input | Third bit of hardware address; floating defaults to logic low - allows flexible address assignment without additional routing. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ECC logic | Single-bit error detection and correction per memory byte - eliminates need for external CRC checks in safety-critical calibration storage. |
| Identification page | 16-byte dedicated area with permanent lock capability - stores ST device ID (first 3 bytes) and application-specific parameters that survive field reprogramming. |
| Page write mode | Up to 16 bytes written atomically in ≤4 ms - reduces I²C transaction overhead and minimizes bus occupancy during multi-parameter updates. |
| Hardware write protection | WC pin disables all writes regardless of I²C command - prevents corruption during brown-out, reset, or firmware fault conditions. |
| AEC-Q100 Grade 1 qualification | Validated for 125 °C ambient operation with full electrical testing across temperature and voltage extremes - meets ISO 26262 ASIL-B supporting requirements. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance System (ADAS) Camera Module |
|---|---|
|
Use Scenario: Storing adaptive fuel trim values, ignition timing maps, and OBD-II diagnostic trouble codes across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with ECC-protected read access and hardware write lock during engine cranking transients. Use Value: Ensures calibration persistence after battery disconnect and prevents corruption during 12 V supply dips below 6 V during cold cranking. |
Use Scenario: Retaining lens focus offset, white balance coefficients, and sensor gain settings across camera power cycles. IC Role / Device Role / Timing Role: I²C-configurable parameter vault with identification page lock to preserve factory calibration data against field firmware updates. Use Value: Eliminates need for post-power-up recalibration; locked ID page guarantees traceability of sensor origin and calibration validity. |
| Electric Power Steering (EPS) Controller | Body Control Module (BCM) |
|
Use Scenario: Saving torque sensor zero-point offsets, motor phase alignment data, and steering angle learning history. IC Role / Device Role / Timing Role: Automotive-grade EEPROM interfaced directly to EPS MCU's I²C peripheral with WC pin tied to MCU GPIO for dynamic write gating. Use Value: Enables safe over-the-air (OTA) parameter updates while maintaining fail-safe write protection during active steering assist. |
Use Scenario: Holding door lock/unlock configuration, lighting dimming profiles, and seat position memory across vehicle sleep/wake cycles. IC Role / Device Role / Timing Role: Low-voltage tolerant (1.7 V) serial memory enabling reliable operation during BCM brown-out conditions below 2.5 V. Use Value: Guarantees user preference retention even during extended vehicle battery drain scenarios where VCC drops near minimum spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02C-SSHM-T | 2 Kbit I²C EEPROM, AEC-Q100 Grade 2 (-40 °C to 105 °C), no embedded ECC, no identification page. | Limited to cabin electronics (infotainment, HVAC) where full Grade 1 temp range and ECC are not required. | Select when cost sensitivity outweighs need for 125 °C operation or ECC; verify external error handling if used in safety-related functions. |
| BR24G02-3MNUC | 2 Kbit I²C EEPROM, AEC-Q100 Grade 1, 1.7–5.5 V, but only supports 400 kHz max clock and lacks WC pin. | Suitable for legacy automotive modules with slower I²C buses and software-based write protection schemes. | Choose only if system design already implements software-controlled write enable/disable and does not require hardware WC pin for fail-safe locking. |
Compared with AT24C02C-SSHM-T and BR24G02-3MNUC, the M24C02-DRMF3TG/K uniquely combines Grade 1 temperature rating, 1 MHz I²C speed, hardware WC pin, and ECC - making it the only option qualified for real-time powertrain calibration storage where deterministic write protection and data integrity are mandatory.
Availability
M24C02-DRMF3TG/K is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, electric power steering controllers, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for M24C02-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 ICs, with broad portfolio coverage from microcontrollers to analog and memory solutions.
This device belongs to ST's automotive-qualified serial EEPROM product line, designed specifically for mission-critical nonvolatile storage in harsh-temperature vehicle subsystems where data integrity and long-term reliability are non-negotiable.
FAQ
What is the function of the WC pin, and how should it be connected in a production design?
The WC (Write Control) pin provides hardware-level global write inhibition: when driven high, all memory writes - including byte, page, and identification page operations - are blocked regardless of I²C command. In production, tie WC to a dedicated MCU GPIO for dynamic control during critical states (e.g., engine cranking), or permanently to VCC for permanent lock in fixed-calibration systems. Do not leave floating unless intentional write-enable behavior is confirmed.
How does the identification page differ from the main memory array, and what happens when it is locked?
The identification page is a separate 16-byte region containing ST's device ID (bytes 0–2) and user-programmable fields (bytes 3–15). Once locked via the "lock ID" instruction, the entire page becomes read-only: subsequent write attempts return NoACK, and the lock state is irreversible. Locked status can be verified by polling the lock status command before field deployment to ensure calibration traceability.
Can this EEPROM operate reliably at 1.7 V while running at 1 MHz I²C speed?
Yes - the M24C02-DRMF3TG/K is fully specified for 1.7 V to 5.5 V operation and supports 1 MHz I²C clock across the full voltage range per DS10115 Rev 7 AC characteristics (tBUF, tHD:STA, tSU:STA all met at 1.7 V). However, ensure external pull-up resistors are sized per I²C bus capacitance and target rise time (≤100 ns) to maintain signal integrity at low VCC.
Is ECC applied to both the main memory array and the identification page?
ECC logic is implemented only on the main 256-byte memory array - each byte includes single-bit error correction. The identification page has no ECC protection; its integrity relies on write verification and lock enforcement. For applications storing critical calibration in the ID page, implement host-side CRC32 or checksum validation during initial programming and verify lock status before release.
M24C02-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:
- 2Kbit
- Memory Organization:
- 256 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-MLP (2x3)
M24C02-DRMF3TG/K FAQ
1.How can I place an order for M24C02-DRMF3TG/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C02-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 M24C02-DRMF3TG/K reliable?
The price and inventory of M24C02-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 M24C02-DRMF3TG/K is usually 5 days.
3.What payment methods are accepted for M24C02-DRMF3TG/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C02-DRMF3TG/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C02-DRMF3TG/K?
M24C02-DRMF3TG/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C02-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 M24C02-DRMF3TG/K?
For technical support, including M24C02-DRMF3TG/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C02-DRMF3TG/K requirements.
6.How does Aetrix verify that M24C02-DRMF3TG/K is sourced from the original manufacturer or authorized distributors?
All M24C02-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 M24C02-DRMF3TG/K meets industry standards.
7.What is the process for return or replacement of M24C02-DRMF3TG/K?
All M24C02-DRMF3TG/K units undergo pre-shipment inspection (PSI). If there is an issue with M24C02-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 M24C02-DRMF3TG/K part is unused and in its original packaging.
Return procedure for M24C02-DRMF3TG/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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