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STMicroelectronics M24C02-DRDW3TP/K
- Part No.:
- M24C02-DRDW3TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24C02-DRDW3TP/K.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,765
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Product details
Overview
M24C02-DRDW3TP/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM with 2 Kbits (256 bytes) of I²C-compatible memory, 1 MHz max clock rate, and operation from -40 °C to 125 °C at 1.7–5.5 V. It features a 16-byte page size, embedded ECC for single-bit error correction, and a dedicated 16-byte identification page with permanent lock capability - used in engine control units for calibration storage.
For engineers reviewing the M24C02-DRDW3TP/K datasheet, M24C02-DRDW3TP/K pinout, M24C02-DRDW3TP/K application, or M24C02-DRDW3TP/K equivalent, key selection criteria include write endurance at 125 °C (600 k cycles), identification page locking behavior, WC pin-controlled write protection, and TSSOP8 package compatibility with automotive PCB thermal cycling requirements.
Technical Context
The M24C02-DRDW3TP/K implements a true EEPROM array organized as 16 pages × 16 bytes with built-in ECC logic per byte, enabling automatic single-bit error detection and correction during read operations. Its I²C interface supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes, with Schmitt-triggered SDA/SCL inputs for robust noise immunity in automotive environments.
Chip enable (E2/E1/E0) pins allow up to eight devices on one bus via 3-bit hardware address coding; write control (WC) disables all writes when high, while the identification page supports device ID readout (ST code 20h/E0h/08h) and application parameter storage with irreversible lock functionality.
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 patch storage with page-aligned updates. |
| I²C clock max | 1 MHz - supports high-speed configuration loading in real-time automotive subsystems without bus contention delays. |
| Operating temp | -40 °C to +125 °C - qualified for under-hood ECUs and transmission control modules per AEC-Q100 Grade 1. |
| Write endurance | 600 k cycles at 125 °C - ensures reliable recalibration logging over full vehicle lifetime in high-temp environments. |
| Data retention | 50 years at 125 °C - guarantees integrity of safety-critical calibration data without periodic refresh. |
| Supply voltage | 1.7 V to 5.5 V - interoperable with 3.3 V and 5 V microcontroller I/O domains without level shifting. |
| ECC support | Single-bit error correction per byte - eliminates need for external CRC checks in safety-relevant parameter storage. |
Pinout & Package
Package: RoHS-compliant, halogen-free TSSOP8 (DW), 169 mil width, 0.65 mm pitch - optimized for automated optical inspection and thermal reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to minimize noise coupling into SDA/SCL. |
| WC | Write control input | Active-high lock: disables all memory writes when driven high; floating or low enables write access. |
| E1, E0 | Chip enable address bits | Set 3-bit hardware address (with E2) to select among up to 8 devices on same I²C bus; tied to VSS/VCC per design. |
| VCC | Power supply | 1.7–5.5 V operation; requires local 10–100 nF decoupling capacitor near pin for stable write-cycle timing. |
| SCL | Serial clock input | CMOS/Schmitt-triggered; controls data sampling edge (rising) and ACK timing; open-drain compatible. |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up resistor; supports wired-AND with other I²C slaves. |
| E2 | Chip enable address bit | Third bit of 3-bit hardware address; determines unique device select code (1010b + E2E1E0) on I²C bus. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated identification page | 16-byte read-only page pre-programmed with ST manufacturer code (20h/E0h/08h); usable for secure device authentication or locked calibration constants. |
| Permanent lock mechanism | Irreversible lock command (1011b + A7=1) disables all future writes to identification page - prevents tampering with safety-critical parameters. |
| Fast write timing | 4 ms max byte/page write time - enables rapid parameter updates during vehicle startup or diagnostic mode without blocking main CPU. |
| ESD robustness | 4000 V HBM - withstands handling and assembly stresses in automotive manufacturing without additional protection circuitry. |
| Power-on reset | Internal POR circuit holds device inactive until VCC exceeds VRES threshold - prevents spurious writes during power ramp-up. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing and updating fuel injection timing maps and knock sensor calibration coefficients across vehicle lifetime. IC Role / Device Role / Timing Role: Non-volatile configuration storage with ECC-protected reads and WC-gated writes during active engine operation. Use Value: Ensures calibration integrity after 100k+ thermal cycles and 600k write cycles at 125 °C, meeting ISO 26262 ASIL-B data persistence requirements. | Use Scenario: Retaining camera lens distortion coefficients and radar beam alignment offsets after factory calibration. IC Role / Device Role / Timing Role: Secure, lockable parameter vault accessed only during service-mode calibration; identification page stores ST device ID for traceability. Use Value: Prevents unauthorized modification of ADAS sensor parameters via irreversible identification page lock, supporting UNECE R156 compliance. |
| Transmission Control Module (TCM) | Body Control Module (BCM) |
Use Scenario: Logging gear shift adaptation values and torque converter clutch learning history under varying oil temperatures. IC Role / Device Role / Timing Role: High-endurance EEPROM interfaced via 1 MHz I²C to MCU; WC pin tied low during adaptive learning, high during normal driving. Use Value: Delivers 600k write cycles at 125 °C - sufficient for >15-year service life with daily adaptive updates in hot transmission environments. | Use Scenario: Storing user-configurable lighting sequences, door lock preferences, and seat position memories. IC Role / Device Role / Timing Role: Low-voltage (1.7 V) compatible serial EEPROM enabling reliable parameter save during battery brownout conditions. Use Value: Maintains settings through 1.7 V minimum supply - critical for retaining user preferences during cold-cranking or alternator failure events. |
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 identification page or ECC. | Limited to cabin electronics; lacks 125 °C rating and lockable ID page required for powertrain use. | Select only for non-critical interior modules where extended temperature and tamper resistance are not mandated. |
| BR24G02-3MNUX | 2 Kbit I²C EEPROM, AEC-Q100 Grade 1, 1.7–5.5 V, but no identification page or ECC; uses DFN package. | Missing ECC and ID page lock - unsuitable for ASIL-B systems requiring fault-tolerant parameter storage. | Prefer where board space is constrained (DFN2030) and ECC/ID security are secondary to footprint reduction. |
Compared with AT24C02C-SSHM-T and BR24G02-3MNUX, the M24C02-DRDW3TP/K uniquely combines 125 °C operation, per-byte ECC, and a permanently lockable identification page - making it the only option qualified for ASIL-B powertrain calibration storage where data integrity and anti-tampering are mandatory.
Availability
M24C02-DRDW3TP/K is available at Aetrix Electronics and suitable for engine control units, ADAS calibration systems, transmission control modules, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for M24C02-DRDW3TP/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 vertical manufacturing and AEC-Q100 validation infrastructure.
The M24C series targets automotive-grade non-volatile memory applications, designed specifically for calibration storage, sensor offset compensation, and secure parameter retention in ASIL-B systems operating up to 125 °C.
FAQ
What is the function of the WC pin on the M24C02-DRDW3TP/K?
The WC (Write Control) pin is an active-high input that disables all write operations to the memory array when driven high. When low or floating, writes are enabled. During WC = high, device select and address bytes are acknowledged, but data bytes receive NoACK - preventing accidental overwrites during system runtime or power transitions.
How does the identification page differ from the main memory array?
The identification page is a separate 16-byte region accessible via device type identifier 1011b (vs. 1010b for main memory). It contains ST's pre-programmed device ID (bytes 0–2) and four user-programmable bytes, and can be permanently locked in read-only mode using a dedicated lock instruction - unlike the main array, which remains fully writable unless protected by WC.
Can the M24C02-DRDW3TP/K operate reliably at 1.7 V supply?
Yes - the device is fully specified from 1.7 V to 5.5 V, including all AC parameters (1 MHz clock, 4 ms write time) and DC characteristics (logic thresholds, leakage). At 1.7 V, it maintains full AEC-Q100 Grade 1 qualification down to -40 °C, enabling use in low-voltage automotive subsystems such as battery management or passive entry systems.
Is ECC applied to the identification page as well as main memory?
No - ECC logic is implemented only on the main 256-byte memory array (16 pages × 16 bytes). The identification page has no embedded error correction; its integrity relies on the permanent lock feature and factory programming. ST's datasheet explicitly states "ECC x 1" applies to the memory array, with no mention of ECC coverage for the ID page.
M24C02-DRDW3TP/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:
- 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-TSSOP
M24C02-DRDW3TP/K FAQ
1.How can I place an order for M24C02-DRDW3TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C02-DRDW3TP/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-DRDW3TP/K reliable?
The price and inventory of M24C02-DRDW3TP/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-DRDW3TP/K is usually 5 days.
3.What payment methods are accepted for M24C02-DRDW3TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C02-DRDW3TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C02-DRDW3TP/K?
M24C02-DRDW3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C02-DRDW3TP/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-DRDW3TP/K?
For technical support, including M24C02-DRDW3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C02-DRDW3TP/K requirements.
6.How does Aetrix verify that M24C02-DRDW3TP/K is sourced from the original manufacturer or authorized distributors?
All M24C02-DRDW3TP/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-DRDW3TP/K meets industry standards.
7.What is the process for return or replacement of M24C02-DRDW3TP/K?
All M24C02-DRDW3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24C02-DRDW3TP/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-DRDW3TP/K part is unused and in its original packaging.
Return procedure for M24C02-DRDW3TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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