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STMicroelectronics M24512-DRDW3TP/K
- Part No.:
- M24512-DRDW3TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24512-DRDW3TP/K.pdf
- Description:
- IC EEPROM 512KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:17,508
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Product details
Overview
M24512-DRDW3TP/K from STMicroelectronics is an automotive-grade 512-Kbit I²C serial EEPROM with AEC-Q100 Grade 1 qualification, 1 MHz clock support, 128-byte page size, and extended operation from −40 °C to +125 °C at 1.7–5.5 V. It integrates embedded ECC for enhanced data integrity and includes a dedicated 128-byte lockable Identification Page for device ID storage and application parameter retention in automotive body control modules.
For engineers reviewing the M24512-DRDW3TP/K datasheet, M24512-DRDW3TP/K pinout, M24512-DRDW3TP/K application, or M24512-DRDW3TP/K equivalent, key selection criteria include I²C bus timing compliance at 1 MHz, write endurance at 125 °C (600 k cycles), identification page locking capability, and TSSOP8 package compatibility with automotive PCB layout constraints.
Technical Context
The device implements a true EEPROM memory array organized as 64 K × 8 bits across 512 pages, with each page supporting atomic 128-byte writes. Its I²C slave interface fully complies with standard, fast, and high-speed modes (100 kHz / 400 kHz / 1 MHz), using Schmitt-trigger inputs for robust noise immunity on SCL and SDA lines.
It features hardware-based Write Control (WC) pin logic that disables all memory writes when asserted high, and supports dual addressing schemes: standard memory access (device type code 1010b) and Identification Page access (1011b), enabling secure read-only storage of calibrated parameters or firmware identifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 512 Kbit (64 Kbyte), enabling storage of firmware patches or calibration tables in compact ECUs. |
| I²C clock frequency | Up to 1 MHz - reduces EEPROM transaction time by 4× vs. 250 kHz, critical for real-time diagnostics. |
| Page size | 128 bytes - matches typical CAN FD frame payload and MCU cache line sizes for efficient bulk writes. |
| Write endurance | 600 k cycles at 125 °C - validated for under-hood applications with thermal cycling stress. |
| Data retention | 50 years at 125 °C - exceeds automotive lifetime requirements without refresh mechanisms. |
| Supply voltage range | 1.7 V to 5.5 V - supports direct connection to 3.3 V or 5 V microcontroller I/O rails without level shifters. |
| ESD protection | 4000 V HBM - meets ISO 10605 requirements for automotive assembly and handling environments. |
Pinout & Package
TSSOP8 (DW) package: 3 mm × 4.4 mm, 0.65 mm pitch, RoHS-compliant and halogen-free (ECOPACK2®).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E2, E1, E0 | Chip Enable address inputs | Set 3-bit slave address (b2–b0) for multi-device I²C bus; floating = logic low (0), enabling up to 8 devices per bus. |
| SDA | Serial Data bidirectional line | Open-drain I/O requiring external pull-up; supports wire-OR with other I²C peripherals on same bus segment. |
| SCL | Serial Clock input | Master-generated clock; Schmitt trigger input ensures reliable edge detection under noisy automotive EMI conditions. |
| WC | Write Control enable/disable | Active-high hardware lock: when high, blocks all write operations including Identification Page writes. |
| VSS | Ground reference | Primary return path for internal charge pump and I/O circuits; must be low-impedance for stable 1 MHz operation. |
| VCC | Power supply input | Accepts 1.7–5.5 V; internal voltage regulator enables consistent programming voltage across full industrial range. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ECC logic | Corrects single-bit errors and detects double-bit errors per 128-byte page, eliminating need for external error-handling firmware. |
| Identification Page | 128-byte dedicated area with permanent lock capability-stores ST device ID (0x20, 0xE0, 0x10) and user-defined parameters in tamper-resistant read-only mode. |
| Short write cycle time | ≤4 ms for both byte and page writes-enables rapid logging of fault codes during vehicle power-down sequences. |
| Extended temperature range | −40 °C to +125 °C operation with full specification-qualified per AEC-Q100 Grade 1 for engine bay and transmission control units. |
| RoHS/halogen-free packaging | ECOPACK2® certified TSSOP8-meets automotive OEM environmental compliance mandates without sacrificing thermal or mechanical performance. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Storing seat position presets, mirror calibration offsets, and lighting profiles across ignition cycles. IC Role / Device Role / Timing Role: Non-volatile configuration storage with guaranteed 50-year data retention at 125 °C ambient. Use Value: Eliminates battery-backed SRAM and associated leakage current, reducing standby power in always-on BCM subsystems. |
Use Scenario: Retaining camera lens focus calibration, radar sensor compensation coefficients, and firmware update flags. IC Role / Device Role / Timing Role: Secure, lockable parameter storage accessible via I²C at 1 MHz during boot initialization. Use Value: Enables field-upgradable ADAS calibration without exposing sensitive data to host processor memory space. |
| Engine Control Unit (ECU) | Electric Power Steering (EPS) |
|
Use Scenario: Logging diagnostic trouble codes (DTCs), fuel trim adaptation values, and misfire counters over vehicle lifetime. IC Role / Device Role / Timing Role: High-endurance EEPROM with 600 k write cycles at 125 °C for under-hood thermal resilience. Use Value: Supports continuous DTC logging during wide-open throttle events without premature wear-out. |
Use Scenario: Storing torque sensor zero-point offsets, motor phase alignment data, and safety-critical fail-safe thresholds. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 qualified non-volatile memory with ECC-protected reads during EPS active control loops. Use Value: Prevents silent data corruption in safety-critical steering assist functions, satisfying ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C512B-SSHL-T (Microchip) | 512 Kbit I²C EEPROM, but rated only to 85 °C and lacks Identification Page and ECC. | Not AEC-Q100 qualified; unsuitable for under-hood use or safety-critical parameter storage. | Select only for non-automotive industrial applications where extended temperature and lockable ID page are unnecessary. |
| BR24T512FJ-WE2 (ROHM) | 512 Kbit, AEC-Q100 Grade 2 (−40 °C to +105 °C), no ECC, no dedicated ID page, 400 kHz max clock. | Limited to cabin-located modules; cannot replace M24512-DRDW3TP/K in engine/transmission control units. | Consider only for cost-sensitive interior modules where 1 MHz speed and 125 °C operation are not required. |
Compared with AT24C512B-SSHL-T and BR24T512FJ-WE2, the M24512-DRDW3TP/K uniquely delivers AEC-Q100 Grade 1 qualification, 1 MHz I²C throughput, embedded ECC, and a lockable Identification Page-making it the sole choice for high-reliability, thermally demanding automotive control nodes requiring secure, long-term parameter persistence.
Availability
M24512-DRDW3TP/K is available at Aetrix Electronics and suitable for Body Control Modules, Engine Control Units, Advanced Driver Assistance Systems, and Electric Power Steering systems requiring stable component supply across automotive production lifecycles.
Supply support for M24512-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 specializing in automotive, industrial, and power management solutions, with over 40 years of microelectronics innovation and manufacturing excellence.
The M24512-A125 belongs to ST's automotive-qualified serial EEPROM product line, designed specifically to meet AEC-Q100 Grade 1 reliability requirements for non-volatile data storage in harsh-temperature vehicle subsystems.
FAQ
What is the function of the WC pin on the M24512-DRDW3TP/K?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including standard memory writes and Identification Page writes-when driven high. When left floating or pulled low, writes are enabled. This provides deterministic, glitch-immune protection against accidental overwrites during system startup or reset sequences, independent of firmware state.
Does the M24512-DRDW3TP/K support standard-mode (100 kHz) and fast-mode (400 kHz) I²C in addition to high-speed mode?
Yes, the M24512-DRDW3TP/K is fully compatible with all three I²C bus speeds: standard-mode (100 kHz), fast-mode (400 kHz), and high-speed mode (1 MHz). Its Schmitt-trigger inputs and optimized internal timing ensure reliable communication across all modes without external timing adjustments or bus speed negotiation.
How is the Identification Page secured and locked on the M24512-DRDW3TP/K?
The Identification Page (128 bytes) can be permanently locked in read-only mode using the "Lock Identification Page" instruction (Section 4.1.4 of the datasheet). Once locked, no further writes-including erase or overwrite-are possible. The lock is irreversible and implemented in hardware, ensuring tamper resistance for stored device IDs or calibrated parameters.
What package variant does the part number M24512-DRDW3TP/K correspond to?
M24512-DRDW3TP/K uses the TSSOP8 (DW) package: 3 mm × 4.4 mm body, 0.65 mm lead pitch, 8-lead thin shrink small outline. The "DW" in the orderable part number explicitly denotes this TSSOP8 variant, which is RoHS-compliant and halogen-free per ECOPACK2® standards.
M24512-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:
- 512Kbit
- Memory Organization:
- 64K 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
M24512-DRDW3TP/K FAQ
1.How can I place an order for M24512-DRDW3TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24512-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 M24512-DRDW3TP/K reliable?
The price and inventory of M24512-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 M24512-DRDW3TP/K is usually 5 days.
3.What payment methods are accepted for M24512-DRDW3TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24512-DRDW3TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24512-DRDW3TP/K?
M24512-DRDW3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24512-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 M24512-DRDW3TP/K?
For technical support, including M24512-DRDW3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24512-DRDW3TP/K requirements.
6.How does Aetrix verify that M24512-DRDW3TP/K is sourced from the original manufacturer or authorized distributors?
All M24512-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 M24512-DRDW3TP/K meets industry standards.
7.What is the process for return or replacement of M24512-DRDW3TP/K?
All M24512-DRDW3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24512-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 M24512-DRDW3TP/K part is unused and in its original packaging.
Return procedure for M24512-DRDW3TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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