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STMicroelectronics M24C64-DRMN3TP/K
- Part No.:
- M24C64-DRMN3TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C64-DRMN3TP/K.pdf
- Description:
- IC EEPROM 64KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
M24C64-DRMN3TP/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM delivering 64 Kbit (8 Kbyte) nonvolatile storage over I²C at up to 1 MHz clock rate, with 32-byte page write capability, extended -40 °C to 125 °C operation, and integrated ECC for enhanced data integrity in engine control units and ADAS modules.
For engineers reviewing the M24C64-DRMN3TP/K datasheet, M24C64-DRMN3TP/K pinout, M24C64-DRMN3TP/K application, or M24C64-DRMN3TP/K equivalent, key selection criteria include its 1.7–5.5 V supply range, 4 ms max byte/page write time, 4 million write cycles at 25 °C, identification page lockability, and TSSOP8 package compatibility with high-density PCB layouts.
Technical Context
The device operates as a slave on the I²C bus using standard Start/Stop protocols and 7-bit addressing with three Chip Enable inputs (E2/E1/E0) enabling up to eight devices per bus. It supports all I²C modes: 100 kHz, 400 kHz, and 1 MHz.
Its memory array comprises 256 pages × 32 bytes, plus a dedicated 32-byte identification page with factory-programmed ST device codes (0x20, 0xE0, 0x0D) and user-writable fields that can be permanently locked via WC pin assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 64 Kbit (8 Kbyte), organized as 256 × 32-byte pages - enables efficient firmware parameter storage with minimal address overhead. |
| I²C clock support | Up to 1 MHz - reduces transaction latency in real-time automotive subsystems versus legacy 100 kHz EEPROMs. |
| Operating voltage | 1.7 V to 5.5 V - supports direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifters. |
| Temperature range | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and transmission control applications. |
| Write endurance | 4 million cycles at 25 °C - ensures reliable calibration data logging over full vehicle lifetime in ECU reprogramming scenarios. |
| Data retention | 50 years at 125 °C - guarantees long-term integrity of safety-critical configuration data in high-temperature environments. |
| ESD protection | 4000 V HBM - provides robust immunity against assembly and field handling electrostatic discharge events. |
Pinout & Package
Supplied in RoHS-compliant, halogen-free TSSOP8 (DW) package: 3 mm × 4.4 mm body, 0.65 mm pitch, 8-lead thin shrink small outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E2, E1, E0 | Chip Enable address inputs | Set 3-bit device select code (b2–b0) to enable one of up to eight devices on shared I²C bus; floating = logic low. |
| SDA | Serial Data bidirectional line | Open-drain I/O requiring external pull-up; carries address, command, and data; supports wire-OR bus topology. |
| SCL | Serial Clock input | Master-generated clock synchronizing all data transfers; Schmitt-trigger input rejects noise on long traces. |
| WC | Write Control input | High = entire memory array write-inhibited; low/floating = write enabled - hardware-level write protection independent of software. |
| VCC | Supply voltage | 1.7–5.5 V power rail; internal charge pump enables EEPROM programming across full voltage range. |
| VSS | Ground reference | System ground return path; must be low-impedance to maintain noise margin during write cycles. |
Key Features
| Feature | Design Value |
|---|---|
| Identification page with lock | 32-byte dedicated area containing ST device ID (0x20/0xE0/0x0D) and user fields; permanently read-only after WC-assisted lock - secures calibration constants and anti-tamper identifiers. |
| Embedded ECC logic | On-the-fly error correction for all memory reads - eliminates need for external CRC checks and improves functional safety compliance in ASIL-B systems. |
| Short write cycle time | ≤4 ms for both byte and page writes - minimizes bus occupancy and enables rapid parameter updates during vehicle runtime. |
| Extended voltage range | 1.7–5.5 V operation - eliminates separate LDO for EEPROM biasing in mixed-voltage ECUs and simplifies power architecture. |
| Schmitt trigger inputs | On SCL and SDA - suppresses signal ringing and contact bounce in noisy automotive harness environments without external filtering. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Storing adaptive fuel trim values, misfire counters, and OBD-II diagnostic trouble codes across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 50-year data retention at 125 °C ambient - maintains calibration integrity during thermal cycling in engine bay mounting. Use Value: Eliminates reliance on battery-backed SRAM; supports ISO 16750-4 pulse testing due to 4000 V HBM ESD rating and robust write endurance. |
Use Scenario: Retaining camera calibration offsets, radar sensor alignment data, and lane-departure warning thresholds after power-down. IC Role / Device Role / Timing Role: Secure, lockable identification page stores manufacturer-specific sensor IDs and cryptographic keys - prevents unauthorized module replacement. Use Value: ECC-enabled reads ensure bit-error-free access to safety-critical configuration data required for ASIL-B compliance in automated braking systems. |
| Transmission Control Module (TCM) | Body Control Module (BCM) |
|
Use Scenario: Logging gear-shift learning parameters, clutch wear metrics, and torque converter lock-up profiles over vehicle lifetime. IC Role / Device Role / Timing Role: High-endurance 4 million write cycles at 25 °C - sustains daily recalibration without premature wear-out in 15-year service life. Use Value: 1 MHz I²C interface enables sub-millisecond parameter fetches during real-time shift scheduling, reducing latency versus 400 kHz alternatives. |
Use Scenario: Maintaining door lock programming, lighting sequence preferences, and seat position memory across vehicle power cycles. IC Role / Device Role / Timing Role: Dual-voltage support (1.7–5.5 V) allows direct connection to 3.3 V CAN transceivers and 5 V LIN drivers - reduces BOM count. Use Value: TSSOP8 footprint enables placement near microcontroller I²C pins on space-constrained BCM PCBs without routing congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C64D-SSHM-T | Same 64 Kbit capacity and I²C interface, but AEC-Q100 Grade 2 (-40 °C to 105 °C); no identification page or ECC. | Limited to cabin electronics (e.g., infotainment) where 125 °C operation and secure ID storage are unnecessary. | Select when cost sensitivity outweighs extended temperature and security requirements. |
| BR24G64FJ-3GE2 | 64 Kbit, 1.7–5.5 V, -40 °C to 105 °C; includes WP pin but no identification page; 1 MHz support only at VCC ≥ 2.5 V. | Suitable for gateway modules with mixed-voltage domains but not under-hood deployment requiring full 125 °C rating. | Choose for designs needing ROHS-compliant SOP8 packaging and lower unit cost, accepting reduced thermal margin. |
Compared with AT24C64D-SSHM-T and BR24G64FJ-3GE2, the M24C64-DRMN3TP/K uniquely delivers AEC-Q100 Grade 1 qualification, integrated ECC, and a lockable identification page - making it the only option for safety-critical, high-temperature automotive storage where data authenticity and long-term reliability are mandatory.
Availability
M24C64-DRMN3TP/K is available at Aetrix Electronics and suitable for engine control units, ADAS sensors, transmission control modules, and body control modules requiring stable component supply across extended automotive lifecycles.
Supply support for M24C64-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 ICs, with broad portfolio coverage from microcontrollers to analog and memory solutions.
The M24C64-A125 belongs to ST's automotive-grade serial EEPROM product line, engineered specifically for mission-critical data storage in harsh-temperature vehicle subsystems requiring AEC-Q100 compliance and long-term data integrity.
FAQ
What is the function of the WC pin on the M24C64-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-regardless of I²C commands. When low or floating, writes are enabled. This feature prevents accidental overwrites during power transients or firmware errors, and is required to lock the identification page permanently.
Does the M24C64-DRMN3TP/K support standard I²C addressing with multiple devices on one bus?
Yes. The device uses a 7-bit I²C address formed by a fixed 4-bit type identifier (1010b for main memory, 1011b for identification page) plus a 3-bit chip enable code set by E2/E1/E0 pins. Up to eight M24C64-DRMN3TP/K devices can coexist on a single I²C bus, each assigned a unique 3-bit address via hardwired E-pin states.
How does the identification page differ from the main memory array?
The identification page is a dedicated 32-byte section separate from the 64 Kbit main array. Its first three bytes contain immutable ST device codes (0x20, 0xE0, 0x0D); remaining bytes are user-writable. Unlike main memory, this page can be permanently locked in read-only mode via a specific I²C command sequence initiated with WC = high, preventing further modification of calibration or security data.
Is ECC functionality user-configurable or always active?
ECC is fully transparent and always active on all read operations from the main memory array. No configuration register or command is needed-the logic automatically detects and corrects single-bit errors in real time. This eliminates software overhead and ensures bit-error-free data delivery critical for ASIL-B functional safety compliance without developer intervention.
M24C64-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:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K 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
M24C64-DRMN3TP/K FAQ
1.How can I place an order for M24C64-DRMN3TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C64-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 M24C64-DRMN3TP/K reliable?
The price and inventory of M24C64-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 M24C64-DRMN3TP/K is usually 5 days.
3.What payment methods are accepted for M24C64-DRMN3TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C64-DRMN3TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C64-DRMN3TP/K?
M24C64-DRMN3TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C64-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 M24C64-DRMN3TP/K?
For technical support, including M24C64-DRMN3TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C64-DRMN3TP/K requirements.
6.How does Aetrix verify that M24C64-DRMN3TP/K is sourced from the original manufacturer or authorized distributors?
All M24C64-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 M24C64-DRMN3TP/K meets industry standards.
7.What is the process for return or replacement of M24C64-DRMN3TP/K?
All M24C64-DRMN3TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24C64-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 M24C64-DRMN3TP/K part is unused and in its original packaging.
Return procedure for M24C64-DRMN3TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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