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STMicroelectronics M24C64-DRMF3TG/K
- Part No.:
- M24C64-DRMF3TG/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
M24C64-DRMF3TG/K.pdf
- Description:
- IC EEPROM 64KBIT I2C 1MHZ 8MLP
- Quantity:
- Payment:
- Shipping:
Inventory:7,130
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Product details
Overview
M24C64-DRMF3TG/K from STMicroelectronics is an AEC-Q100 Grade 1 automotive serial EEPROM delivering 64 Kbit (8 Kbyte) nonvolatile storage via I²C interface at up to 1 MHz clock rate, with 32-byte page write capability, extended -40 °C to 125 °C operation, and integrated identification page for device authentication in vehicle control modules.
For engineers reviewing the M24C64-DRMF3TG/K datasheet, M24C64-DRMF3TG/K pinout, M24C64-DRMF3TG/K application, or M24C64-DRMF3TG/K equivalent, key selection criteria include automotive temperature compliance, I²C bus speed support (100/400 kHz/1 MHz), write endurance at 125 °C, identification page lockability, and TSSOP8 package compatibility with PCB layout constraints.
Technical Context
The M24C64-DRMF3TG/K implements a true EEPROM array organized as 256 pages × 32 bytes, with embedded Error Correction Code logic enhancing data integrity across temperature extremes. It supports full I²C protocol compliance including Start/Stop conditions, ACK/NACK handshaking, and multi-master arbitration.
Its dual-addressing scheme separates main memory access (device select code 1010b) from identification page access (1011b), enabling secure read of ST-manufactured ID codes (0x20, 0xE0, 0x0D) and user-programmable parameters. Write Control (WC) input provides hardware-level write inhibition independent of software commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 64 Kbit (8 Kbyte), byte-alterable storage for firmware patches, calibration data, and VIN logs in ECUs. |
| I²C clock frequency | Up to 1 MHz - enables fast parameter updates during vehicle diagnostics without bus contention delays. |
| Page size | 32 bytes - defines maximum atomic write burst; crossing page boundaries requires separate write cycles. |
| Operating voltage | 1.7 V to 5.5 V - supports direct connection to 3.3 V or 5 V microcontroller I/O rails without level shifters. |
| Temperature range | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and transmission control unit deployment. |
| Write endurance | 600 k cycles at 125 °C - ensures reliable reprogramming over full vehicle lifetime in high-heat environments. |
| Data retention | 50 years at 125 °C - guarantees long-term integrity of safety-critical configuration data without refresh. |
| ESD protection | 4000 V HBM - withstands handling and assembly electrostatic discharge in automotive manufacturing lines. |
Pinout & Package
Package: RoHS-compliant and halogen-free TSSOP8 (DW), 3 mm × 4.4 mm, 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 slave address (b2–b0); tied to VCC/VSS to configure one of eight devices on shared I²C bus. |
| 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-triggered for noise immunity on noisy automotive harnesses. |
| WC | Write Control input | Hardware write lock: high = entire memory array write-inhibited; low/floating = write enabled. |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to minimize ground bounce in ECU PCBs. |
| VCC | Supply voltage | Power rail for EEPROM core and interface logic; operates down to 1.7 V, supporting low-power sleep modes. |
Key Features
| Feature | Design Value |
|---|---|
| Identification page (32 byte) | Dedicated area storing ST's manufacturer ID (0x20, 0xE0, 0x0D) and user parameters, lockable permanently to prevent tampering. |
| Schmitt trigger inputs | On SCL and SDA pins - suppresses bus noise-induced false clock/data transitions in high-EMI engine compartments. |
| Short write cycle time | ≤4 ms for both byte and page writes - minimizes bus occupation time and improves real-time response in safety-critical logging. |
| Extended voltage range | 1.7 V to 5.5 V operation - eliminates need for dedicated voltage regulators when interfacing with diverse MCU families. |
| ECOPACK2® packaging | Halogen-free, RoHS-compliant TSSOP8 - meets automotive environmental compliance requirements and solder-reflow profiles. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing adaptive fuel trim values, misfire counters, and diagnostic trouble codes (DTCs) that persist across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed 50-year data retention at 125 °C under hood ambient. Use Value: Enables regulatory-compliant OBD-II logging without battery-backed SRAM, reducing BOM cost and failure points. |
Use Scenario: Saving camera calibration offsets, radar sensor alignment data, and lane-departure thresholds during vehicle assembly and service. IC Role / Device Role / Timing Role: Secure, write-protected configuration storage accessible only after authentication handshake via identification page. Use Value: Prevents unauthorized modification of ADAS behavior while allowing OEMs to update parameters in-field using locked ID-page verification. |
| Transmission Control Module (TCM) | Body Control Module (BCM) |
Use Scenario: Recording gear-shifting history, clutch wear metrics, and torque converter lock-up patterns for predictive maintenance. IC Role / Device Role / Timing Role: High-endurance EEPROM (600 k cycles at 125 °C) co-located with TCM MCU for frequent runtime updates. Use Value: Eliminates premature wear-out failures seen with standard EEPROMs in thermally stressed transmission environments. |
Use Scenario: Holding door module configuration (mirror fold/unfold settings, seat position memory, lighting profiles) tied to vehicle VIN. IC Role / Device Role / Timing Role: I²C slave device with 1 MHz support enabling rapid personalization sync during vehicle startup sequence. Use Value: Reduces boot-time latency versus slower 100 kHz EEPROMs, improving perceived responsiveness of comfort features. |
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 | 64 Kbit I²C EEPROM, AEC-Q100 Grade 2 (-40 °C to 105 °C), max 1 MHz, no identification page. | Limited to under-dash modules; lacks ID page for secure VIN binding or anti-counterfeit use. | Select when Grade 1 thermal margin is unnecessary and ID page functionality is unused. |
| BR24G64FJ-3GE2 | 64 Kbit I²C EEPROM, AEC-Q100 Grade 1, 1.7–5.5 V, but only 400 kHz max clock; no WC pin. | Requires longer write times and lacks hardware write lock - increases risk of corruption during power interruption. | Prefer only if board layout prohibits TSSOP8 or existing firmware assumes no WC control logic. |
Compared with AT24C64D-SSHM-T and BR24G64FJ-3GE2, the M24C64-DRMF3TG/K uniquely combines Grade 1 temperature rating, 1 MHz speed, hardware write lock (WC), and programmable/lockable identification page - making it the only choice for safety-critical, high-reliability automotive storage where secure parameter binding and fast field updates are mandatory.
Availability
M24C64-DRMF3TG/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 automotive production lifecycles.
Supply support for M24C64-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-grade analog, power, and microcontroller solutions with deep expertise in EEPROM reliability and AEC-Q100 qualification.
The M24C64-A125 product line targets automotive subsystems demanding extended temperature operation, high write endurance, and secure configuration storage - designed specifically for ECU, TCM, and ADAS module integration.
FAQ
What is the function of the WC pin on M24C64-DRMF3TG/K?
The WC (Write Control) pin is a hardware-level write inhibit input. When driven high, it disables all write operations to the entire memory array-including main memory and identification page-regardless of I²C commands. This prevents accidental overwrites during power transients or firmware errors. WC must be pulled low or left floating to enable writes.
Does M24C64-DRMF3TG/K support standard I²C addressing modes?
Yes, it supports standard 7-bit I²C addressing with configurable slave address via E2/E1/E0 pins. Two device select codes are recognized: 1010b for main memory access and 1011b for identification page access. Up to eight devices can share one I²C bus by assigning unique E2–E0 combinations, and the device responds only when its address matches.
How is the identification page used and secured?
The 32-byte identification page contains ST's fixed manufacturer ID (bytes 0–2: 0x20, 0xE0, 0x0D) and 29 bytes for user data. It can be written and read like main memory, then permanently locked in read-only mode using the Lock Identification Page instruction. Once locked, no further writes are possible-even with WC low-ensuring immutable device identity and calibrated parameters.
What package variant does M24C64-DRMF3TG/K use?
M24C64-DRMF3TG/K uses the TSSOP8 (DW) package: 3 mm × 4.4 mm body, 0.65 mm lead pitch, 8-lead thin shrink small outline. It is RoHS-compliant and halogen-free (ECOPACK2®), with pin 1 marked by a dot or bevelled corner. This package offers superior thermal performance and board space efficiency versus SO8N in dense automotive PCB layouts.
M24C64-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:
- 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-MLP (2x3)
M24C64-DRMF3TG/K FAQ
1.How can I place an order for M24C64-DRMF3TG/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C64-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 M24C64-DRMF3TG/K reliable?
The price and inventory of M24C64-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 M24C64-DRMF3TG/K is usually 5 days.
3.What payment methods are accepted for M24C64-DRMF3TG/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C64-DRMF3TG/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C64-DRMF3TG/K?
M24C64-DRMF3TG/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C64-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 M24C64-DRMF3TG/K?
For technical support, including M24C64-DRMF3TG/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C64-DRMF3TG/K requirements.
6.How does Aetrix verify that M24C64-DRMF3TG/K is sourced from the original manufacturer or authorized distributors?
All M24C64-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 M24C64-DRMF3TG/K meets industry standards.
7.What is the process for return or replacement of M24C64-DRMF3TG/K?
All M24C64-DRMF3TG/K units undergo pre-shipment inspection (PSI). If there is an issue with M24C64-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 M24C64-DRMF3TG/K part is unused and in its original packaging.
Return procedure for M24C64-DRMF3TG/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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