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STMicroelectronics M24512-RMB6TG
- Part No.:
- M24512-RMB6TG
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
M24512-RMB6TG.pdf
- Description:
- IC EEPROM 512KBIT I2C 8UFDFPN
- Quantity:
- Payment:
- Shipping:
Inventory:2,530
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Product details
Overview
M24512-RMB6TG from STMicroelectronics is a 512 Kbit (64 Kbyte) I²C-compatible serial EEPROM with three Chip Enable inputs (E0, E1, E2), 1.8–5.5 V single-supply operation, and 128-byte page write capability completing in ≤5 ms. It supports I²C Fast-mode Plus (1 MHz), Fast mode (400 kHz), and Standard mode (100 kHz), and is used for nonvolatile parameter storage in industrial control modules, sensor calibration data retention, and firmware configuration in embedded microcontroller systems.
For engineers reviewing the M24512-RMB6TG datasheet, M24512-RMB6TG pinout, M24512-RMB6TG application, or M24512-RMB6TG equivalent, key selection considerations include its triple CE addressability for multi-device bus topology, WC pin-based hardware write protection, SO8 (MW) 208-mil ECOPACK2® package, and guaranteed >1 million write cycles with >40-year data retention at +25°C.
Technical Context
The M24512-RMB6TG operates as a slave-only device on the I²C bus, using Start/Stop conditions and ACK/NACK handshaking per standard protocol. Its memory array is organized as 64 K × 8 bits, with addressing resolved via a 7-bit device select code where bits b3–b1 map directly to E2/E1/E0 logic levels.
It implements Schmitt-trigger inputs and input noise filtering for robust bus communication, and supports both random and sequential read modes. Write operations are inhibited when the WC pin is high, and the device includes internal power-on reset (POR) to prevent spurious writes during power ramp-up or down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 512 Kbit (64 Kbytes) EEPROM - sufficient for storing full device configuration, calibration tables, and boot parameters in resource-constrained systems. |
| I²C speed support | Up to 1 MHz (Fast-mode Plus) - enables high-throughput configuration updates without requiring bus arbitration redesign. |
| Page size | 128 bytes - matches typical MCU flash sector sizes for efficient bulk parameter writes and reduces I²C transaction overhead. |
| Write time | ≤5 ms per byte or page - allows deterministic timing budgeting in real-time firmware routines without polling delays exceeding 6 ms. |
| Supply voltage | 1.8 V to 5.5 V - interoperable with 1.8 V logic families and legacy 5 V systems without level-shifting circuitry. |
| Data retention | >40 years at +25°C - ensures long-term reliability in unattended infrastructure equipment and medical devices. |
| Endurance | >1 million write cycles - supports frequent field-updatable calibration or logging use cases over product lifetime. |
Pinout & Package
Package: SO8 (MW), 8-lead plastic small outline, 208 mils body width, ECOPACK2® RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E0, E1, E2 | Chip Enable address inputs | Set 3-bit device select code (b3–b1) to enable up to 8 identical EEPROMs on one I²C bus without address conflict. |
| SDA | Serial Data bidirectional line | Open-drain I/O requiring external pull-up; shares bus with other I²C slaves and supports wire-OR logic. |
| SCL | Serial Clock input | Master-synchronized clock input; accepts 100 kHz–1 MHz edges with internal noise filtering for EMI resilience. |
| WC | Write Control input | Hardware lock: high = full memory array write-inhibited; low = write enabled - eliminates need for software-based write-protection flags. |
| VCC | Supply voltage | 1.8–5.5 V single rail; decoupling capacitor (10–100 nF) required near pins to suppress switching noise during write cycles. |
| VSS | Ground reference | Common return path for all I/O and internal circuitry; must be low-impedance to maintain signal integrity during ACK/NACK transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Triple Chip Enable addressing | Enables 8 independent M24512-RMB6TG devices on a shared I²C bus without external multiplexers or address jumpers. |
| Hardware write protection (WC pin) | Prevents accidental overwrites during power transients or firmware bugs - no software register access required to secure memory. |
| Schmitt-trigger & noise-filtered inputs | Rejects <100 ns glitches on SCL/SDA, allowing reliable operation in electrically noisy industrial environments (e.g., motor drives, PLCs). |
| ECOPACK2® packaging | Meets RoHS and halogen-free requirements for global compliance; SO8 (MW) footprint is drop-in compatible with legacy board layouts. |
| Internal power-on reset (POR) | Guarantees device remains unresponsive until VCC stabilizes within spec, eliminating startup corruption risk in battery-backed or brown-out scenarios. |
Applications
| Industrial Sensor Node | Medical Device Calibration |
|---|---|
Use Scenario: Storing temperature/humidity offset coefficients and linearization parameters in a wireless environmental sensor node operating on coin-cell power. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at boot and during field recalibration; I²C interface synchronized to MCU's 400 kHz peripheral clock. Use Value: Enables field-upgradable calibration without firmware reflash; 1.8 V operation extends battery life; >40-year retention avoids recalibration service intervals. | Use Scenario: Holding patient-specific therapy parameters and device serial/lot traceability data in an infusion pump with regulatory audit requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter vault; WC pin tied high during normal operation to prevent runtime corruption. Use Value: Hardware-enforced write lock satisfies IEC 62304 data integrity requirements; ECOPACK2® ensures material compliance for Class II medical certification. |
| Automotive Body Control Module | Smart Energy Meter |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and fault log history in a 12 V automotive BCM with wide-input DC-DC regulation. IC Role / Device Role / Timing Role: Robust EEPROM interfaced to 5 V-tolerant MCU GPIO; withstands load-dump and cold-crank voltage excursions via internal POR and latch-up protection. Use Value: >1 million endurance supports daily user profile changes over 10+ year vehicle lifetime; enhanced ESD/latch-up rating meets ISO 10605 and AEC-Q100 stress test requirements. | Use Scenario: Recording tariff schedules, meter firmware version, and tamper-event timestamps in a DIN-rail mounted electricity meter deployed for 15+ years. IC Role / Device Role / Timing Role: Long-life data logger with periodic writes triggered by billing cycle rollover; operates from isolated 3.3 V supply derived from mains. Use Value: >40-year data retention eliminates need for battery backup or supercapacitor; SO8 (MW) package supports automated optical inspection (AOI) in high-volume meter production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C512-SSHL-T (Microchip) | Same 512 Kbit density and I²C interface, but only two CE inputs (E0, E1); no WC pin; max 400 kHz clock. | Limited to 4 devices per bus; lacks hardware write lock - requires software-managed protection schemes. | Select if bus count ≤4 and write protection can be implemented in firmware; avoid where WC-level security is mandated. |
| BR24G512FJ-3GE2 (ROHM) | 512 Kbit, 1.7–5.5 V, supports 1 MHz I²C, but uses single CE pin and no WC; offers built-in error correction (ECC). | No multi-device address flexibility; ECC improves reliability but adds latency; no hardware lock for full-array protection. | Choose where ECC is prioritized over address scalability and hardware write disable; not suitable for systems requiring WC-driven fail-safe locking. |
Compared with AT24C512-SSHL-T and BR24G512FJ-3GE2, the M24512-RMB6TG uniquely combines triple CE addressing, dedicated WC pin, and 1 MHz I²C support - making it optimal for dense, safety-critical, or high-throughput embedded systems requiring deterministic hardware-level memory protection and bus scalability.
Availability
M24512-RMB6TG is available at Aetrix Electronics and suitable for industrial sensor nodes, medical device calibration storage, and automotive body control modules requiring stable component supply across extended product lifecycles.
Supply support for M24512-RMB6TG 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 microcontrollers, power management, and memory solutions for industrial, automotive, and consumer applications.
The M24512-RMB6TG belongs to ST's M24 serial EEPROM product line, designed specifically for robust, low-power, multi-device I²C systems requiring hardware-configurable addressing and fail-safe write protection in harsh environments.
FAQ
What is the function of the WC pin on the M24512-RMB6TG?
The WC (Write Control) pin is a hardware-level write inhibit input. When driven high, it disables all write operations to the entire 64 Kbyte memory array - including byte, page, and identification page writes - regardless of I²C command sequence. This provides deterministic, glitch-immune protection against unintended writes during power transitions or firmware faults. The pin is internally pulled low when left unconnected, enabling normal write functionality.
How many devices can share the same I²C bus using M24512-RMB6TG?
Up to eight M24512-RMB6TG devices can operate concurrently on a single I²C bus. This is achieved through independent configuration of the three Chip Enable inputs (E0, E1, E2), which set the three least-significant bits of the 7-bit I²C device address. Each unique E2:E1:E0 combination yields a distinct device select code (1010xxxR/W), enabling individual addressing without external multiplexers or software address remapping.
Does M24512-RMB6TG support 1.8 V operation with full I²C speed compliance?
Yes. The M24512-RMB6TG is fully specified for 1.8 V to 5.5 V operation and maintains full I²C timing compliance - including 1 MHz Fast-mode Plus - across this entire voltage range. Electrical characteristics such as tLOW, tHIGH, and setup/hold times meet I²C specification limits at 1.8 V, verified per ST's DC and AC parameter tables (Doc ID 16459 Rev 21, Tables 14–15). No derating or reduced speed is required at minimum supply.
Is the SO8 (MW) package of M24512-RMB6TG compatible with standard SOIC-8 footprints?
Yes. The SO8 (MW) package is a standard 8-lead plastic small outline with 208 mils (5.28 mm) body width and 1.27 mm lead pitch, fully compatible with IPC-7351B SOIC-8 land patterns. Its ECOPACK2® construction retains mechanical and thermal properties identical to legacy SOIC-8, enabling drop-in replacement in existing designs without PCB rework - provided the board layout accommodates the 208-mil width (not the narrower 150-mil SO8N variant).
M24512-RMB6TG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 10ms
- Access Time:
- 500 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UFDFPN (2x3)
M24512-RMB6TG FAQ
1.How can I place an order for M24512-RMB6TG through Aetrix?
Please submit a Request for Quotation (RFQ) for M24512-RMB6TG 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-RMB6TG reliable?
The price and inventory of M24512-RMB6TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24512-RMB6TG is usually 5 days.
3.What payment methods are accepted for M24512-RMB6TG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24512-RMB6TG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24512-RMB6TG?
M24512-RMB6TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24512-RMB6TG 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-RMB6TG?
For technical support, including M24512-RMB6TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24512-RMB6TG requirements.
6.How does Aetrix verify that M24512-RMB6TG is sourced from the original manufacturer or authorized distributors?
All M24512-RMB6TG 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-RMB6TG meets industry standards.
7.What is the process for return or replacement of M24512-RMB6TG?
All M24512-RMB6TG units undergo pre-shipment inspection (PSI). If there is an issue with M24512-RMB6TG, 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-RMB6TG part is unused and in its original packaging.
Return procedure for M24512-RMB6TG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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