STMicroelectronics M24C08-FMN6TP
- Part No.:
- M24C08-FMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C08-FMN6TP.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:20,816
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Product details
Overview
M24C08-FMN6TP from STMicroelectronics is an 8-Kbit I²C-compatible EEPROM organized as 1 K × 8 bits, operating from 1.7 V to 5.5 V across –40 °C to +85 °C. It supports 400 kHz and 100 kHz I²C bus modes, features 16-byte page write capability with ≤5 ms write time, and includes hardware write protection via WC pin. It is used in industrial control modules for parameter storage and calibration data retention.
For engineers reviewing the M24C08-FMN6TP datasheet, M24C08-FMN6TP pinout, M24C08-FMN6TP application, or M24C08-FMN6TP equivalent, this page delivers verified electrical specs, package-specific terminal mapping, real-world use cases, and validated alternative parts - all grounded in STMicroelectronics' DS9362 Rev 7 documentation.
Technical Context
The M24C08-FMN6TP implements a standard I²C slave protocol with start/stop detection, ACK/NACK handshaking, and address decoding logic supporting device select code 1010bxx0 (E2 = 0 in TSSOP8/SO8N/UFDFPN8; fixed 0 in UFDFPN5/WLCSP). Its internal architecture includes a page latch, X/Y decoders, sense amplifiers, and HV generator for EEPROM programming.
It operates exclusively as a slave device, requiring external bus master control. Write operations are gated by WC input state and trigger internal tW cycles (≤5 ms); read operations support random, current-address, and sequential modes without WC dependency. The device integrates power-on-reset (POR) and enhanced ESD/latch-up protection per ECOPACK2 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 8 Kbit (1024 × 8), enabling storage of firmware configuration, sensor calibration tables, or device ID data |
| I²C clock frequency | Up to 400 kHz - supports fast parameter updates in real-time embedded systems |
| Supply voltage range | 1.7 V to 5.5 V (full temp range); enables interoperability with 1.8 V logic and legacy 5 V systems |
| Write cycle endurance | 4 million cycles at 25 °C - suitable for high-frequency logging applications like energy metering |
| Data retention | 200 years at 55 °C - ensures long-term reliability in unattended infrastructure equipment |
| Page size | 16 bytes - optimizes burst writes while minimizing bus occupancy and host CPU overhead |
| Operating temperature | –40 °C to +85 °C - certified for industrial automation, automotive body electronics, and outdoor IoT nodes |
Pinout & Package
Package: TSSOP8 (DW), 169 mil width, RoHS-compliant and halogen-free (ECOPACK2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SDA | Serial Data I/O | Open-drain bidirectional bus line; requires external pull-up; shares bus with other I²C slaves |
| 2 - VSS | Ground | Reference node for all signals and VCC decoupling; must be low-impedance path to system GND |
| 3 - SCL | Serial Clock Input | Master-generated clock synchronizing all data transfers; edge-triggered sampling on rising edge |
| 4 - WC | Write Control Input | Active-high hardware lock: when high, disables all write operations including byte/page writes |
| 5 - NC | No Connect | Not bonded in TSSOP8; must remain unconnected to avoid unintended coupling or noise injection |
| 6 - NC | No Connect | Not bonded in TSSOP8; floating or tied to GND/VCC has no functional effect |
| 7 - VCC | Supply Voltage | Power rail for core logic and EEPROM array; requires 10–100 nF ceramic decoupling capacitor near pins |
| 8 - E2 | Chip Enable Input | Configures b3 of device address (1010bxx0); tied to VSS for default 0x50 address; unused in DFN5/WLCSP |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin disables all writes when driven high - prevents corruption during brown-out or firmware update |
| Extended low-voltage operation | 1.7 V minimum supply enables direct interface with 1.8 V microcontrollers without level shifters |
| Roll-over addressing | Sequential reads wrap from address 3FFh to 00h (except in DFN5 package) - simplifies circular buffer implementation |
| Polling-ready ACK response | Bus master can detect write completion via ACK/NACK polling - eliminates fixed delay timing in host firmware |
| ECOPACK2 packaging | TSSOP8 meets RoHS and halogen-free requirements for industrial and medical end-equipment compliance |
Applications
| Industrial PLC Configuration Storage | Smart Meter Calibration Data Retention |
|---|---|
|
Use Scenario: Storing I/O mapping, scaling factors, and communication parameters in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable settings without firmware reflashing; retains data through 10+ year deployments. |
Use Scenario: Holding metrology calibration coefficients, tariff tables, and tamper-event logs in electricity/water meters. IC Role / Device Role / Timing Role: Secure, write-protected data vault synchronized with metrology ICs over I²C at 100 kHz. Use Value: Guarantees 200-year data integrity under thermal stress and battery-backed operation. |
| Automotive Body Control Module (BCM) | IoT Edge Sensor Node Settings |
|
Use Scenario: Saving seat/mirror position presets, lighting profiles, and diagnostic fault codes in BCMs. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced to 3.3 V MCU over I²C; accessed only during wake-up or key-off events. Use Value: Operates reliably down to 1.7 V during cold-cranking; withstands 4M write cycles for lifetime diagnostics. |
Use Scenario: Storing OTA update credentials, sensor fusion coefficients, and network keys in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Persistent settings store accessed during initialization; WC pin hard-locked after provisioning. Use Value: Eliminates need for external write-protection logic; reduces BOM count and PCB area in space-constrained nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C08D-SSHM-T (Microchip) | Same 8-Kbit capacity, 1.7–5.5 V supply, but only 1 million write cycles and 100-year retention at 85 °C | Lacks WC pin; uses software write protection only - less robust against power glitch-induced corruption | Select when cost sensitivity outweighs long-term reliability requirements in consumer-grade devices |
| BR24G08NUX-10 (ROHM) | 1.6–5.5 V operation, 4 million cycles, but 100-year retention at 105 °C - lower long-term data integrity margin | Includes WP pin functionally identical to WC, but pinout differs (WP on pin 7 vs WC on pin 4 in TSSOP8) | Choose for higher-temp environments where 105 °C operation is required, accepting reduced retention guarantee |
Compared with AT24C08D-SSHM-T and BR24G08NUX-10, the M24C08-FMN6TP uniquely combines 200-year data retention at 55 °C, hardware WC-based write lock, and full-pin TSSOP8 compatibility - making it optimal for safety-critical or long-lifecycle industrial deployments.
Availability
M24C08-FMN6TP is available at Aetrix Electronics and suitable for industrial PLCs, smart meters, automotive body control modules, and IoT edge sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for M24C08-FMN6TP 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, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
The M24C08-FMN6TP belongs to ST's serial EEPROM product line, engineered specifically for robust, low-voltage, long-life nonvolatile storage in resource-constrained embedded systems with stringent reliability demands.
FAQ
What is the maximum I²C clock frequency supported by M24C08-FMN6TP?
The M24C08-FMN6TP supports up to 400 kHz I²C clock frequency under all valid operating conditions (1.7–5.5 V, –40 °C to +85 °C), as specified in Table 8 of DS9362 Rev 7. This allows faster parameter loading than standard 100 kHz mode while maintaining signal integrity on typical PCB traces with ≤100 pF bus capacitance.
How does the WC pin affect write operations?
When the WC pin is driven high, all write operations (byte and page) are disabled - the device acknowledges device select and address bytes but returns NACK on data bytes. When WC is low or floating, writes proceed normally. This hardware lock prevents accidental overwrites during power transitions or firmware errors.
Is the M24C08-FMN6TP pin-compatible with other M24C08 variants in TSSOP8?
Yes - the M24C08-FMN6TP shares identical TSSOP8 (DW) pinout and footprint with M24C08-WMN6TP and M24C08-RMN6TP. Only the supply voltage range differs: F-version supports 1.7–5.5 V, R-version 1.8–5.5 V, W-version 2.5–5.5 V. No layout change is needed for voltage-range migration.
Does the device support sequential read with automatic address increment?
Yes - after a random or current-address read, the device supports sequential read: each acknowledged byte causes the internal address counter to increment, outputting consecutive memory locations. At address 3FFh, it rolls over to 00h (except in DFN5 package, where behavior is undefined beyond 3FFh).
M24C08-FMN6TP 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:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
M24C08-FMN6TP FAQ
1.How can I place an order for M24C08-FMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C08-FMN6TP 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 M24C08-FMN6TP reliable?
The price and inventory of M24C08-FMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C08-FMN6TP is usually 5 days.
3.What payment methods are accepted for M24C08-FMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C08-FMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C08-FMN6TP?
M24C08-FMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C08-FMN6TP 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 M24C08-FMN6TP?
For technical support, including M24C08-FMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C08-FMN6TP requirements.
6.How does Aetrix verify that M24C08-FMN6TP is sourced from the original manufacturer or authorized distributors?
All M24C08-FMN6TP 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 M24C08-FMN6TP meets industry standards.
7.What is the process for return or replacement of M24C08-FMN6TP?
All M24C08-FMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C08-FMN6TP, 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 M24C08-FMN6TP part is unused and in its original packaging.
Return procedure for M24C08-FMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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