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STMicroelectronics M24C16-WMN6TP
- Part No.:
- M24C16-WMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C16-WMN6TP.pdf
- Description:
- IC EEPROM 16KBIT I2C 400KHZ 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:15,579
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Product details
Overview
M24C16-WMN6TP from STMicroelectronics is a 16-Kbit I²C-compatible serial EEPROM organized as 2 K × 8 bits, operating from 2.5 V to 5.5 V supply and supporting up to 400 kHz clock frequency. It features 16-byte page write capability, >4 million write cycles, 200-year data retention, and hardware write protection via the WC pin. It is used in industrial control modules for parameter storage, calibration data backup, and firmware configuration persistence.
For engineers reviewing the M24C16-WMN6TP datasheet, M24C16-WMN6TP pinout, M24C16-WMN6TP application, or M24C16-WMN6TP equivalent, key selection considerations include supply voltage range (2.5–5.5 V), I²C timing compliance at 400 kHz, TSSOP8 ECOPACK2 packaging, WC-enabled hardware write protection, and guaranteed operation from –40 °C to +85 °C.
Technical Context
The M24C16-WMN6TP implements a standard I²C slave interface with open-drain SDA and input-only SCL, requiring external pull-up resistors. Its internal architecture includes a high-voltage generator for EEPROM programming, page latches for burst writes, and a power-on reset (POR) circuit that prevents spurious writes during power ramp-up.
Write control (WC) is an active-high hardware lock that disables all write operations-including byte and page writes-when asserted, while still allowing read access and device address acknowledgment. Memory organization supports both random and sequential read modes, with automatic address counter roll-over at boundary addresses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2 K × 8), sufficient for storing bootloader config, sensor calibration tables, or device ID data |
| I²C clock max | 400 kHz, compatible with standard/fast-mode I²C masters without timing margin compromise |
| Supply voltage | 2.5 V to 5.5 V - supports legacy 5 V microcontrollers and modern 3.3 V systems without level shifting |
| Page write size | 16 bytes - enables efficient bulk updates (e.g., full register bank save) within single 5 ms write cycle |
| Write endurance | >4 million cycles - suitable for logging applications with frequent parameter updates (e.g., energy meter pulse counters) |
| Data retention | >200 years at 55 °C - ensures long-term reliability in unattended infrastructure equipment |
| Operating temp | –40 °C to +85 °C - qualified for industrial automation, HVAC controllers, and smart metering environments |
Pinout & Package
Package: TSSOP8 (ECOPACK2), 169 mil width, 0.65 mm pitch, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDA) | Serial Data I/O | Open-drain bidirectional bus line; requires external pull-up; shares wire-OR topology with other I²C slaves |
| 2 (VSS) | Ground Reference | Primary return path for VCC; must be low-impedance and decoupled near package pins |
| 3 (SCL) | Serial Clock Input | Master-generated clock; edge-triggered sampling of SDA; no internal pull-up |
| 4 (NC) | No Connect | Internally unconnected; must remain floating or grounded per PCB layout best practice |
| 5 (NC) | No Connect | Internally unconnected; no electrical function; avoid routing signals beneath |
| 6 (NC) | No Connect | Internally unconnected; not bonded; electrically isolated from die |
| 7 (VCC) | Supply Voltage | 2.5–5.5 V DC input; requires local 10–100 nF ceramic decoupling capacitor |
| 8 (WC) | Write Control | Active-high hardware lock; disables all writes when high; float or low to enable writes |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin provides deterministic, glitch-immune memory lock independent of software state |
| ECOPACK2 packaging | TSSOP8 meets RoHS, halogen-free, and JEDEC J-STD-020D reflow standards |
| Enhanced ESD/latch-up immunity | ±3 kV HBM ESD rating and robust latch-up immunity per AEC-Q100-002 |
| Polling-ready ACK protocol | Supports write-complete detection via repeated Start + device address without timeout delays |
| Power-on reset (POR) | Prevents inadvertent writes during VCC ramp-up; guarantees known initial state before first access |
Applications
| Industrial PLC Configuration Storage | Smart Energy Meter Calibration Backup |
|---|---|
Use Scenario: Storing user-defined I/O mapping, PID tuning parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register bank accessed via I²C during boot and runtime reconfiguration. Use Value: Enables field-upgradable settings without firmware reflashing; survives 10+ years of industrial deployment with >4M write cycles. | Use Scenario: Retaining metrology calibration coefficients, tariff schedules, and tamper-event logs in ANSI C12.20-compliant meters. IC Role / Device Role / Timing Role: Secure, write-protected data vault synchronized with metrology IC via I²C after each calibration cycle. Use Value: WC pin prevents accidental overwrites during power transients; 200-year retention ensures lifetime data integrity across meter lifespan. |
| Medical Device Parameter Archiving | Automotive Body Control Module Settings |
Use Scenario: Saving patient-specific therapy profiles, usage history, and safety limits in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Fail-safe configuration store accessed only during safe boot states; write-protected except during authorized service mode. Use Value: WC-controlled write gating satisfies IEC 62304 Class B software safety requirements for critical data integrity. | Use Scenario: Storing seat/mirror position presets, lighting profiles, and door lock behavior in BCMs across vehicle production variants. IC Role / Device Role / Timing Role: Factory-programmed and dealer-updatable settings storage interfaced to MCU via I²C during ignition-on initialization. Use Value: TSSOP8 footprint allows compact placement near MCU; –40 °C to +85 °C rating matches under-hood BCM thermal envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T (Microchip) | Same 16 Kbit size, 1.7–5.5 V supply, but lacks dedicated WC pin; uses software write protection only | No hardware-level write lock; unsuitable where power-loss during write could corrupt critical config | Select only if system-level software control suffices and WC functionality is not required |
| BR24G16NUX-10 (ROHM) | 16 Kbit, 1.7–5.5 V, includes WC pin, but rated only to +105 °C (not –40 °C); lower ESD rating (2 kV HBM) | Limited industrial cold-start capability; reduced robustness in noisy factory-floor environments | Acceptable for commercial-grade applications above 0 °C ambient; not recommended for extended temperature range use |
Compared with AT24C16D-SSHM-T and BR24G16NUX-10, the M24C16-WMN6TP uniquely combines hardware write protection, full –40 °C to +85 °C qualification, and ECOPACK2 environmental compliance - making it the only choice for safety-critical or wide-temperature industrial deployments requiring deterministic memory lock.
Availability
M24C16-WMN6TP is available at Aetrix Electronics and suitable for industrial PLCs, smart energy meters, medical infusion devices, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for M24C16-WMN6TP 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, designing and manufacturing microcontrollers, power management ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
The M24Cxx series targets cost-sensitive, high-reliability embedded systems needing standardized I²C EEPROM with hardware security, extended temperature operation, and eco-friendly packaging.
FAQ
What is the function of the WC pin on M24C16-WMN6TP?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including byte and page writes-when driven high. When low or floating, writes are enabled. Reads remain fully functional regardless of WC state, and device address acknowledgment continues, enabling safe status polling during locked conditions.
Can M24C16-WMN6TP operate at 1.8 V supply?
No. The M24C16-WMN6TP variant is specified for 2.5 V to 5.5 V operation only. For 1.8 V compatibility, STMicroelectronics offers the M24C16-R variant (e.g., M24C16-RMN6TP), which shares identical pinout and functionality but extends VCC(min) to 1.8 V.
Is the TSSOP8 package of M24C16-WMN6TP lead-free and RoHS-compliant?
Yes. The M24C16-WMN6TP in TSSOP8 uses STMicroelectronics' ECOPACK2 packaging, which is fully RoHS-compliant, halogen-free, and qualified to JEDEC J-STD-020D reflow standards - including Pb-free solder compatibility and moisture sensitivity level 1 (MSL1).
How does the M24C16-WMN6TP handle power loss during a write cycle?
Its integrated power-on reset (POR) circuit holds the device in standby until VCC reaches a stable operating threshold. If VCC drops below specification during a write, the internal write cycle aborts and the memory remains unaltered - no partial writes or corruption occur. Data integrity is preserved by design.
M24C16-WMN6TP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
M24C16-WMN6TP FAQ
1.How can I place an order for M24C16-WMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C16-WMN6TP 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 M24C16-WMN6TP reliable?
The price and inventory of M24C16-WMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C16-WMN6TP is usually 5 days.
3.What payment methods are accepted for M24C16-WMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C16-WMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C16-WMN6TP?
M24C16-WMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C16-WMN6TP 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 M24C16-WMN6TP?
For technical support, including M24C16-WMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C16-WMN6TP requirements.
6.How does Aetrix verify that M24C16-WMN6TP is sourced from the original manufacturer or authorized distributors?
All M24C16-WMN6TP 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 M24C16-WMN6TP meets industry standards.
7.What is the process for return or replacement of M24C16-WMN6TP?
All M24C16-WMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C16-WMN6TP, 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 M24C16-WMN6TP part is unused and in its original packaging.
Return procedure for M24C16-WMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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