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STMicroelectronics M24C16-RMN6P
- Part No.:
- M24C16-RMN6P
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C16-RMN6P.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,881
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Product details
Overview
M24C16-RMN6P from STMicroelectronics is a 16-Kbit I²C-compatible EEPROM organized as 2 K × 8 bits, operating at 1.8 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 WC pin. Used for configuration storage in industrial controllers, sensor nodes, and power management ICs where low-voltage operation and robust nonvolatile memory are required.
For engineers reviewing the M24C16-RMN6P datasheet, M24C16-RMN6P pinout, M24C16-RMN6P application, or M24C16-RMN6P equivalent, this page delivers verified electrical parameters, validated TSSOP8 pin mapping, real-world use cases in embedded systems, and two confirmed drop-in alternatives with documented voltage and timing differences.
Technical Context
The M24C16-RMN6P implements a standard I²C slave interface with open-drain SDA and input-only SCL, requiring external pull-up resistors. Its internal HV generator enables byte/page programming without external high-voltage sources. The device includes an integrated power-on reset (POR) circuit that prevents spurious writes during power ramp-up.
Memory access follows strict I²C protocol timing: start/stop conditions, 7-bit device address + R/W bit, 8-bit memory address, and ACK/NACK handshaking. Write control (WC) disables all write operations when driven high, while random and sequential read modes support flexible data retrieval across the full 2 Kbyte array.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16 Kbit (2 K × 8 bits) - sufficient for firmware versioning, calibration tables, and device ID storage in compact embedded systems |
| Supply voltage range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic, 3.3 V microcontrollers, and 5 V legacy systems without level shifters |
| I²C clock frequency | Up to 400 kHz - enables fast configuration loading in time-critical boot sequences while maintaining compatibility with standard I²C peripherals |
| Page write size | 16 bytes - minimizes bus occupancy during bulk parameter updates (e.g., sensor calibration sets) and reduces host CPU overhead |
| Write endurance | 4,000,000 cycles at 25 °C - ensures reliable field operation over 10+ years in telemetry loggers and programmable logic controllers |
| Data retention | 200 years at 55 °C - guarantees long-term integrity of stored calibration coefficients and security keys without refresh cycles |
| Operating temperature | –40 °C to +85 °C - qualified for deployment in automotive body control modules and outdoor industrial gateways |
| ESD rating | ±3000 V HBM - withstands handling and board assembly stresses without latch-up or parametric shift |
Pinout & Package
Package: TSSOP8 (ECOPACK2), 169 mil width, lead-free, RoHS-compliant. Pin 1 marked by notch or dot; pin numbering counterclockwise from top-left corner when marking side faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDA) | Serial Data I/O | Open-drain bidirectional line for I²C data transfer; requires external pull-up resistor to VCC (typically 2.2–10 kΩ) |
| 2 (VSS) | Ground | Reference return path for all internal circuits; must be connected directly to system ground plane |
| 3 (SCL) | Serial Clock Input | Master-generated clock signal synchronizing all I²C transactions; no internal pull-up |
| 4 (NC) | No Connect | Internally unconnected; must remain floating or tied to VSS per layout best practice to avoid noise coupling |
| 5 (NC) | No Connect | Internally unconnected; same design handling as Pin 4 |
| 6 (NC) | No Connect | Internally unconnected; same design handling as Pin 4 |
| 7 (VCC) | Supply Voltage | Primary power input (1.8–5.5 V); requires local 10–100 nF ceramic decoupling capacitor placed within 2 mm of pin |
| 8 (WC) | Write Control Input | Active-high hardware lock: drives high to disable all write operations (byte/page), preventing accidental corruption during firmware updates |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.8–5.5 V) | Eliminates need for dedicated voltage translators when interfacing with mixed-supply SoCs or FPGAs |
| Hardware write protection (WC pin) | Enables fail-safe configuration lockdown during critical runtime phases (e.g., motor startup, safety state transitions) |
| 400 kHz I²C speed | Reduces total configuration time by ~4× versus 100 kHz devices-critical for high-throughput manufacturing test fixtures |
| 16-byte page write | Allows writing full sensor calibration blocks in one transaction, reducing I²C bus arbitration overhead and host firmware complexity |
| 200-year data retention | Supports lifetime calibration storage in medical devices and infrastructure equipment without periodic refresh or backup power |
| ECOPACK2 packaging | Meets RoHS, REACH, and halogen-free requirements for global industrial and automotive deployments |
Applications
| Industrial PLC Configuration Storage | Smart Sensor Calibration Memory |
|---|---|
|
Use Scenario: Storing I/O mapping, PID tuning parameters, and alarm thresholds in modular programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during cold boot and runtime reconfiguration via I²C master (ARM Cortex-M7). Use Value: Enables field-upgradable logic programs without requiring external flash or battery-backed SRAM; WC pin prevents parameter corruption during brown-out events. |
Use Scenario: Holding factory-trimmed offset/gain coefficients and temperature compensation curves for MEMS pressure sensors. IC Role / Device Role / Timing Role: Calibration data repository read once at sensor initialization; write-protected after final test using WC pin. Use Value: Eliminates need for laser trimming or OTP fuses; allows post-packaging calibration and field recalibration with traceable revision control. |
| Power Supply Sequencing Controller | IoT Edge Node Identity Storage |
|
Use Scenario: Storing power-up delay values, rail enable order, and fault recovery timeouts in multi-rail DC/DC sequencers. IC Role / Device Role / Timing Role: Timing configuration store accessed by dedicated sequencer ASIC during power-on reset sequence. Use Value: Supports dynamic sequencing profiles across product variants using same hardware; 1.8 V operation allows direct connection to low-power sequencer logic. |
Use Scenario: Securing unique device identifiers (UID), TLS certificates, and OTA update keys in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Secure identity vault accessed only during secure boot and firmware update verification phases. Use Value: Provides tamper-resistant storage for cryptographic material; >4M write cycles support key rotation over 10+ years of field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16C-SSHM-T (Microchip) | Same 16 Kbit density, 1.7–5.5 V supply, but max I²C speed limited to 1 MHz only in 2.5–5.5 V range; 1.7–2.5 V operation capped at 400 kHz | Requires voltage-dependent clock rate management in mixed-supply designs; lacks dedicated WC pin - relies on software lock or block protection | Select when higher-speed operation above 400 kHz is needed at ≥2.5 V, and software-based write protection suffices |
| BR24G16FJ-3GE2 (Rohm) | 16 Kbit, 1.6–5.5 V, supports 1 MHz I²C, but specifies only 1 million write cycles and 100-year retention at 85 °C | Lower endurance and retention limit restrict use in long-life infrastructure or safety-critical systems requiring >200-year data integrity | Select for cost-sensitive consumer applications where 1M-cycle endurance meets lifetime requirements and 1 MHz speed improves throughput |
Compared with AT24C16C-SSHM-T and BR24G16FJ-3GE2, the M24C16-RMN6P provides superior long-term reliability (200-year retention, 4M cycles) and deterministic hardware write protection-critical for industrial and medical applications where data integrity cannot be compromised.
Availability
M24C16-RMN6P is available at Aetrix Electronics and suitable for industrial PLCs, smart sensor modules, power sequencers, and IoT edge nodes requiring stable component supply across extended product lifecycles.
Supply support for M24C16-RMN6P 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 M24C16-RMN6P belongs to ST's serial EEPROM product line, engineered specifically for robust, low-voltage, I²C-based configuration and calibration storage in space-constrained embedded systems.
FAQ
What is the function of the WC pin on M24C16-RMN6P?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations-including byte write, page write, and write to any memory location-when driven high. When WC is low or floating, writes are enabled. This feature prevents accidental memory corruption during power transients, firmware updates, or system resets, and is independent of I²C command execution.
Can M24C16-RMN6P operate reliably at 1.8 V while sustaining 400 kHz I²C communication?
Yes. The M24C16-R variant (including MN6P package) is fully specified for 1.8 V to 5.5 V operation and supports 400 kHz I²C clock frequency across the entire voltage range. Electrical characteristics-including input thresholds, output drive strength, and timing parameters-are guaranteed at 1.8 V per DS9194 Rev 11 Section 8, Table 6.
How does the M24C16-RMN6P handle page boundary crossing during page write?
During page write, if more than 16 bytes are sent or the address crosses a 16-byte page boundary, the device performs automatic "roll-over": excess bytes wrap around to the start of the same page (address 0x00 within that page). This behavior is deterministic and documented in Section 5.1.2 of the datasheet; no error or NACK occurs, and the host must manage alignment if contiguous addressing is required.
Is the TSSOP8 package of M24C16-RMN6P compatible with standard SO8 footprints?
No. The TSSOP8 (MN) package has 169 mil width and 0.65 mm pitch, whereas standard SO8 (MN) is 150 mil width with 1.27 mm pitch. These are mechanically incompatible-PCB land patterns, stencil apertures, and reflow profiles differ significantly. Use only the TSSOP8 footprint defined in ST's ECOPACK2 mechanical drawings (Doc ID 15223).
M24C16-RMN6P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
M24C16-RMN6P FAQ
1.How can I place an order for M24C16-RMN6P through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C16-RMN6P 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-RMN6P reliable?
The price and inventory of M24C16-RMN6P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C16-RMN6P is usually 5 days.
3.What payment methods are accepted for M24C16-RMN6P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C16-RMN6P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C16-RMN6P?
M24C16-RMN6P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C16-RMN6P 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-RMN6P?
For technical support, including M24C16-RMN6P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C16-RMN6P requirements.
6.How does Aetrix verify that M24C16-RMN6P is sourced from the original manufacturer or authorized distributors?
All M24C16-RMN6P 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-RMN6P meets industry standards.
7.What is the process for return or replacement of M24C16-RMN6P?
All M24C16-RMN6P units undergo pre-shipment inspection (PSI). If there is an issue with M24C16-RMN6P, 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-RMN6P part is unused and in its original packaging.
Return procedure for M24C16-RMN6P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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