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STMicroelectronics M24C01-WMN6TP
- Part No.:
- M24C01-WMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C01-WMN6TP.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,004
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Product details
Overview
M24C01-WMN6TP from STMicroelectronics is a 1-Kbit (128 × 8) I²C-compatible serial EEPROM with hardware write protection, 16-byte page size, and operation across 2.5 V to 5.5 V supply. It supports Fast Mode (400 kHz) and Standard Mode (100 kHz) I²C bus timing, delivers >4 million write cycles, and retains data for >200 years at 55 °C - deployed in industrial sensor calibration storage and embedded system configuration memory.
For engineers reviewing the M24C01-WMN6TP datasheet, M24C01-WMN6TP pinout, M24C01-WMN6TP application, or M24C01-WMN6TP equivalent, key selection criteria include I²C voltage compatibility (2.5–5.5 V), hardware write control (WC) behavior, DFN8 package footprint constraints, and guaranteed 5 ms max write cycle time under full temperature range (-40 °C to +85 °C).
Technical Context
The device implements a slave-only I²C interface with start/stop detection, ACK/NACK handshaking, and internal address counter auto-increment. Its block diagram integrates HV generator + sequencer for EEPROM programming, page latches for 16-byte burst writes, and dual-decoder (X/Y) addressing of 128-byte memory array.
Write control (WC) is a dedicated input that disables all write operations when high - independent of E0–E2 chip enable states - while preserving read functionality. Device addressing uses fixed 7-bit identifier (1010xxx) with three programmable address bits (E2–E0) except in DFN5 packages where those pins are unconnected and hardwired to 000.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 1-Kbit (128 × 8 bits); sufficient for firmware version stamps, calibration coefficients, or small configuration tables. |
| I²C clock frequency | Up to 400 kHz (Fast Mode); enables sub-100 µs byte transfers in systems with tight timing budgets. |
| Supply voltage range | 2.5 V to 5.5 V; compatible with 3.3 V and 5 V logic domains without level-shifting. |
| Write endurance | 4 million write cycles at 25 °C; supports daily reconfiguration over 10+ years in field-deployed equipment. |
| Data retention | 200 years at 55 °C; ensures long-term integrity of stored parameters in unpowered storage scenarios. |
| Operating temperature | -40 °C to +85 °C; validated for use in automotive body control modules and industrial PLC I/O expansion cards. |
| Page size | 16 bytes; allows efficient bulk writes without crossing page boundaries in typical parameter sets. |
Pinout & Package
Package: UFDFPN8 (ECOPACK2), 2 mm × 3 mm, 0.5 mm pitch, exposed pad - RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Common return path for all signals; must be low-impedance and decoupled near pin. |
| WC | Write control input | Active-high hardware lock: disables all write operations regardless of address or data content. |
| SCL | Serial clock input | Master-generated clock; rising edge samples SDA, falling edge drives SDA (open-drain). |
| SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up; supports wired-AND bus topology. |
| VCC | Supply voltage | 2.5–5.5 V DC; requires local 10–100 nF ceramic decoupling capacitor between VCC and VSS. |
| E0 | Chip enable bit 0 | Hardwired low or tied to VSS/VCC to set LSB of 7-bit I²C address (1010xxx); not connected in DFN5. |
| E1 | Chip enable bit 1 | Configures middle bit of device address; determines I²C bus address uniqueness among up to 8 devices. |
| E2 | Chip enable bit 2 | Configures MSB of device address bits b3–b1; enables multi-device I²C topology on shared bus. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin disables all writes globally - no software command required, eliminating accidental overwrites during power transients. |
| Random & sequential read modes | Supports single-byte random access and continuous multi-byte reads with automatic address roll-over (except DFN5). |
| Enhanced ESD/latch-up immunity | 3 kV HBM ESD rating and robust latch-up immunity per JEDEC JESD78 - suitable for board-level handling and noisy industrial environments. |
| Power-on reset (POR) | Internal POR prevents spurious writes during VCC ramp-up; device remains non-responsive until stable supply is confirmed. |
| Polling via ACK | Bus master can detect write completion by reissuing start + device address and checking for ACK - avoids fixed timeout delays. |
Applications
| Industrial Sensor Calibration Storage | Embedded System Configuration Memory |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain values for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed only during initialization or recalibration; I²C interface enables sharing with microcontroller's main bus. Use Value: Hardware WC pin prevents corruption during brown-out events, ensuring calibration integrity across 200-year retention window. |
Use Scenario: Holding boot-time configuration flags (e.g., COM port settings, display brightness, network MAC address) in medical diagnostic handhelds. IC Role / Device Role / Timing Role: Low-pin-count, low-power serial memory interfaced to ARM Cortex-M0+ MCU via standard I²C peripheral. Use Value: 16-byte page writes reduce initialization latency vs. byte-by-byte writes; 2.5–5.5 V range matches battery-backed 3.3 V rail. |
| Automotive Body Control Module (BCM) | Smart Energy Meter Parameter Storage |
|
Use Scenario: Recording door lock actuation history and seat position presets in 12 V automotive BCMs operating at -40 °C to +85 °C. IC Role / Device Role / Timing Role: I²C slave device with guaranteed operation across full automotive temperature range and supply ripple tolerance. Use Value: ECOPACK2 DFN8 package meets AEC-Q200 stress requirements; >4M write cycles support daily usage over vehicle lifetime. |
Use Scenario: Storing tariff schedules, meter firmware version, and tamper-event logs in utility-grade electricity meters certified to IEC 62056. IC Role / Device Role / Timing Role: Secure, long-life memory for regulatory-critical data; WC pin enforces write-lock during normal meter operation. Use Value: 200-year data retention satisfies 20+ year field deployment mandates; RoHS/halogen-free compliance meets EU energy efficiency directives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01D-SSHM-T (Microchip) | 1-Kbit, 1.7–5.5 V supply, 400 kHz I²C, same DFN8 package but no WC pin; relies on software write protection. | Lacks hardware write lock - unsuitable where power fault immunity is mandatory. | Select when cost sensitivity outweighs need for hardware-level write disable. |
| BR24G01FJ-3GE2 (ROHM) | 1-Kbit, 1.6–5.5 V, 400 kHz I²C, DFN8, includes WC pin and identical 16-byte page size; rated for -40 °C to +105 °C. | Extended temperature range supports under-hood automotive use beyond M24C01-WMN6TP's +85 °C limit. | Choose for higher ambient temperature environments where extended thermal margin is required. |
Compared with AT24C01D-SSHM-T and BR24G01FJ-3GE2, M24C01-WMN6TP offers verified hardware write control within its specified 2.5–5.5 V range and industrial-grade reliability at lower cost than extended-temp alternatives - optimal for cost-constrained, safety-aware industrial designs.
Availability
M24C01-WMN6TP is available at Aetrix Electronics and suitable for industrial sensor calibration storage, embedded system configuration memory, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for M24C01-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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
The M24C01-W series belongs to ST's serial EEPROM product line, engineered for reliable, low-voltage, I²C-based nonvolatile storage in space-constrained embedded systems where write robustness and long data retention are critical.
FAQ
What is the function of the WC pin on M24C01-WMN6TP?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations to the entire memory array when driven high. Reads remain fully functional. This prevents accidental or power-fault-induced corruption - unlike software-based protection, WC operates independently of firmware state and requires no clock or internal logic to engage.
Can M24C01-WMN6TP operate at 1.8 V supply?
No. The M24C01-WMN6TP variant is specified for 2.5 V to 5.5 V operation only. For 1.8 V compatibility, ST offers the M24C01-R series (1.8–5.5 V), which shares identical pinout and functionality but uses different internal voltage regulation. Using W-series below 2.5 V risks unreliable communication and failed writes.
How does the DFN8 package differ from SO8N in terms of pin assignment?
Both packages share identical pin functions and numbering: VSS (1), WC (2), SCL (3), SDA (4), VCC (5), E0 (6), E1 (7), E2 (8). However, the DFN8 (UFDFPN8) has a 2 mm × 3 mm footprint with bottom-exposed thermal pad and 0.5 mm pitch, whereas SO8N uses 150-mil width with gull-wing leads and 1.27 mm pitch - requiring distinct PCB layout and reflow profiles.
Is page write supported across memory boundaries?
Yes - page write supports up to 16 bytes within a single 16-byte page (addresses 0x00–0x0F, 0x10–0x1F, etc.). If more than 16 bytes are sent, "roll-over" occurs: excess bytes wrap to the start of the same page (e.g., writing 18 bytes starting at 0x0E writes to 0x0E, 0x0F, then 0x00, 0x01). This behavior is deterministic and documented in DS9398 Rev 8 Section 5.1.2.
M24C01-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:
- 1Kbit
- Memory Organization:
- 128 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-SOIC
M24C01-WMN6TP FAQ
1.How can I place an order for M24C01-WMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C01-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 M24C01-WMN6TP reliable?
The price and inventory of M24C01-WMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C01-WMN6TP is usually 5 days.
3.What payment methods are accepted for M24C01-WMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C01-WMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C01-WMN6TP?
M24C01-WMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C01-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 M24C01-WMN6TP?
For technical support, including M24C01-WMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C01-WMN6TP requirements.
6.How does Aetrix verify that M24C01-WMN6TP is sourced from the original manufacturer or authorized distributors?
All M24C01-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 M24C01-WMN6TP meets industry standards.
7.What is the process for return or replacement of M24C01-WMN6TP?
All M24C01-WMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C01-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 M24C01-WMN6TP part is unused and in its original packaging.
Return procedure for M24C01-WMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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