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STMicroelectronics M24C01-WMN6TP/S
- Part No.:
- M24C01-WMN6TP/S
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C01-WMN6TP/S.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,507
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Product details
Overview
M24C01-WMN6TP/S 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/S datasheet, M24C01-WMN6TP/S pinout, M24C01-WMN6TP/S application, or M24C01-WMN6TP/S equivalent, key selection criteria include I²C address flexibility via E0–E2 pins, WC-controlled full-array write lock, SO8N ECOPACK2 packaging, and guaranteed -40 °C to +85 °C operation without voltage derating.
Technical Context
This 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) enables hardware-level memory lockdown: when high, all write attempts are rejected with NACK while read and address acknowledge remain functional. Chip enable pins E0–E2 configure the three LSBs of the 7-bit device address (1010xxx), supporting up to eight devices on one bus - except in UFDFPN5 where E0–E2 are unconnected and fixed to 000.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1-Kbit (128 × 8 bits), organized as single contiguous array - supports compact firmware parameter storage without external address decoding logic. |
| I²C clock frequency | Up to 400 kHz (Fast Mode) - enables sub-10 ms page writes and real-time configuration updates in resource-constrained microcontrollers. |
| Supply voltage range | 2.5 V to 5.5 V - interoperable with 3.3 V and 5 V logic domains without level shifters; no extended low-voltage operation like R/F variants. |
| Page size | 16 bytes - defines maximum atomic write length; crossing page boundary triggers automatic rollover to start of same page, simplifying buffer management. |
| Write endurance | 4,000,000 cycles at 25 °C - supports daily reconfiguration over 10+ years in logging or calibration applications. |
| Data retention | 200 years at 55 °C - ensures long-term reliability in sealed industrial enclosures without battery backup. |
| Operating temperature | -40 °C to +85 °C - qualified for use in automotive body control modules and factory automation PLCs without thermal derating. |
Pinout & Package
Package: SO8N (ECOPACK2), 150 mil width, RoHS-compliant and halogen-free. Pin 1 identified by notch or dot marking; pin 1 corner located at top-left when marking side faces up and notch points upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Common return path for all signals and internal circuitry; must be low-impedance connection to system GND plane. |
| WC | Write control input | Active-high hardware lock: drives entire memory array read-only when pulled high; floating or low enables write access. |
| E1 | Chip enable input | Configures bit b2 of 7-bit I²C device address (1010xxx); tied high/low to select among eight possible addresses on shared bus. |
| E0 | Chip enable input | Configures bit b1 of 7-bit I²C device address; used with E1/E2 to avoid address collision in multi-device systems. |
| VCC | Supply voltage | 2.5–5.5 V DC input; requires local 10–100 nF decoupling capacitor between VCC and VSS near package pins. |
| E2 | Chip enable input | Configures bit b3 of 7-bit I²C device address; determines unique slave identity alongside E0/E1 and fixed prefix 1010. |
| SCL | Serial clock input | Master-generated clock signal; rising edge samples SDA, falling edge allows SDA transition - must meet tRISE/tFALL ≤ 50 ns. |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up resistor (calculated per Figure 11 in DS9398); wired-AND compatible with other I²C slaves. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin disables all write operations globally - prevents accidental firmware corruption during power transients or software faults. |
| 16-byte page write | Enables burst programming of up to 16 bytes per stop condition - reduces I²C transaction overhead by 87% vs. byte-by-byte writes. |
| Address configurability | E0–E2 pins set three LSBs of 7-bit I²C address - supports eight independent M24C01-W devices on one bus without address conflict. |
| Enhanced reliability | 4M write cycles and 200-year data retention qualified per JEDEC standards - eliminates need for wear-leveling firmware in simple storage tasks. |
| Robust I/O design | ESD rating ≥3 kV HBM, latch-up immunity per JESD78 - survives handling and board-level ESD events in manufacturing and field environments. |
Applications
| Industrial Sensor Calibration | Embedded System Configuration |
|---|---|
|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed at boot and during field recalibration via I²C master MCU. Use Value: Enables plug-and-play sensor replacement without manual coefficient entry; WC pin prevents runtime corruption during EMC events. |
Use Scenario: Holding user-defined settings (display brightness, network timeout, alarm thresholds) in medical diagnostic handhelds. IC Role / Device Role / Timing Role: Persistent configuration memory updated only on menu save; read at startup and during UI interaction. Use Value: Guarantees settings survive battery removal; 128-byte capacity fits all critical parameters with margin for future expansion. |
| Automotive Body Control | Smart Meter Firmware Patch Storage |
|
Use Scenario: Recording door lock actuator cycle counts and error logs in vehicle body control units (BCUs). IC Role / Device Role / Timing Role: Event-logged data storage triggered by CAN message interrupts and serviced via I²C polling. Use Value: -40 °C to +85 °C rating ensures operation under hood temperatures; 4M endurance supports 10+ year service life. |
Use Scenario: Storing delta patches for firmware updates in utility smart meters deployed in remote substations. IC Role / Device Role / Timing Role: Secure patch repository accessed only during verified OTA update sequences using WC-protected write windows. Use Value: Hardware write lock prevents malicious or corrupted patch injection; 2.5–5.5 V range matches meter's 3.3 V supply rail. |
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 | 1-Kbit, 1.7–5.5 V supply, 1-MHz I²C, 8-pin SOIC; lacks WC pin and E0–E2 address pins - fixed address only. | Requires external GPIO or software lock for write protection; limited to single-device I²C buses. | Select when higher speed (1 MHz) and lower minimum voltage (1.7 V) outweigh need for hardware write lock and multi-device addressing. |
| M24C01-RMN6TP | 1-Kbit, 1.8–5.5 V supply, identical SO8N package and pinout; includes E0–E2 and WC, but wider VCC range enables 1.8 V MCU compatibility. | Supports same industrial and automotive applications, but extends operation to 1.8 V logic families (e.g., ultra-low-power MCUs). | Select when interfacing with 1.8 V or mixed-voltage systems; otherwise, M24C01-WMN6TP/S offers optimal cost/performance for 3.3 V/5 V designs. |
Compared with AT24C01D-SSHM-T, M24C01-WMN6TP/S provides hardware write protection and configurable addressing essential for robust multi-node systems; versus M24C01-RMN6TP, it trades 1.8 V support for tighter process control and lower unit cost in standard 3.3 V/5 V applications.
Availability
M24C01-WMN6TP/S is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded system configuration, automotive body control, and smart meter firmware patch storage requiring stable component supply across extended product lifecycles.
Supply support for M24C01-WMN6TP/S 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.
M24C01-WMN6TP/S belongs to the M24Cxx-W series of I²C EEPROMs engineered for high-reliability, low-power, and space-constrained embedded applications - emphasizing robustness, ease of integration, and long-term supply stability.
FAQ
What is the function of the WC pin on M24C01-WMN6TP/S?
The WC (Write Control) pin is an active-high hardware lock that disables all write operations to the entire memory array when driven high. When WC is low or floating, writes are enabled. During WC = high, the device still acknowledges device select and address bytes but returns NACK on data bytes - preventing accidental overwrites during power transitions or software errors.
Can M24C01-WMN6TP/S operate at 1.8 V?
No. M24C01-WMN6TP/S is rated for 2.5 V to 5.5 V supply only. For 1.8 V operation, STMicroelectronics offers the M24C01-RMN6TP variant, which shares identical SO8N packaging and pinout but extends VCC(min) to 1.8 V. Using M24C01-WMN6TP/S below 2.5 V risks unreliable communication and failed write cycles.
How many devices can share the same I²C bus with M24C01-WMN6TP/S?
Up to eight M24C01-WMN6TP/S devices can coexist on one I²C bus using the E0, E1, and E2 pins to configure unique 3-bit address extensions (b3–b1) of the base 1010xxx address. Each combination of E0–E2 ties sets a distinct slave address, enabling multi-device topology without external multiplexers or address translation logic.
Is the SO8N package of M24C01-WMN6TP/S RoHS-compliant?
Yes. The SO8N package is ECOPACK2-certified: fully RoHS-compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and supports lead-free reflow soldering profiles up to 260 °C peak temperature.
M24C01-WMN6TP/S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not 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/S FAQ
1.How can I place an order for M24C01-WMN6TP/S through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C01-WMN6TP/S 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/S reliable?
The price and inventory of M24C01-WMN6TP/S 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/S is usually 5 days.
3.What payment methods are accepted for M24C01-WMN6TP/S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C01-WMN6TP/S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C01-WMN6TP/S?
M24C01-WMN6TP/S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C01-WMN6TP/S 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/S?
For technical support, including M24C01-WMN6TP/S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C01-WMN6TP/S requirements.
6.How does Aetrix verify that M24C01-WMN6TP/S is sourced from the original manufacturer or authorized distributors?
All M24C01-WMN6TP/S 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/S meets industry standards.
7.What is the process for return or replacement of M24C01-WMN6TP/S?
All M24C01-WMN6TP/S units undergo pre-shipment inspection (PSI). If there is an issue with M24C01-WMN6TP/S, 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/S part is unused and in its original packaging.
Return procedure for M24C01-WMN6TP/S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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