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STMicroelectronics M24C02-RMN6TP
- Part No.:
- M24C02-RMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C02-RMN6TP.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:41,273
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Product details
Overview
M24C02-RMN6TP from STMicroelectronics is a 2-Kbit (256-byte) I²C-compatible serial EEPROM organized as 256 × 8 bits, operating as a slave device on standard and fast-mode I²C buses (up to 400 kHz), with 1.8 V to 5.5 V supply voltage range, -40 °C to +85 °C operating temperature, and hardware write protection via WC pin - used for nonvolatile parameter storage in embedded microcontroller systems.
For engineers reviewing the M24C02-RMN6TP datasheet, M24C02-RMN6TP pinout, M24C02-RMN6TP application, or M24C02-RMN6TP equivalent, this page delivers verified electrical parameters, validated SO8N package pin mapping, confirmed I²C addressing behavior for E0–E2 pins, and real-world use cases in industrial sensor calibration, power supply configuration, and firmware revision tracking.
Technical Context
The M24C02-RMN6TP implements a fully compliant I²C slave interface with start/stop detection, ACK/NACK handshaking, and 7-bit device addressing (1010xxxR/W), where E0–E2 pins configure the three LSBs of the address. It supports byte and page write (16-byte pages), random and sequential read modes, and internal address auto-increment.
Its memory array uses floating-gate EEPROM technology with on-chip charge pump for write operations, enabling reliable 4 million write cycles and 200-year data retention at 55 °C. Write control (WC) pin disables all writes when high, and the device includes built-in power-on reset (POR) and enhanced ESD/latch-up protection per JEDEC JS-001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8 bits) - sufficient for storing boot configuration, calibration coefficients, or device ID in space-constrained designs. |
| I²C clock frequency | Up to 400 kHz (Fast mode) - enables faster parameter updates than 100 kHz Standard mode without requiring protocol changes. |
| 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. |
| Page size | 16 bytes - defines maximum contiguous write length per STOP-triggered internal cycle; critical for optimizing firmware update latency. |
| Write endurance | 4 million cycles at 25 °C - ensures >10 years of daily reconfiguration in industrial logging applications with 1000 writes/day. |
| Data retention | 200 years at 55 °C - guarantees long-term validity of factory-trimmed sensor offsets or security keys without refresh. |
| Operating temperature | -40 °C to +85 °C - qualified for use in automotive cabin modules, industrial PLCs, and outdoor metering equipment. |
Pinout & Package
Package: SO8N (ECOPACK2), 150 mil width, 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 the pin with 10–100 nF capacitor. |
| WC | Write control input | Active-high hardware lock: when high, all write attempts are rejected with NACK; floating or low enables writes. |
| E1 | Chip enable address bit | Configures bit b2 of 7-bit I²C address (1010xxxR/W); tied high/low to select one of eight possible addresses on shared bus. |
| E0 | Chip enable address bit | Configures bit b1 of I²C address; determines device uniqueness when multiple M24C02-R units share SDA/SCL lines. |
| VCC | Supply voltage | Power input (1.8–5.5 V); requires local decoupling to suppress noise during internal write cycles (tW ≤ 5 ms). |
| E2 | Chip enable address bit | Configures bit b3 of I²C address; enables up to eight devices on same I²C bus without software address conflict. |
| SCL | Serial clock input | Master-generated clock (≤400 kHz); rising edge samples SDA, falling edge allows SDA transitions - timing must meet AC specs (tr/tf ≤ 50 ns). |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up resistor (value calculated per Figure 11 in DS9398); wired-AND compatible with other I²C slaves. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware write protection | WC pin disables entire memory array from writes - eliminates risk of accidental corruption during firmware updates or brown-out events. |
| Page write capability | 16-byte burst writes reduce I²C transaction overhead by up to 94% vs. individual byte writes - critical for efficient calibration data uploads. |
| Power-on reset (POR) | Internal POR circuit prevents spurious writes during VCC ramp-up - ensures deterministic state after cold start or power cycling. |
| Enhanced ESD protection | ±3000 V HBM rating - meets industrial immunity requirements without external TVS diodes on I²C lines. |
| Random & sequential read | Supports both single-location fetch (e.g., reading one sensor offset) and streaming reads (e.g., loading full configuration block) - simplifies host driver design. |
Applications
| Industrial Sensor Calibration | Power Supply Configuration |
|---|---|
Use Scenario: Storing factory-trimmed gain/offset values for analog temperature and pressure sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed at system boot and during field recalibration; I²C transactions occur only during maintenance windows. Use Value: Eliminates need for external trimming potentiometers or OTP fuses; enables post-manufacture calibration traceability and field correction. | Use Scenario: Holding digital setpoints (voltage/current limits, soft-start time) and fault log history in digitally controlled AC/DC power supplies. IC Role / Device Role / Timing Role: Persistent configuration store updated infrequently (<10×/day) but read at every power-on; WC pin held high during normal operation. Use Value: Allows OEMs to ship universal PSU hardware with region-specific settings loaded via service tool - no BOM variants required. |
| Firmware Revision Tracking | Embedded System Bootloader Settings |
Use Scenario: Recording firmware version, build timestamp, and secure boot status flags across over-the-air (OTA) updates in smart metering endpoints. IC Role / Device Role / Timing Role: Write-once-per-update persistent log; accessed early in boot sequence to validate image integrity before execution. Use Value: Enables rollback to last-known-good firmware if OTA update fails - reduces field failure rate and service costs. | Use Scenario: Storing bootloader-configurable options such as UART baud rate, debug port enable/disable, and watchdog timeout in medical diagnostic equipment. IC Role / Device Role / Timing Role: Static configuration storage initialized once during manufacturing and read-only during runtime; accessed before main application starts. Use Value: Permits single hardware SKU to support multiple clinical deployment profiles without firmware recompilation or flash partitioning complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02D-SSHM-T | Same 2-Kbit capacity, 1.7–5.5 V supply, but uses different I²C address scheme (1010xxxR/W vs. 1010xx0R/W); no WC pin - write protection relies on software lock or external GPIO. | Lacks hardware write disable; requires host MCU intervention to prevent accidental writes - unsuitable for safety-critical or unattended systems. | Select only if board layout lacks WC routing and host firmware can guarantee exclusive I²C access during writes. |
| BR24G02NUX-10 | 2-Kbit EEPROM with identical SO8N package and 1.7–5.5 V range, but supports 1 MHz Fast-mode Plus; no E0–E2 pins - fixed I²C address (1010000R/W) limits multi-device bus scalability. | Fixed address restricts use to single-device I²C segments; higher speed irrelevant unless host supports Fast-mode Plus and latency dominates system timing. | Choose only when bus contains only one EEPROM and host controller supports 1 MHz clock - avoids address conflict debugging effort. |
Compared with AT24C02D-SSHM-T and BR24G02NUX-10, the M24C02-RMN6TP provides deterministic hardware-level write protection and flexible I²C addressing - making it preferable for industrial systems requiring robustness against firmware bugs or concurrent bus access.
Availability
M24C02-RMN6TP is available at Aetrix Electronics and suitable for industrial sensor calibration, power supply configuration, and firmware revision tracking requiring stable component supply across multi-year production cycles.
Supply support for M24C02-RMN6TP 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 products for industrial, automotive, and consumer markets.
The M24C02-RMN6TP belongs to ST's serial EEPROM product line, engineered specifically for reliable, low-power, I²C-based nonvolatile storage in resource-constrained embedded systems - emphasizing write endurance, wide voltage operation, and industrial-grade reliability.
FAQ
What is the function of the WC pin on M24C02-RMN6TP?
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. This feature prevents accidental overwrites during power transients or firmware errors, and eliminates reliance on software-only protection schemes.
Can M24C02-RMN6TP operate at 1.6 V supply voltage?
No - the M24C02-RMN6TP variant (R suffix) is rated for 1.8 V to 5.5 V operation across the full -40 °C to +85 °C temperature range. The 1.6 V minimum applies only to the M24C02-F variant under restricted temperature conditions (e.g., write operations only above 0 °C), not to the R version.
How many unique I²C addresses can be configured using E0–E2 pins?
The E0, E1, and E2 pins configure the three least significant bits (b1–b3) of the 7-bit I²C device address (base 1010xxxR/W), allowing eight unique addresses (000 to 111) on the same bus. All three pins must be hardwired to VCC or VSS - floating pins default to logic 0, reducing available combinations.
Is the SO8N package of M24C02-RMN6TP RoHS-compliant and halogen-free?
Yes - the SO8N package is ECOPACK2 certified, meeting RoHS Directive 2011/65/EU and containing no brominated flame retardants or chlorine-based compounds. It complies with JEDEC J-STD-020 for lead-free reflow soldering and supports standard PCB assembly processes without special handling.
M24C02-RMN6TP 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:
- 2Kbit
- Memory Organization:
- 256 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
M24C02-RMN6TP FAQ
1.How can I place an order for M24C02-RMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C02-RMN6TP 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 M24C02-RMN6TP reliable?
The price and inventory of M24C02-RMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C02-RMN6TP is usually 5 days.
3.What payment methods are accepted for M24C02-RMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C02-RMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C02-RMN6TP?
M24C02-RMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C02-RMN6TP 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 M24C02-RMN6TP?
For technical support, including M24C02-RMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C02-RMN6TP requirements.
6.How does Aetrix verify that M24C02-RMN6TP is sourced from the original manufacturer or authorized distributors?
All M24C02-RMN6TP 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 M24C02-RMN6TP meets industry standards.
7.What is the process for return or replacement of M24C02-RMN6TP?
All M24C02-RMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C02-RMN6TP, 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 M24C02-RMN6TP part is unused and in its original packaging.
Return procedure for M24C02-RMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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