STMicroelectronics M24C04-RMN6TP
- Part No.:
- M24C04-RMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M24C04-RMN6TP.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
M24C04-RMN6TP from STMicroelectronics is a 4-Kbit I²C-compatible serial EEPROM organized as 512 × 8 bits, operating at up to 400 kHz clock frequency with 1.8 V to 5.5 V single-supply voltage. It features 16-byte page write capability, 4 million write cycles endurance, and 200-year data retention at 55 °C - deployed in industrial sensor calibration storage and embedded system configuration memory.
For engineers reviewing the M24C04-RMN6TP datasheet, M24C04-RMN6TP pinout, M24C04-RMN6TP application, or M24C04-RMN6TP equivalent, key selection considerations include supply voltage compatibility (1.8–5.5 V), I²C bus timing compliance (400 kHz max), write-protect control via WC pin, and package-specific pin mapping for TSSOP8 (MN) footprint.
Technical Context
The M24C04-RMN6TP implements a standard I²C slave protocol with start/stop detection, ACK/NACK handshaking, and 7-bit device addressing where E1/E2 pins configure the two MSB address bits (b3,b2). Its internal architecture includes a page latch, X/Y decoders, HV generator for EEPROM programming, and automatic address incrementing during sequential read.
Write protection is hardware-enforced via the WC input: high level disables all writes to the full 512-byte array, while low or floating enables byte/page writes. The device integrates power-on reset (POR) to prevent spurious writes during power ramp-up, and supports both random and sequential read modes with roll-over addressing (except in DFN5 package).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 Kbit (512 × 8 bits) - sufficient for firmware revision flags, sensor offset tables, or secure boot keys in compact embedded systems. |
| I²C clock frequency | Up to 400 kHz - compatible with standard/fast-mode I²C controllers without requiring clock stretching support. |
| Supply voltage range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic (e.g., microcontrollers with low-VCC IO) and legacy 5 V systems. |
| Write cycle endurance | 4 million cycles at 25 °C - enables daily reconfiguration over >10 years in field-deployed telemetry nodes. |
| Data retention | 200 years at 55 °C - guarantees long-term integrity of calibration data in unattended industrial monitoring equipment. |
| Page size | 16 bytes - optimizes write efficiency for parameter blocks aligned to common MCU register widths (e.g., 4×32-bit config sets). |
| Operating temperature | −40 °C to +85 °C - qualified for use in automotive body control modules and outdoor environmental sensors. |
Pinout & Package
Package: TSSOP8 (ECOPACK2), 169 mil width, RoHS-compliant and halogen-free. Pin 1 identified by notch or dot marking; pin numbering counterclockwise from top-left corner when marking side faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - E2 | Chip enable (address bit b2) | Hardwired to VSS or VCC to set device I²C address; floating reads as low (0); not connected in DFN5 variant. |
| 2 - E1 | Chip enable (address bit b3) | Configures second address bit; must be stable before I²C start condition; unused in DFN5 package. |
| 3 - SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up; shares bus with other I²C slaves; supports wired-AND arbitration. |
| 4 - VSS | Ground reference | Primary return path for all signals and VCC decoupling; must be low-impedance connection to minimize noise coupling. |
| 5 - SCL | Serial clock input | Master-generated clock strobe; rising edge samples SDA input, falling edge drives SDA output; must meet tRISE/tFALL ≤ 50 ns. |
| 6 - WC | Write control input | Active-high hardware write protect: high = all writes inhibited; low or floating = writes enabled; no software lock required. |
| 7 - VCC | Supply voltage | 1.8–5.5 V DC input; requires local 10–100 nF ceramic decoupling capacitor between VCC and VSS near package pins. |
| 8 - E1 (NC) | No connect (TSSOP8 only) | Not internally bonded in TSSOP8; left unconnected per ECOPACK2 design - no routing or termination needed. |
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. |
| Extended voltage operation | 1.8 V minimum supply enables direct interface with ultra-low-power MCUs (e.g., STM32L0/L4) without level shifters. |
| High endurance & retention | 4M write cycles and 200-year data retention validated per JEDEC JESD22-A117 - suitable for lifetime-critical calibration storage. |
| I²C fast-mode support | 400 kHz clock tolerance with guaranteed tLOW/tHIGH and setup/hold timing - interoperable with most ARM Cortex-M and RISC-V I²C peripherals. |
| Enhanced robustness | 3 kV HBM ESD rating and latch-up immunity per JESD78 - withstands handling and board-level ESD events in manufacturing environments. |
Applications
| Industrial Sensor Calibration | Embedded System Configuration |
|---|---|
|
Use Scenario: Storing factory-calibrated temperature/pressure offset coefficients in smart transmitters deployed in oil & gas pipelines. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at power-up via I²C; retains values across 15+ year service life without battery backup. Use Value: Eliminates need for external battery-backed SRAM; enables recalibration in-field using same I²C interface used for sensor data reads. |
Use Scenario: Holding boot-time parameters (UART baud rate, display brightness, network MAC address) in medical infusion pumps. IC Role / Device Role / Timing Role: I²C slave providing persistent settings storage; accessed during initialization sequence before real-time OS starts. Use Value: Ensures consistent user-configured behavior across power cycles and firmware updates without host MCU flash wear. |
| Automotive Body Control | IoT Edge Node Identity |
|
Use Scenario: Recording door lock actuation counts and mirror position presets in vehicle body control units (BCUs). IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced to 3.3 V CAN microcontroller; operates reliably at −40 °C cold cranking conditions. Use Value: Supports ASIL-B relevant logging functions with deterministic write latency (<5 ms) and hardware write lock during CAN message bursts. |
Use Scenario: Securing unique device identifiers (UID), TLS root certificates, and OTA update signatures in LPWAN gateways. IC Role / Device Role / Timing Role: Tamper-resistant nonvolatile storage for cryptographic material; accessed only during secure boot and firmware validation. Use Value: Prevents unauthorized cloning via hardware-based write protection (WC pin tied high in production) and 200-year data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C04D-SSHM-T (Microchip) | Same 4-Kbit capacity, 1.7–5.5 V supply, but lacks WC pin; write protection implemented via software address locking. | Requires firmware-level protection logic; unsuitable where hardware-level fail-safe write disable is mandated (e.g., ISO 26262 ASIL-B). | Select if cost-sensitive designs accept software-managed protection and do not require WC pin-level security. |
| BR24G04FJ-WE2 (ROHM) | 1.6–5.5 V operation, 1 MHz I²C support, and built-in error correction code (ECC); package limited to SOP8 and TSSOP8. | Enables faster configuration loading and improved bit-error resilience in noisy industrial environments; ECC adds ~2% area overhead. | Select when system-level reliability requires ECC and higher-speed I²C transfers are available in the host controller. |
Compared with AT24C04D-SSHM-T and BR24G04FJ-WE2, the M24C04-RMN6TP provides deterministic hardware write disable via WC pin and broader industrial temperature qualification (−40 °C to +85 °C), making it preferred for safety-critical or high-reliability deployments where software-based protection is insufficient.
Availability
M24C04-RMN6TP is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded system configuration, and automotive body control applications requiring stable component supply across extended product lifecycles.
Supply support for M24C04-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 solutions for industrial, automotive, and consumer markets.
The M24C04 series belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, I²C-based nonvolatile storage in space-constrained embedded systems with stringent reliability requirements.
FAQ
What is the function of the WC pin on M24C04-RMN6TP?
The WC (Write Control) pin is an active-high hardware write protect input. When driven high, it disables all write operations to the entire 512-byte memory array - including byte and page writes - regardless of I²C command. This prevents accidental overwrites during power transitions or firmware errors. When low or floating, writes are enabled and follow standard I²C protocol timing.
Does M24C04-RMN6TP support I²C clock stretching?
No, the M24C04-RMN6TP does not support clock stretching. It is a simple I²C slave with fixed internal timing: after receiving a stop condition following a write command, it initiates an internal write cycle (tW ≤ 5 ms) during which it ignores all bus activity. Host systems must poll the ACK bit or wait the maximum tW before issuing subsequent commands.
Can M24C04-RMN6TP be used with 1.8 V I/O microcontrollers without level shifting?
Yes. The M24C04-RMN6TP supports 1.8 V to 5.5 V supply voltage and has input thresholds defined as 0.2VCC (low) and 0.8VCC (high), making it fully compatible with 1.8 V logic levels. Its SDA/SCL inputs operate correctly with 1.8 V microcontrollers (e.g., STM32L0x, nRF528xx) without external level shifters, provided VCC is set to 1.8 V.
How is device addressing configured for M24C04-RMN6TP in TSSOP8 package?
In the TSSOP8 package, E1 and E2 pins configure bits b3 and b2 of the 7-bit I²C device address (1010 E2 E1 A8 RW). For example, tying E2=VSS and E1=VCC yields address 0xA4 (write) / 0xA5 (read). These pins must be statically pulled to VSS or VCC - floating defaults to 00 - and cannot be dynamically controlled during operation.
M24C04-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:
- 4Kbit
- Memory Organization:
- 512 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
M24C04-RMN6TP FAQ
1.How can I place an order for M24C04-RMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C04-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 M24C04-RMN6TP reliable?
The price and inventory of M24C04-RMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C04-RMN6TP is usually 5 days.
3.What payment methods are accepted for M24C04-RMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C04-RMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C04-RMN6TP?
M24C04-RMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C04-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 M24C04-RMN6TP?
For technical support, including M24C04-RMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C04-RMN6TP requirements.
6.How does Aetrix verify that M24C04-RMN6TP is sourced from the original manufacturer or authorized distributors?
All M24C04-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 M24C04-RMN6TP meets industry standards.
7.What is the process for return or replacement of M24C04-RMN6TP?
All M24C04-RMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M24C04-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 M24C04-RMN6TP part is unused and in its original packaging.
Return procedure for M24C04-RMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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