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STMicroelectronics M24C02-DRDW8TP/K
- Part No.:
- M24C02-DRDW8TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24C02-DRDW8TP/K.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:43,877
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Product details
Overview
M24C02-DRDW8TP/K from STMicroelectronics is a 2-Kbit (256-byte) I²C-compatible serial EEPROM with 16-byte page architecture, Schmitt-trigger inputs, and extended industrial temperature operation up to +105 °C. It supports I²C bus speeds of 1 MHz, 400 kHz, and 100 kHz, features an additional lockable 16-byte Identification Page for device ID or application parameters, and operates across 1.7 V to 5.5 V - enabling use in automotive body control modules, industrial sensor nodes, and smart meter calibration storage.
For engineers reviewing the M24C02-DRDW8TP/K datasheet, M24C02-DRDW8TP/K pinout, M24C02-DRDW8TP/K application, or M24C02-DRDW8TP/K equivalent, key selection criteria include its AEC-Q100 Grade 2 qualification, 4 million write cycles at 25 °C, 50-year data retention at 105 °C, TSSOP8 package footprint, and WC pin-based hardware write protection - all critical for long-life embedded systems requiring field-programmable nonvolatile memory with deterministic timing and noise immunity.
Technical Context
The M24C02-DRDW8TP/K implements a true EEPROM cell structure with integrated Error Correction Code (ECCx1) logic to enhance data integrity during read operations. Its I²C slave interface conforms fully to standard, fast, and high-speed modes, with ACK polling support to minimize software wait time during write cycles.
It uses three Chip Enable pins (E2, E1, E0) to configure one of eight unique 7-bit device addresses on a shared I²C bus, and includes a dedicated Write Control (WC) input that disables all writes when driven high - providing hardware-level memory protection independent of firmware state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit bytes), organized as 16 pages × 16 bytes - enables efficient block updates without full-erase overhead. |
| I²C speed support | Up to 1 MHz - allows high-throughput configuration loading in real-time systems with tight boot timing budgets. |
| Write endurance | 4 million cycles at 25 °C - supports frequent recalibration or logging in test equipment and programmable logic controllers. |
| Data retention | 50 years at 105 °C - ensures reliable parameter storage over full vehicle lifetime in under-hood automotive applications. |
| Operating voltage | 1.7 V to 5.5 V - compatible with 1.8 V, 3.3 V, and 5 V microcontroller I/O domains without level-shifting. |
| Temperature range | −40 °C to +105 °C - qualified per AEC-Q100 Grade 2, suitable for engine control units and industrial motor drives. |
| ESD protection | 4000 V HBM - reduces risk of field failure during handling or in electrically noisy environments like factory automation. |
Pinout & Package
TSSOP8 (DW) package: 8-lead thin shrink small outline, 3 mm × 6.4 mm body, 0.65 mm pitch, RoHS-compliant and halogen-free (ECOPACK2®).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E2, E1, E0 | Chip Enable address inputs | Set 3-bit device address (b2–b0) for multi-device I²C bus addressing; floating = logic low. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up; supports wire-OR with other I²C devices. |
| SCL | Serial Clock input | Master-generated clock; sampled on rising edge for data capture; controls all timing-critical operations. |
| WC | Write Control input | Hardware write lock: high = entire memory array write-inhibited; low or floating = write enabled. |
| VCC | Supply voltage | 1.7–5.5 V power rail; internal voltage regulation enables stable EEPROM operation across wide input range. |
| VSS | Ground reference | System ground return path; must be low-impedance to ensure noise-immune I²C signaling and ECC reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Identification Page | 16-byte dedicated area with ST-manufactured ID code (00h=20h, 01h=E0h, 02h=08h) and user-writable fields - enables secure device authentication and calibrated parameter storage. |
| Page Write capability | Up to 16 bytes written atomically within ≤4 ms - eliminates partial-write corruption risk during power loss in firmware update sequences. |
| Schmitt-trigger inputs | On SDA and SCL - suppresses noise-induced glitches on long PCB traces or cable-connected sensors, improving robustness in industrial settings. |
| Byte-alterable memory | No block erase required - individual byte modification enables fine-grained configuration updates without disrupting adjacent stored data. |
| ACK polling support | Allows host MCU to detect write completion via repeated START+address+ACK sequence - eliminates fixed delay loops and improves system responsiveness. |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
|
Use Scenario: Storing seat position presets, mirror calibration offsets, and lighting profiles in a vehicle door module. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with AEC-Q100 Grade 2 qualification and 105 °C operation for under-door environment. Use Value: Enables zero-power retention of user preferences across ignition cycles while surviving thermal cycling and vibration stress. |
Use Scenario: Retaining sensor linearization coefficients and factory calibration data in a wireless temperature transmitter. IC Role / Device Role / Timing Role: Field-programmable parameter storage accessed via I²C during commissioning or maintenance. Use Value: Eliminates need for external calibration EEPROM; 50-year data retention ensures accuracy compliance over product lifetime. |
| Smart Energy Meter | Programmable Logic Controller (PLC) |
|
Use Scenario: Holding tariff tables, billing cycle counters, and tamper-event logs in a DIN-rail mounted electricity meter. IC Role / Device Role / Timing Role: Secure, write-protected memory for revenue-critical data with hardware lock via WC pin. Use Value: Prevents unauthorized firmware or tariff modifications; Identification Page stores meter serial number for traceability. |
Use Scenario: Storing I/O mapping configuration, PID tuning parameters, and alarm thresholds in a modular PLC base unit. IC Role / Device Role / Timing Role: Configuration memory accessible during runtime by ARM Cortex-M host with minimal I²C overhead. Use Value: Enables field reconfiguration without firmware reload; 1 MHz I²C speed supports rapid parameter upload during commissioning. |
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 (Microchip) | Same 2-Kbit capacity, 1 MHz I²C, but rated only to 85 °C and lacks AEC-Q100 qualification. | Not suitable for under-hood automotive use; acceptable for commercial-grade industrial controllers. | Select if cost sensitivity outweighs extended temperature or automotive qualification requirements. |
| BR24G02-3MNUC (ROHM) | Includes built-in 1.8 V–5.5 V voltage detector and reset output; no Identification Page or ECC logic. | Provides power-fail safety features but sacrifices device ID and error correction for calibration-critical systems. | Prefer when system-level brown-out detection is prioritized over long-term data integrity assurance. |
Compared with AT24C02D-SSHM-T and BR24G02-3MNUC, the M24C02-DRDW8TP/K uniquely combines AEC-Q100 Grade 2 qualification, 105 °C operation, ECC-enhanced reads, and a lockable Identification Page - making it the only choice for automotive and high-reliability industrial applications demanding both longevity and traceability.
Availability
M24C02-DRDW8TP/K is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor calibration, and smart metering applications requiring stable component supply, long-lifecycle support, and guaranteed ECOPACK2® compliance.
Supply support for M24C02-DRDW8TP/K 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 management ICs, sensors, and memory solutions for automotive, industrial, and consumer markets.
The M24C02-DRDW8TP/K belongs to ST's M24Cxx-DRE series of AEC-Q100-qualified EEPROMs, engineered specifically for mission-critical automotive and industrial applications where data integrity, extended temperature resilience, and hardware write protection are mandatory.
FAQ
Is the M24C02-DRDW8TP/K pin-compatible with other M24C02 variants?
Yes - the M24C02-DRDW8TP/K shares identical TSSOP8 pinout and electrical behavior with all M24C02-DRE family members, including SO8N and WFDFPN8 variants. Pin functions (SCL, SDA, E2–E0, WC, VCC, VSS) are fully consistent across packages, enabling drop-in replacement when board layout permits the smaller TSSOP8 footprint.
What is the purpose of the Identification Page and how is it locked?
The Identification Page is a dedicated 16-byte memory region containing ST's device ID (bytes 00h–02h) and user-programmable space. It is locked permanently via the "Lock Identification Page" instruction (Section 4.1.4), after which all subsequent write attempts to this page return NACK - ensuring calibration data or serial numbers cannot be altered post-deployment.
Does the M24C02-DRDW8TP/K require external pull-up resistors on SDA and SCL?
Yes - SDA and SCL are open-drain outputs requiring external pull-up resistors to VCC. Recommended values range from 1.8 kΩ (for 1 MHz, low-capacitance buses) to 10 kΩ (for 100 kHz, high-capacitance buses), calculated using Figures 10 and 11 in the datasheet based on bus capacitance and desired rise time.
How does the Write Control (WC) pin affect I²C communication?
When WC is high, the device acknowledges device select and address bytes but returns NACK on all data bytes - blocking writes while maintaining bus visibility. This allows firmware to verify address decoding and bus arbitration without risking unintended memory modification, even during debug or initialization sequences.
M24C02-DRDW8TP/K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 4ms
- Access Time:
- 450 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
M24C02-DRDW8TP/K FAQ
1.How can I place an order for M24C02-DRDW8TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24C02-DRDW8TP/K 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-DRDW8TP/K reliable?
The price and inventory of M24C02-DRDW8TP/K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M24C02-DRDW8TP/K is usually 5 days.
3.What payment methods are accepted for M24C02-DRDW8TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24C02-DRDW8TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24C02-DRDW8TP/K?
M24C02-DRDW8TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24C02-DRDW8TP/K 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-DRDW8TP/K?
For technical support, including M24C02-DRDW8TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24C02-DRDW8TP/K requirements.
6.How does Aetrix verify that M24C02-DRDW8TP/K is sourced from the original manufacturer or authorized distributors?
All M24C02-DRDW8TP/K 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-DRDW8TP/K meets industry standards.
7.What is the process for return or replacement of M24C02-DRDW8TP/K?
All M24C02-DRDW8TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24C02-DRDW8TP/K, 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-DRDW8TP/K part is unused and in its original packaging.
Return procedure for M24C02-DRDW8TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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