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STMicroelectronics M24128-DRDW8TP/K
- Part No.:
- M24128-DRDW8TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M24128-DRDW8TP/K.pdf
- Description:
- IC EEPROM 128KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:18,957
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Product details
Overview
M24128-DRDW8TP/K from STMicroelectronics is a 128-Kbit (16 Kbyte) I²C-compatible serial EEPROM with 64-byte page size, -40 °C to +105 °C operating range, and 1.7–5.5 V supply voltage. It features an additional lockable 64-byte Identification Page for device ID and application parameters, and supports 1 MHz I²C bus speed. Used in automotive body control modules for storing calibration data and configuration profiles.
For engineers reviewing the M24128-DRDW8TP/K datasheet, M24128-DRDW8TP/K pinout, M24128-DRDW8TP/K application, or M24128-DRDW8TP/K equivalent, this page delivers verified electrical specs, TSSOP8 package details, I²C timing constraints, write endurance at elevated temperature, and real-world use cases in AEC-Q100 Grade 2 systems.
Technical Context
This EEPROM implements a true byte-alterable memory array organized as 256 pages × 64 bytes, with embedded Error Correction Code (ECC) logic enhancing data integrity across temperature extremes. The device operates exclusively as an I²C slave, requiring external pull-up resistors on SDA/SCL and supporting standard, fast, and fast-plus modes up to 1 MHz.
Chip Enable (E2/E1/E0) pins configure the 3-bit address portion of the 7-bit I²C device select code (1010b for main memory, 1011b for Identification Page), enabling up to eight devices on one bus. Write Control (WC) provides hardware-level write protection: high = full memory lock, low/floating = write enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 128 Kbit (16 Kbytes), organized as 256 × 64-byte pages - enables efficient block writes without cross-page boundary handling. |
| I²C Speed Support | 1 MHz (fast-plus), 400 kHz (fast), 100 kHz (standard) - compatible with legacy and high-speed microcontroller peripherals. |
| Write Cycle Time | ≤4 ms for Byte Write and Page Write - reduces firmware blocking time during nonvolatile storage operations. |
| Endurance @ 105 °C | 900 k write cycles - validated for under-hood automotive applications with sustained high-temperature operation. |
| Data Retention @ 105 °C | ≥50 years - ensures long-term reliability in safety-critical calibration storage without refresh. |
| Supply Voltage Range | 1.7 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V logic domains without level shifters. |
| ESD Protection | 4000 V HBM - robust against handling and board-level electrostatic discharge in manufacturing and field environments. |
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 | Chip Enable (LSB) | Configures bit b1 of 7-bit I²C device address; must be tied high/low - floating reads as low. |
| E1 | Chip Enable (middle) | Configures bit b2 of device address; determines unique I²C address among up to eight parallel devices. |
| E0 | Chip Enable (MSB) | Configures bit b3 of device address; enables multi-device I²C topology without software address remapping. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up; supports wire-OR with other I²C slaves. |
| SCL | Serial Clock Input | Master-generated clock - defines data sampling edge (rising) and controls ACK timing window. |
| WC | Write Control | Hardware write lock: high = all memory writes inhibited (including Identification Page); low/floating = enabled. |
| VSS | Ground Reference | Return path for VCC and all internal logic - must be low-impedance connection to minimize noise coupling. |
| VCC | Supply Voltage | Power input for core and interface - supports wide-range operation; decoupling capacitor required per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Identification Page | 64-byte dedicated area with factory-programmed ST device ID (00h–02h) and user-writable/application-lockable space - enables secure device authentication and immutable parameter storage. |
| Schmitt Trigger Inputs | On SCL, SDA, E2/E1/E0, and WC - rejects noise spikes up to 30% VCC, eliminating false triggering in electrically noisy automotive environments. |
| Extended Temperature Range | -40 °C to +105 °C with full functionality and spec compliance - qualified to AEC-Q100 Grade 2 for engine bay and powertrain control units. |
| Page Write Optimization | Single Stop condition triggers ≤4 ms internal write for up to 64 contiguous bytes - minimizes bus occupation and host CPU wait time. |
| Write Cycle Endurance Grading | Specified at 25 °C (4M), 85 °C (1.2M), and 105 °C (900k) - enables accurate lifetime estimation for thermal-profiled applications. |
Applications
| Automotive Body Control Unit | Industrial PLC Configuration Storage |
|---|---|
|
Use Scenario: Storing seat position presets, mirror angle calibrations, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Nonvolatile configuration register - retains settings across ignition cycles and battery disconnects. Use Value: Enables plug-and-play replacement without reprogramming; ECC ensures integrity after 15+ years of thermal cycling. |
Use Scenario: Holding I/O mapping tables, PID tuning constants, and firmware update metadata in modular automation controllers. IC Role / Device Role / Timing Role: Field-updatable parameter store - accessed via I²C during boot and runtime diagnostics. Use Value: Eliminates need for external programming tools; 1.7–5.5 V operation supports brown-out tolerant industrial power rails. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Patch Log |
|
Use Scenario: Recording flow rate calibration coefficients, sensor offset corrections, and usage history in Class II medical devices. IC Role / Device Role / Timing Role: Safety-critical data logger - writes only during maintenance mode with WC pin asserted for lock verification. Use Value: 50-year data retention at 105 °C validates long-term traceability for FDA audit requirements. |
Use Scenario: Logging firmware patch timestamps, checksums, and rollback pointers in utility-grade electricity meters deployed outdoors. IC Role / Device Role / Timing Role: Tamper-resistant update journal - Identification Page stores cryptographic keys locked after first use. Use Value: Hardware-enforced write lock prevents unauthorized modification of critical security parameters post-deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24CS128-SSHL-T | 128 Kbit, I²C, 1.7–5.5 V, but max temp = 85 °C; no Identification Page; 1 MHz support only at 2.5–5.5 V. | Lacks AEC-Q100 qualification and 105 °C rating - unsuitable for under-hood automotive use. | Select when cost sensitivity outweighs extended temperature needs and hardware lock capability is not required. |
| BR24G128FJ-3GE2 | 128 Kbit, I²C, -40 °C to +105 °C, but page size = 32 bytes; no dedicated Identification Page; 400 kHz max speed. | Half-page size increases write overhead for large data blocks; no hardware-locked ID region for secure provisioning. | Prefer for legacy I²C systems limited to 400 kHz and where smaller page granularity improves partial updates. |
Compared with AT24CS128-SSHL-T and BR24G128FJ-3GE2, the M24128-DRDW8TP/K uniquely combines 105 °C operation, 1 MHz speed, 64-byte page efficiency, and a factory-verified, lockable Identification Page - making it the only choice for AEC-Q100 Grade 2 systems requiring both longevity and secure parameter binding.
Availability
M24128-DRDW8TP/K is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, medical infusion pumps, and smart energy metering requiring stable component supply across extended temperature and voltage ranges.
Supply support for M24128-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 ICs, sensors, and memory solutions for automotive, industrial, and consumer markets.
The M24128-DRDW8TP/K belongs to ST's automotive-qualified serial EEPROM product line, engineered specifically for AEC-Q100 Grade 2 compliance, extended-temperature data logging, and secure configuration storage in safety-relevant electronic control units.
FAQ
What is the function of the WC pin on the M24128-DRDW8TP/K?
The WC (Write Control) pin provides hardware-level write protection: when driven high, it disables all write operations-including Byte Write, Page Write, and Identification Page Write-across the entire memory array. When low or left floating, writes are enabled. This pin is critical for preventing accidental overwrites during system power-up or firmware glitches.
Can the Identification Page be rewritten after being locked?
No. Once the Identification Page is locked via the Lock Identification Page instruction (I²C command sequence), the lock is permanent and irreversible. The page becomes read-only for the life of the device. Unlocking is not supported by design to ensure tamper resistance for device ID and security-critical parameters.
How does the ECC logic improve reliability in this EEPROM?
The embedded ECC logic detects and corrects single-bit errors in real time during read operations across the full 128-Kbit array. It uses Hamming code-based correction, reducing uncorrectable error rates by >100× compared to non-ECC EEPROMs-especially critical for data integrity after repeated thermal cycling and radiation exposure in automotive and industrial environments.
Is the M24128-DRDW8TP/K pin-compatible with earlier M24128-D series variants?
Yes-M24128-DRDW8TP/K shares identical TSSOP8 (DW) pinout, signal definitions, and I²C protocol behavior with M24128-DxxDWxx variants. Differences are limited to process enhancements and updated AEC-Q100 qualification; no PCB or firmware changes are required for drop-in replacement in existing designs.
M24128-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:
- 128Kbit
- Memory Organization:
- 16K 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
M24128-DRDW8TP/K FAQ
1.How can I place an order for M24128-DRDW8TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M24128-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 M24128-DRDW8TP/K reliable?
The price and inventory of M24128-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 M24128-DRDW8TP/K is usually 5 days.
3.What payment methods are accepted for M24128-DRDW8TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M24128-DRDW8TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M24128-DRDW8TP/K?
M24128-DRDW8TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M24128-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 M24128-DRDW8TP/K?
For technical support, including M24128-DRDW8TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M24128-DRDW8TP/K requirements.
6.How does Aetrix verify that M24128-DRDW8TP/K is sourced from the original manufacturer or authorized distributors?
All M24128-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 M24128-DRDW8TP/K meets industry standards.
7.What is the process for return or replacement of M24128-DRDW8TP/K?
All M24128-DRDW8TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M24128-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 M24128-DRDW8TP/K part is unused and in its original packaging.
Return procedure for M24128-DRDW8TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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