M24C64-RDW6 STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The M24C64-RDW6 is a 64 Kbit (8 KB) I2C serial EEPROM from STMicroelectronics featuring up to 400 kHz clock, 1 million write-endurance cycles, and 40-year data retention in an 8-pin TSSOP package. It is ideal for non-volatile parameter storage in consumer and industrial embedded systems.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- M24C64-RDW6 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 Kbit (8 KB) I2C EEPROM with up to 400 kHz clock frequency and hardware write-protect pin
- 1,000,000 write/erase cycle endurance with 40-year minimum data retention at 85 °C
- Compact 8-pin TSSOP package (169 mil width) supporting 1.8 V to 5.5 V supply for broad system compatibility
Applications
The M24C64-RDW6 is used in consumer electronics, smart meters, and IoT edge nodes that require reliable non-volatile storage for calibration data, configuration tables, and device identifiers. Its I2C interface at up to 400 kHz allows straightforward integration with virtually any microcontroller, minimizing GPIO pin usage. Industrial automation and medical device designs benefit from its 40-year data retention and 1 million write cycle endurance, ensuring long-term field reliability.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 40 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Memory Density | 65536bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 8192words |
| Number of Words Code | 8000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 8KX8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 2e-7 A |
| Supply Current-Max | 0.0008mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 10ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for M24C64-RDW6:
Frequently Asked Questions
What is the write endurance and data retention of the M24C64-RDW6, and how does this compare to typical EEPROM requirements?
The M24C64-RDW6 guarantees 1,000,000 write/erase cycles and a minimum data retention of 40 years at 85 °C. Most industrial embedded designs require fewer than 100,000 write cycles for parameter storage, so this device comfortably exceeds typical requirements and suits applications with frequent configuration updates.
Which supply voltage range does the M24C64-RDW6 support, and is it compatible with both 3.3 V and 5 V microcontrollers?
The M24C64-RDW6 operates from 1.8 V to 5.5 V, making it directly compatible with 3.3 V and 5 V microcontroller I2C buses. No level-shifting is needed for the most common embedded supply rails, which simplifies board design and reduces component count in cost-sensitive products.
How does the I2C address scheme of the M24C64-RDW6 allow multiple devices on the same bus?
The M24C64-RDW6 uses a 7-bit I2C address with the format 1010DDD, where the 3 hardware address pins (A0, A1, A2) set the lower 3 bits. This lets up to 8 M24C64 devices share a single I2C bus, providing 64 KB x 8 = 512 KB of addressable non-volatile storage without adding a bus multiplexer.
For a compact wearable sensor design, what board footprint does the 8-pin TSSOP package of the M24C64-RDW6 require?
The 8-pin TSSOP (169 mil / 4.4 mm body width) has a package footprint of approximately 6.4 mm x 4.4 mm with a 0.65 mm lead pitch, which is small enough for densely populated wearable or IoT sensor PCBs. The low package height of about 1.2 mm also accommodates slim form-factor designs with tight Z-axis clearance constraints.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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