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
What are the key features of M24C64-RDW6?
- 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
What is M24C64-RDW6 used for?
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.
What are the specifications of M24C64-RDW6?
| 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 |
Where can I find the M24C64-RDW6 datasheet?
M24C64-RDW6 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M24C64-RDW6?
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.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit