24LC64-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
24LC64-I/MS is a 64 Kbit (8 KB) I2C Serial EEPROM from Microchip in an MSOP-8 package, supporting 400 kHz Fast-mode I2C and up to 1,000,000 write/erase cycles with 200-year data retention. It operates from 2.5 V to 5.5 V with hardware write-protect. Available RoHS-compliant with worldwide distribution.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24LC64-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3050(MOQ 3)
- 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) byte-addressable I2C EEPROM with 400 kHz Fast-mode clock support
- 1,000,000 write/erase cycle endurance with 200-year data retention for long-life embedded storage
- 2.5 V to 5.5 V wide supply range compatible with both 3.3 V and 5 V microcontroller systems
- Compact MSOP-8 package with hardware write-protect pin for critical configuration data security
Applications
24LC64-I/MS is ideal for storing calibration data, configuration parameters, and firmware settings in embedded systems such as industrial sensors, smart meters, and IoT edge nodes. Its 400 kHz I2C interface integrates directly with microcontrollers like PIC, AVR, and STM32 without additional level-shifting when operating from a 3.3 V rail. The MSOP-8 package suits compact PCB designs in medical wearables and automotive infotainment modules requiring non-volatile data retention across power cycles.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 24Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 0.4MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| I2C Control Byte | 1010DDDR |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 65536bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 8192words |
| Number of Words Code | 8000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 8KX8 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 4.5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.003mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 24LC64-I/MS:
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Frequently Asked Questions
How many bytes can the 24LC64-I/MS store, and what I2C clock speed does it support?
The 24LC64-I/MS provides 64 Kbits (8,192 bytes) of byte-addressable EEPROM storage and supports I2C clock frequencies up to 400 kHz in Fast-mode. This allows a complete 8 KB read or page write to complete in under 25 ms, suitable for real-time data logging in embedded sensor applications.
How long will data stored in the 24LC64-I/MS last without power, and how many write cycles are guaranteed?
Microchip guarantees a minimum data retention of 200 years for the 24LC64-I/MS, along with an endurance of 1,000,000 write/erase cycles per byte location. These figures make it suitable for configuration or calibration storage in industrial equipment that undergoes frequent updates over a 20-year service life.
Which microcontroller families can directly interface with the 24LC64-I/MS on a 3.3 V board?
The 24LC64-I/MS operates from 2.5 V to 5.5 V, allowing direct connection to 3.3 V microcontrollers such as STM32, nRF52, ESP32, and Microchip PIC32 series without level translators. Its 8-pin MSOP footprint occupies less than 15 mm2 of board area, making it straightforward to add non-volatile storage to any I2C-capable design.
When should a designer choose the 24LC64-I/MS over a larger 24LC256 EEPROM?
The 24LC64-I/MS is the better choice when the application requires 8 KB or less of non-volatile storage and cost or board space is constrained, since the 64 Kbit device costs approximately 30–40% less than the 256 Kbit 24LC256. For firmware configuration tables, trim values, or device identity records that total under 4 KB, the 24LC64 offers adequate capacity with the same 400 kHz I2C interface.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3+ | $0.5630 | $1.69 |
| 25+ | $0.5500 | $13.75 |
| 100+ | $0.5065 | $50.65 |
| 300+ | $0.3250 | $97.50 |
| 750+ | $0.3150 | $236.25 |
| 1500+ | $0.3050 | $457.50 |
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