24AA64-I/SM Microchip Integrated Circuit (Small Outline Packages) In Stock
The 24AA64-I/SM is a 64 Kbit I2C serial EEPROM from Microchip with 400 kHz bus speed, 1 million write/erase endurance cycles, and 200-year data retention minimum. Available in an 8-pin SOIJ package, it is RoHS-compliant and in stock worldwide.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 24AA64-I/SM 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 400 kHz Fast Mode I2C interface enabling reliable non-volatile data storage in space-constrained embedded designs
- 1,000,000 write/erase cycle endurance with a minimum 200-year data retention rating for high-reliability configuration and calibration storage
- I2C address byte 1010DDDR supporting up to 8 devices on a single 2-wire bus for scalable multi-chip memory arrays
Applications
The 24AA64-I/SM is widely used in embedded systems for storing calibration data, configuration parameters, and user settings accessed over I2C by microcontrollers such as PIC, AVR, and ARM Cortex-M devices. Its 1 million write cycle endurance and 200-year retention make it suitable for industrial meters, medical devices, and IoT sensor nodes where data integrity over the product lifetime is critical.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIJ-8 |
| Factory Lead Time | 23Weeks |
| 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 | R-PDSO-J8 |
| 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 | SOP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 2.5V |
| 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) | 1.7V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | J BEND |
| Terminal Pitch | 1.27mm |
| 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 24AA64-I/SM:
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
How many bytes of data can the 24AA64-I/SM store and at what I2C clock speed?
The 24AA64-I/SM provides 64 Kbits (8,192 bytes) of non-volatile EEPROM storage and supports I2C communication at up to 400 kHz in Fast Mode. This combination allows a microcontroller to read or write full pages of calibration or configuration data quickly over the standard 2-wire I2C bus.
How many 24AA64-I/SM devices can share the same I2C bus?
Up to 8 individual 24AA64-I/SM devices can be addressed on the same I2C bus using the 3 hardware address bits (bits D2-D0 in the I2C control byte 1010DDDR). This allows a total addressable EEPROM capacity of 512 Kbits (64 KB) from a single 2-wire I2C interface, useful in data logging and multi-zone configuration storage applications.
What is the endurance and data retention specification of the 24AA64-I/SM?
The 24AA64-I/SM is rated for 1,000,000 write/erase cycles per memory cell, ensuring long service life in applications with frequent configuration updates. Data retention is specified at a minimum of 200 years at room temperature, providing high reliability for industrial and medical applications where stored calibration or security data must persist over the product's entire operational lifespan.
Is the 24AA64-I/SM a suitable drop-in replacement for the AT24C64 EEPROM?
Yes, the Microchip 24AA64-I/SM is pin-compatible and functionally equivalent to the Atmel/Microchip AT24C64. Both are 8-pin 64 Kbit I2C EEPROMs operating at 400 kHz with identical I2C address structure, making the 24AA64-I/SM a direct drop-in replacement without firmware or hardware changes in most embedded system designs.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
PIC16LF88-I/SS
Small Outline Packages
Integrated Circuit
25AA02E48-I/SN
Small Outline Packages
Integrated Circuit
PIC18F1220-I/SO
Small Outline Packages
Integrated Circuit
MIC5319-1.8YD5-TR
SOT23 (5-Pin)
Integrated Circuit
dsPIC33FJ256GP710A-I/PT
Quad Flat Packages
Integrated Circuit
BM70BLES1FC2-0B03AA
Other
Integrated Circuit
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”