24LC256 in 24LCxx / AT24Cxx I2C EEPROM Family
The 24LC256 is a popular 256-Kbit I2C serial Electrically Erasable PROM (EEPROM) family manufactured by Microchip Technology. Organized as 32K x 8 bits, this non-volatile memory solution is designed for low-power applications requiring reliable data storage. It operates across a wide voltage range and utilizes a standard two-wire serial interface, making it a staple for storing configuration settings, calibration constants, and user preferences in resource-constrained embedded systems and consumer electronics.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Stock |
|---|---|---|
| 24LC256 (Microchip Technology) | SOIC-8 | 10,248 |
| 24LC256-I/P (Microchip) | DIP-8 | 9,125 |
| 24LC256-I/SN (Microchip) | SOIC-8 | 10,502 |
Variants within the 24LC256 family primarily differ in their physical packaging and operating temperature ratings. Common packages include 8-lead PDIP, SOIC, TSSOP, and DFN (MF). Temperature grades range from industrial (-40°C to +85°C) to extended (-40°C to +125°C). While the logic remains identical, certain suffixes like 24AA256 denote lower minimum voltage operation (1.7V) compared to the standard 2.5V LC series.
