25LC256 in 25LCxx / AT25 SPI EEPROM Family
The 25LC256 family consists of high-performance 256 Kbit serial Electrically Erasable PROMs (EEPROM) manufactured primarily by Microchip Technology. These devices utilize the Serial Peripheral Interface (SPI) bus, supporting clock frequencies up to 10 MHz. They are designed for applications requiring frequent non-volatile data storage with high endurance and reliable retention, typically operating within a broad voltage range from 2.5V to 5.5V, making them suitable for diverse embedded architectures.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Clock Frequency | Temp Range | Write Cycle Time - Word, Page | Stock |
|---|---|---|---|---|
| 25LC256-I/SN (Microchip Technology) | 10 M | -40degC ~ 85degC (.. | 5m | 6,642 |
| 25LC256 (Microchip Technology) | 5 M | -40degC ~ 150degC .. | 6m | 2,912 |
Variants within the 25LC256 family primarily differ in their physical packaging and operational temperature ratings. Options include 8-lead PDIP, SOIC, TSSOP, and DFN packages to accommodate different space constraints. Additionally, variants like the 25LC256-I provide an industrial temperature range (-40 to +85 Celsius), while the 25LC256-E extends this for automotive or harsh industrial environments up to +125 Celsius.
