AT25040B in 25LCxx / AT25 SPI EEPROM Family
The AT25040B is a high-performance 4-Kbit Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) family from Microchip Technology. Designed for industrial and commercial applications, it utilizes a standard Serial Peripheral Interface (SPI) to provide high-speed data transfers. The family is optimized for low-power operation and high reliability, supporting up to 1,000,000 write cycles and data retention exceeding 100 years, making it a staple for non-volatile configuration and parameter storage in embedded systems.
Variants in This Sub-Family
Variants within the AT25040B series are primarily differentiated by their packaging options and operating temperature ranges. Available packages include 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, and 8-ball VFBGA to suit various PCB density requirements. Further distinctions include the automotive-grade qualifications (AEC-Q100) and different finish types like Lead-Free/Halogen-Free (NiPdAu or Matte Tin) for compliance with environmental standards such as RoHS.
