CAT24C32WI in 24LC/24AA/AT24 EEPROM Family
The CAT24C32WI family, originally developed by Catalyst Semiconductor and now part of the ON Semiconductor portfolio, consists of 32-Kbit serial CMOS EEPROMs organized as 4,096 words of 8 bits each. These devices utilize the I2C protocol and are designed for low-power, low-voltage applications. They are widely integrated into consumer electronics, industrial controllers, and communication hardware where reliable non-volatile storage is required for configuration data and calibration parameters in a space-efficient SOIC-8 package.
Variants in This Sub-Family
Variants within the CAT24C32 series primarily differ by their packaging type, temperature ratings, and tape-and-reel specifications. For example, the GT3 suffix denotes a specific lead-free finish and packaging format for high-volume automated assembly. Some variants may also offer different speed grades or extended industrial temperature ranges (-40C to +85C) to suit harsh environments, though the core I2C instruction set and internal memory architecture remain consistent across the sub-family.




