Fm24clxx Fram Board Fm24 F-ram Serial Board With I2c Interface Fm24cl On Board - Demo Board - AliExpress
2 PCS DS1338Z-33+ SOP-8 DS133833 I2C RTC with 56-Byte NV RAM Chip IC | eBay
CYPRESS SEMICONDUCTOR FM24V02A-G FM24V02A Series 256 Kb (32 K x 8) 3.6 V SMT Serial (I2C) F-RAM - SOIC-8-97 item(s): Amazon.com: Industrial & Scientific
Adafruit I2C Non-Volatile FRAM Breakout - 256Kbit / 32KByte : ID 1895 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Overview | Adafruit I2C FRAM Breakout | Adafruit Learning System