1 PCS DS1338Z-33+ SOP-8 DS133833 SMD I2C RTC with 56-Byte NV RAM IC Chip | eBay
256 x 8-bit static low-voltage RAM with I2C-bus interface
Embedis: I2C FRAM Keystore - Hackster.io
How to hack into PC's I2C bus to add new devices - YouTube
Adafruit I2C Non-Volatile Ferroelectric Ram Breakout - 256Kbit / 32KByte for 3V or 5V Power and Logic or FRAM Storage to DIY Project 1895: Amazon.co.uk: Computers & Accessories
10 PCS DS1338Z-33+ SOP-8 DS133833 I2C RTC with 56-Byte NV RAM new | eBay
arduino uno - Reading RAM from SH1106 OLED Controller through I2C - Arduino Stack Exchange