ST ST90T40C6 PLCC-68 16K ROM HCMOS MCU WITH EEPROM RAM RH | eBay
CENTRAL DATA CD21/2035 EPROM/RAM/EEPROM BOARD NEW CONDITION NO BOX | eBay
EEPROM Online Store | Future Electronics
1PCS ST90R40C6R 16K ROM HCMOS MCU WITH EEPROM, RAM AND A/D CONVERTER PLCC68 | eBay
24C04 (2-Wire Serial EEPROM 4K (512 x 8)) - RAM Electronics
Infineon Launches Rad-Hard Serial Interface F-RAM
Hackster.io on Twitter: "This Arduino Mega EEPROM programmer board doubles as a RAM upgrade: https://t.co/x6jDnMlFcL https://t.co/8bSKhDis6x" / Twitter