Production date is sometime in 1994/1995 on the unit itself if that helps narrow it down. On Saturday, February 17, 2018, andrew kelley wrote= : > Chip says > "Toshiba TC97208AP > Japan 4F1518" > > This is indeed out of a ChryCo vehicle. I've got one modified with a atme= l > eeprom that will program in circuit, without much more than serial cable > and switch to bootstrap the hc11... Managed to get the st flash version > working, just this chip eludes erasing and programming. I've seen almost > every page on the internets with that part number on it that gargoyle wou= ld > turn up. > > Thanks for your help. > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .