A 308 KB PDF on the 24C164 serial EEPROM, a 16 Kbit I2C device that, unlike the plain 24C16, uses its address pins for cascading several chips on one bus.

PDF reference, 274 KB, for the 24C164, a cascadable 16 Kbit two-wire serial EEPROM. The file sits in the schematic category but is essentially part documentation with…