:The CAT28C64BT13I-15 is an electrically erasable programmable read-only memory (EEPROM) device manufactured by Catalyst Semiconductor Inc. It features a parallel interface, an operating temperature range from -40°C to 85°C, and a 5V power supply. This EEPROM is mounted as a surface-mount device (SMD) in a tSSO28 case. It provides access to its 8Kx8 bits of memory by using two Chip Select (CS) pins to select between two 8Kbyte memory banks. The device also features Byte Select (BS) pins to enable individual byte writes, perform block erase, and enable sector protection. It is capable of uniform 4Kbyte and 8Kbyte block erase. The industry-standard micro-2 instruction set makes this EEPROM compatible with other memories.