The CAT28C16AX20 is an EEPROM memory chip manufactured by Catalyst Semiconductor Inc. It is a parallel, surface-mount device with a SO24 package and 5V operating voltage. This chip features a temperature range from 0 to 70°C and provides 16K bits of nonvolatile memory. It features an endurance of 1000 write/erase cycles and a data retention of 10 years. This device is ideal for low voltage microcontroller-based systems, such as embedded controllers, alarm systems, and wireless sensor applications.