AT28C64-25PC – ATMEL

The AT28C64-25PC is a 64-kilobit (8K x 8) Electrically Erasable and Programmable Read-Only Memory (EEPROM) integrated circuit manufactured by Atmel. This device features a parallel interface for data access and utilizes a 28-pin Dual In-line Package (DIP) for through-hole mounting. The -25 suffix denotes a specified maximum access time of 250 nanoseconds, indicating its read speed performance. The AT28C64 operates on a single 5V power supply and offers in-system programmability, allowing for data modification without removal from the circuit. It employs a floating gate architecture for non-volatile data storage, providing data retention for extended periods. The device incorporates features such as page write mode for faster programming and a data polling mechanism to signal the completion of write operations. It is typically used for storing configuration data, firmware, and other non-volatile information in embedded systems.