The AT28C256-45DI is a high-performance, low-power 256K (32K x 8) CMOS EPROM. It features a fast read access time of 45ns, making it ideal for applications requiring high speed and reliability. The AT28C256-45DI operates on a single 5V power supply and has a low standby current, making it suitable for battery-operated devices. This EPROM offers a flexible and easy-to-use interface for programming and erasing, with a simple command architecture. It also has a durable and reliable design, with a minimum of 100,000 erase/write cycles and a data retention period of over 100 years. The AT28C256-45DI is well-suited for a wide range of applications, including embedded systems, automotive electronics, telecommunications, industrial controls, and more. With its high performance, low power consumption, and long-term reliability, the AT28C256-45DI is an excellent choice for designers and engineers looking for a dependable and efficient EPROM solution.