The MICROCHIP TECH. part AT27C020-55PU is an EPROM (Erasable Programmable Read-Only Memory) IC that offers a one-time programmable solution perfect for applications where the data needs to be permanently stored. With a capacity of 2Mbit (256K x 8), this IC provides ample memory space for storing critical data. The AT27C020-55PU operates with a fast access time of 55ns, ensuring efficient and speedy data retrieval. It comes in a 32-pin PDIP W package and is supplied in a protective tube for safe transportation and storage. This EPROM IC offers reliable and secure non-volatile memory storage, making it ideal for a wide range of applications in various industries.