The AT29C257-20DC is a 256K (32,768 x 8) 5-volt only (5V ±10%) Flash memory chip. Featuring a 200ns access time, it offers high-speed performance for applications requiring fast read and write operations. The device supports Byte-by-Byte and Page-Mode writes for efficient and flexible data storage. With its low power consumption and high reliability, the AT29C257-20DC is an ideal solution for a wide range of applications including automotive, industrial, and consumer electronics. Its compatibility with standard EPROM programmers enables easy integration into existing systems, while its small form factor and durable construction make it suitable for harsh environmental conditions. With its high-speed performance, low power consumption, and reliable operation, the AT29C257-20DC is a versatile and dependable choice for designers and manufacturers looking to enhance their products with advanced Flash memory technology.