The AT27C256-30DI is a high-performance 256K (32K x 8) UV EPROM with 3-volt operating voltage. It features fast read access time of 45ns, making it suitable for use in applications that demand high-speed performance. This EPROM also offers a low-power dissipation, making it an energy-efficient solution for your design needs. The AT27C256-30DI is housed in a 28-pin DIP package, allowing for easy integration into existing circuit designs. Its advanced programming technology ensures reliable and secure data storage. The device is also capable of withstanding harsh environmental conditions, making it suitable for use in a wide range of industrial and commercial applications. With its combination of high performance, low power consumption, and robust design, the AT27C256-30DI is the ideal choice for engineers and designers looking for a reliable and efficient UV EPROM solution.