The AM27C400-150DMB is a 4-megabit ultraviolet erasable programmable read-only memory (EEPROM) device. It offers a high-performance and cost-effective solution for storing and retrieving critical system data and software code. With a 150ns access time, this device provides fast operation for demanding applications. The AM27C400-150DMB's 5V operation and wide operating temperature range make it suitable for a variety of industrial, automotive, and consumer electronics products. Its DIP package and easy-to-use programming interface make it simple to integrate into existing designs. This EEPROM device also features a high level of reliability and endurance, supporting up to 100,000 program/erase cycles and a data retention period of at least 20 years. Its low power consumption and advanced protection features ensure data integrity and secure operation. Whether used for firmware storage, configuration data, or code storage, the AM27C400-150DMB is a dependable and versatile memory solution for various embedded systems and applications.