NM25C040 Overview
The NM25C040 is a 4096-bit CMOS EEPROM with an SPI patible serial interface. The NM25C040 is designed for data storage in applications requiring both non-volatile memory and insystem data updates. This EEPROM is well suited for applications using the 68HC11 series of microcontrollers that support the SPI interface for high speed munication with peripheral devices via a serial bus to reduce pin count.