NM25C040 Datasheet (Fairchild) - 4K-Bit Serial CMOS EEPROM (Serial Peripheral Interface (SPI) Synchronous Bus)

NM25C040, 4K-Bit Serial CMOS EEPROM (Serial Peripheral Interface (SPI) Synchronous Bus)

The NM25C040 is a 4096-bit CMOS EEPROM with an SPI compatible 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

NM25C040 Features

* s 2.1 MHz clock rate @ 2.7V to 5.5V s 4096 bits organized as 512 x 8 s Multiple chips on the same 3-wire bus with separate chip select lines s Self-timed programming cycle s Simultaneous programming of 1 to 4 bytes at a time s Status register can be polled during programming to monitor READY/BUSY s