NM25C640 - 64K-Bit Serial CMOS EEPROM (Serial Peripheral Interface (SPI) Synchronous Bus)

Product Overview

Fairchild

Part number	NM25C640
Manufacturer	Fairchild
File Size	93.93 KB
Description	64K-Bit Serial CMOS EEPROM (Serial Peripheral Interface (SPI) Synchronous Bus)
Datasheet	NM25C640 Datasheet
Additional preview pages of the NM25C640 datasheet.

The NM25C640 is a 65,536-bit CMOS EEPROM with an SPI compatible serial interface.

s 2.75 MHz clock rate @ 4.5V to 5.5V 2.1 MHz @ 2.7V to 4.5V s 65,536 bits organized as 8,192 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 32 bytes at a time s Status register can be polled during programming to monitor READY/BUSY s Write Protect (WP) pin and write disable instruction for both hardware and software write protection s Block write protect feature to protect against accidental writes s E.

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Published: May 7, 2005 |