Description

The M45PE40 is a 4 Mbit (512 K x 8 bit) Serial Paged Flash Memory accessed by a high speed SPI-compatible bus. The memory can be written or programmed 1 to 256 bytes at a time, using the Page Write or Page Program instruction. The Page Write instruction consists of an integrated Page Erase cycle followed by a Page Program cycle.

Features

■ SPI bus compatible serial interface

■ 50 MHz clock rate (maximum)

■ 2.7 V to 3.6 V single supply voltage

■ 4 Mbits of Page-Erasable Flash memory

■ Page size: 256 bytes:

– Page Write in 11 ms (typical)

– Page Program in 0.8 ms (typical)

– Page Erase in 10 ms (typical)

■ Sector Erase (64 Kbytes)

■ Hardware Write protection of the bottom sector (64 Kbytes)

■ Electronic Signature

– JEDEC standard two-byte signature (4013h)

■ Deep Power-down Mode 1μA (typical)

■ More than 100 000 Write cycles

■ More than 20 years’ data retention

■ Packages

– ECOPACK? (RoHS compliant)