Description
The is a 4 Mbit (512Kb × 8 bit) Serial Paged Flash memory accessed by a high speed SPIcompatible 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
■ 4 Mbit 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)
■ SubSector Erase (4 Kbytes)
■ Sector Erase (64 Kbytes)
■ Bulk Erase (4 Mbits)
■ 2.7 V to 3.6 V single supply voltage
■ 50 MHz clock rate (maximum)
■ Deep Power-down mode 1 µA (typical)
■ Electronic Signature
– JEDEC standard two-byte signature(8013h)
■ Software Write Protection on a 64 Kbyte sector basis
■ Hardware Write Protection of the memory area selected using the BP0, BP1 and BP2 bits
■ More than 100 000 Write cycles
■ More than 20 year data retention
■ Packages
– ECOPACK® (RoHS compliant)