M25PE20

The M25PE20 and M25PE10 are 2 Mbit (256K x 8 bit) and 1 Mbit (128K x8 bit) Serial Paged Flash Memories, respectively. They are accessed by a high speed SPI-compatible bus.

The memories 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.

The M25PE20 memory is organized as 4 sectors, each containing 256 pages. Each page is 256  Bytes wide. Thus, the whole memory can be viewed as consisting of 1024 pages, or 262,144 Bytes.

The M25PE20 memory is organized as 2 sectors, each containing 256 pages. Each page is 256 Bytes wide. Thus, the whole memory can be viewed as consisting of 512 pages, or 131, 072 Bytes.

The memories M25PE20 can be erased a page at a time, using the Page Erase instruction, or a sector at a time, using the Sector Erase instruction. The top sector of the memories can be Write Protected by Hardware (TSL).

In order to meet environmental requirements M25PE20, ST offers these devices in ECOPACK® packages. ECOPACK^® packages are Lead-free and RoHS compliant.

ECOPACK M25PE20 is an ST trademark. ECOPACK specifications are available at: www.st.com.