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Summary description

The M25P20 is a 2 Mbit (256K x 8) Serial Flash Memory, with advanced write protection mechanisms, accessed by a high speed SPI-compatible bus.

The memory can be programmed 1 to 256 bytes at a time, using the Page Program instruction.

The 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 whole memory can be erased using the Bulk Erase instruction, or a sector at a time, using the Sector Erase instruction.

Feature summary

■ 2 Mbit of Flash Memory

■ Page Program (up to 256 Bytes) in 1.4ms (typical)

■ Sector Erase (512 Kbit) in 1s (typical)

■ Bulk Erase (2 Mbit) in 3s (typical)

■ 2.7 to 3.6V Single Supply Voltage

■ SPI Bus Compatible Serial Interface

■ 50MHz Clock Rate (maximum)

■ Deep Power-down Mode 1μA (typical)

■ Electronic Signatures

– JEDEC Standard two-Byte Signature (2012h)

– RES Instruction, One-Byte, Signature (11h), for backward compatibility

■ Packages

– ECOPACK? (RoHS compliant)