GENERAL DESCRIPTION

The EN25P20 is a 2M-bit (256K-byte) 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 EN25P20 is designed to allow either single Sector at a time or full chip erase operation. The EN25P20 can be configured to protect part of the memory as the software protected mode. The device can sustain a minimum of 100K program/erase cycles on each sector.

FEATURES

? Single power supply operation

- Full voltage range: 2.7-3.6 volt

? 2 Mbit Serial Flash

- 2 M-bit/256 K-byte/1024 pages

- 256 bytes per programmable page

?High performance

- 100MHz clock rate

? Low power consumption

- 5 mA typical active current

- 1 μA typical power down current

? Uniform Sector Architecture:

- Four 64-Kbyte sectors

? Software and Hardware Write Protection:

- Write Protect all or portion of memory via software

- Enable/Disable protection with WP# pin