GENERAL DESCRIPTION
The EN25S20 is a 2 Megabit (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.

FEATURES
• Single power supply operation
    - Full voltage range: 1.65-1.95 volt
• Serial Interface Architecture
    - SPI Compatible: Mode 0 and Mode 3
• 2 M-bit Serial Flash
    - 2 M-bit/256 K-byte/1024 pages
    - 256 bytes per programmable page
• High performance
    - 75MHz clock rate
• Low power consumption
    - 7 mA typical active current
    - 1 μA typical power down current
• Uniform Sector Architecture:
    - 64 sectors of 4-Kbyte
    - 4 blocks of 64-Kbyte
    - Any sector or block can be erased individually
• Software and Hardware Write Protection:
    - Block Protect Bits are default set to “1” at Power-up
    - Write Protect all or portion of memory via software
    - Enable/Disable protection with WP# pin
• High performance program/erase speed
    - Page program time: 1.5ms typical
    - Sector erase time: 90ms typical
    - Block erase time 500ms typical
    - Chip erase time: 2 seconds typical
• Lockable 256 byte OTP security sector
• Minimum 100K endurance cycle
• Package Options
    - 8 pins SOP 150mil body width
    - 8 contact USON 2x3 mm
    - 8 contact VDFN 5x6mm
    - All Pb-free packages are RoHS compliant
• Industrial temperature Range