GENERAL DESCRIPTION
   The EN25LF40 is a 4M-bit (512K-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: 2.3-3.6 volt
• Serial Interface Architecture
   - SPI Compatible: Mode 0 and Mode 3
• 4 Mbit Serial Flash
   - 4 M-bit/512 K-byte/2048 pages
   - 256 bytes per programmable page
• High performance
   - 75MHz clock rate
• Low power consumption
   - 12 mA typical active current
   - 1 mA typical power down current
• Uniform Sector Architecture:
   - 128 sectors of 4-Kbyte
   - 8 blocks of 64-Kbyte
   - Any sector or block can be
      erased individually
• Software and Hardware Write Protection:
   - Write Protect all or portion of memory via
      software
   - Enable/Disable protection with WP# pin
• High performance program/erase speed
   - Page program time: 1.3ms typical
   - Sector erase time: 90ms typical
   - Block erase time 500ms typical
   - Chip erase time: 3.5 seconds typical
• Lockable 256 byte OTP security sector
• Minimum 100K endurance cycle
• Package Options
   - 8 pins SOP 150mil body width
   - 8 pins SOP 200mil body width
   - 8 contact VDFN
   - 8 pins PDIP
   - All Pb-free packages are RoHS compliant
• Industrial temperature Range