GENERAL DESCRIPTION
The EN25S64 is a 64 Megabit (8,192K-byte) Serial Flash memory, with advanced write protection
mechanisms. The EN25S64 supports the standard Serial Peripheral Interface (SPI), and a high
performance Dual output as well as Dual, Quad I/O using SPI pins: Serial Clock, Chip Select, Serial DQ0(DI) and DQ1(DO), DQ2(WP#) and DQ3(NC). SPI clock frequencies of up to 80MHz are supported allowing equivalent clock rates of 160MHz for Dual Output and 320MHz for Quad Output when using the Dual/Quad Output Fast Read instructions. 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
• 64 M-bit Serial Flash
- 64 M-bit / 8,192 KByte /32,768 pages
- 256 bytes per programmable page
• Standard, Dual or Quad SPI
- Standard SPI: CLK, CS#, DI, DO, WP#
- Dual SPI: CLK, CS#, DQ0, DQ1, WP#
- Quad SPI: CLK, CS#, DQ0, DQ1, DQ2, DQ3
•High performance
- 104MHz clock rate for one data bit
- 80MHz clock rate for two data bits
- 80MHz clock rate for four data bits
•Burst Modes
- Continuous linear burst
- 8/16/32/64/128/256 linear burst with wrap around
• Low power consumption
- 12 mA typical active current
- 1μA typical power down current
• Uniform Sector Architecture:
- 2048 sectors of 4-Kbyte
- 128 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: 0.7ms typical  - Sector erase time: 40ms typical 
- Block erase time 300ms typical
- Chip erase time: 34 Seconds typical
• Write Suspend and Write Resume
• Lockable 512 byte OTP security sector
• Minimum 100K endurance cycle
•Package Options   - 8 pins VSOP 200mil body width 
- 8 contact VDFN
- All Pb-free packages are RoHS compliant
• Industrial temperature Range