GENERAL DESCRIPTION
The EN25S16 is a 16 Megabit (2048K-byte) Serial Flash memory, with advanced write protection mechanisms. The EN25S16 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
• 16 M-bit Serial Flash
- 16 M-bit / 2048 KByte /8192 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