GENERAL DESCRIPTION
The W25X10A (1M-bit), W25X20A (2M-bit), W25X40A (4M-bit) and W25X80A (8M-bit) Serial Flash memories provide a storage solution for systems with limited space, pins and power. The 25X series offers flexibility and performance well beyond ordinary Serial Flash devices. They are ideal for code download applications as well as storing voice, text and data. The devices operate on a single 2.7V to 3.6V power supply with current consumption as low as 5mA active and 1µA for power-down. All devices are offered in space-saving packages.

FEATURES
● Family of Serial Flash Memories
   – W25X10A: 1M-bit / 128K-byte (131,072)
   – W25X20A: 2M-bit / 256K-byte (262,144)
   – W25X40A: 4M-bit / 512K-byte (524,288)
   – W25X80A: 8M-bit / 1M-byte (1,048,576)
   – 256-bytes per programmable page
   – Uniform 4K-byte Sectors / 64K-byte Blocks
● SPI with Single or Dual Outputs
   – Clock, Chip Select, Data I/O, Data Out
   – Optional Hold function for SPI flexibility
● Data Transfer up to 200M-bits / second
   – Clock operation to 100MHz
   – Fast Read Dual Output instruction
   – Auto-increment Read capability
● Software and Hardware Write Protection
   – Write-Protect all or portion of memory
   – Enable/Disable protection with /WP pin
   – Top or bottom array protection
● Flexible Architecture with 4KB sectors
   – Sector Erase (4K-bytes)
   – Block Erase (64K-byte)
   – Page program up to 256 bytes <2ms
   – More than 100,000 erase/write cycles
   – More than 20-year data retention
● Low Power Consumption, Wide Temperature Range
   – Single 2.7 to 3.6V supply
   – 5mA active current, 1µA Power-down (typ)
   – -40° to +85°C operating range
● Space Efficient Packaging
   – 8-pin SOIC 150-mil(1)
   – 8-pin SOIC 208-mil (W25X40A/80A)
   – 8-pin PDIP 300-mil
   – 8-pad WSON 6x5-mm