GENERAL DESCRIPTION
The W25X10BL (1M-bit), W25X20BL (2M-bit) and the W25X40BL (4M-bit) Serial Flash memories provides 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 2.3V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-saving packages.

FEATURES
• Family of Serial Flash Memories
– W25X10BL: 1M-bit/128K-byte (131,072)
– W25X20BL: 2M-bit/256K-byte (262,144)
– W25X40BL: 4M-bit/512K-byte (524,288)
– 256-bytes per programmable page
– Uniform 4KB Sectors, 32KB & 64KB Blocks
• SPI with Single / Dual Outputs / Dual I/O
– Clock, Chip Select, Data I/O, Data Out
– Optional Hold function for SPI flexibility
• Data Transfer up to 100M-bits / second
– Clock operation to 50MHz
– Fast Read Dual Output instruction
– Auto-increment Read capability
• Efficient “Continuous Read Mode”
– Low Instruction overhead
– Continuous Read
– As few as 8 clocks to address memory
– Allows true XIP (execute in place) operation
• Software and Hardware Write Protection
– Write-Protect all or portion of memory
– Enable/Disable protection with /WP pin
– Top or bottom array protection
– Volatile & Non-volatile Status Register Bits
• Flexible Architecture with 4KB sectors
– Sector Erase (4K-bytes)
– Block Erase (32K and 64K-byte)
– Page program up to 256 bytes <1ms
– More than 100,000 erase/write cycles
– More than 20-year retention
• Low Power Consumption, Wide
Temperature Range
– Single 2.3 to 3.6V supply
– 4mA active current, 1µA Power-down (typ)
– -40° to +85°C operating range
• Space Efficient Packaging
– 8-pin SOIC 150-mil
– 8-pin SOIC 208-mil
– 8-pad WSON 6x5-mm
– 8-pin PDIP 300-mil