Family of Serial Flash Memories
W25X40CL: 4M-bit/512K-byte (524,288)
256-bytes per programmable page
Uniform erasable 4KB, 32KB & 64KB regions.
SPI with Single / Dual Outputs / I/O
Standard SPI: CLK, /CS, DI, DO, /WP, /Hold
Dual SPI: CLK, /CS, IO0, IO1, /WP, /Hold
Data Transfer up to 208M-bits / second
Clock operation to 104MHz
208MHz equivalent Dual SPI
Auto-increment Read capability
Efficient “Continuous Read Mode”
Low Instruction overhead
Continuous Read
As few as 16 clocks to address memory
Allows true XIP (execute in place) operation
Flexible Architecture with 4KB sectors
Uniform Sector/Block Erase (4/32/64-kbytes)
Page program up to 256 bytes <1ms
More than 100,000 erase/write cycles
More than 20-year data retention
Low Power, Wide Temperature Range
Single 2.3V to 3.6V supply
1mA active current, <1μA Power-down(typ.)
-40° to +85°C operating range
Space Efficient Packaging
8-pin SOIC 150-mil / VSOP 150-mil
8-pin SOIC 208-mil
8-pin PDIP 300-mil
8-pad WSON 6x5-mm
8-pad USON 2x3-mm
8-pin PDIP 300-mil

4M-bit 2.5V Serial Flash Memory with uniform 4KB sectors and Dual SPI.

Single/Dual SPI
UID & OTP Feature
2.3V to 3.6V Vcc Range
Volatile & Non-Volatile SR
Erase/Program Suspend & Resume