supongo que estos datos de la memoria s25fl016a ya lo habeis leido pero por si no lo teneis

SPI Serial Flash Memory S25FL016A
S25FL016A


16 Megabit CMOS 3.0 Volt Flash Memory with 50 Mhz SPI Bus Interface




The S25FL016A device is a 3.0 Volt (2.7 V to 3.6 V) single power supply Flash memory device. S25FL016A consists of thirty-two sectors, each with 512 Kb memory.

SpecificationsDevice Architecture
Density 16Mb
Voltage 3 Volts
Interface Serial
Process Technology 200 nm MirrorBit™ technology
Bus Width x1
Sector Type Uniform
Basic Ordering Options
Clock Frequency 50 MHz

Package Options 16-pin SO
8-contact WSON
8-pin SO

Temperature Range -40°C to +85°C