Hi,
For write, the number of bytes written is don't care as the internal write is done in parallel of 512 bytes.
So whatever the number (1 to 512) you will have the same consumption.
Find below the estimated consumption of the device. Of course depending on your hardware ecosystem,the consumption may increase.
READ consumption@25°C@ 1.8V:
1 mA @ 40MHz
0.8 mA @ 10MHz
0.45 mA @ 1MHz
READ consumption@25°C@ 3.3V:
1.6 mA @ 80MHz
1.4 mA @ 40MHz
1.0 mA @ 10MHz
0.5 mA @ 1MHz
Page write consumption@25°C@ 1.8V:
range of 1 mA to 1.8 mA
Page write consumption@25°C@ 3.3V:
range of 1.2 mA to 2.3 mA
The product datasheet is availabile on st.com: here
BR
Pierre