AT45DB041 Features • Single 2.7V - 3.6V Supply .
AT45DB041E - 1.65V Minimum SPI Serial Flash Memory
AT45DB041D - 4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041B - 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash
AT45DB041 - 4-Megabit 2.7-volt Only Serial DataFlash
45DB041B - 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash
AT45DB041A - 4-megabit 2.5-volt Only Serial DataFlasH
45DB041 - AT45DB041