Features • Single 2.7V - 3.6V Supply • Serial .
AT45DB021E - SPI Serial Flash Memory
AT45DB021A - 2-megabit 2.7-volt Only Serial DataFlash
AT45DB021D - 2-megabit 2.7V Minimum DataFlash
AT45DB021D - 2-megabit 2.7-volt DataFlash
AT45DB021B - 2-megabit 2.7-volt Only DataFlash
AT45DB021 - 2-Megabit 2.7-volt Only Serial DataFlash