Datasheet

o Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-
down, Standby, and Extended Standby
o Software Selectable Clock Frequency
o ATmega103 Compatibility Mode Selected by a Fuse
o Global Pull-up Disable
– I/O and Packages
o 53 Programmable I/O Lines
o 64-lead TQFP and 64-pad MLF
– Operating Voltages
o 4.5 - 5.5V for ATmega128
– Speed Grades
o 0 - 16 MHz for ATmega128
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