4 New Features

This chapter summarizes the enhancements or added features in ATmega48PB/88PB/168PB compared with ATmega48/88/168.

USART Start Frame Detection is available in all sleep modes
Analog Comparator output is available on a pin. (This pin is multiplexed with PE0.)
Serial Number (Unique Device ID)
picoPower
ADC Temperature Measurement

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