2 Enhancement and Additional Features in ATmega328PB

Compared to existing ATmega328 variants, the following enhancements or additional features are available in ATmega328PB:

• PTC - Peripheral Touch Controller.
• CFD - Clock Failure Detection mechanism.
• OCM1C2 - Output Compare Modulator.
• USART start frame detection is available in all sleep modes
• Analog Comparator output is available on a pin. This pin is multiplexed with PE0.
• Unique device ID to identify the device
• Additional USART
• Additional SPI
• Additional TWI
• Additional Timer/Counters