Datasheet

– Two Programmable Serial USARTs
– Two Master/Slave SPI Serial Interfaces
– Two Byte-Oriented Two-Wire Serial Interfaces (Philips I
2
C Compatible)
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-Chip Analog Comparator
– Interrupt and Wake-Up on Pin Change
• Special Microcontroller Features
– Power-On Reset and Programmable Brown-Out Detection
– Internal 8 MHz Calibrated Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended
Standby
– Clock Failure Detection Mechanism and Switch to Internal 8 MHz RC Oscillator in case of Failure
– Individual Serial Number to Represent a Unique ID
• I/O and Packages
– 27 Programmable I/O Lines
– 32-pin TQFP and 32-pin QFN /MLF
• Operating Voltage:
– 1.8 - 5.5V
• Temperature Range:
– -40°C to 105°C
• Speed Grade:
– 0 - 4 MHz @ 1.8 - 5.5V
– 0 - 10 MHz @ 2.7 - 5.5V
– 0 - 20 MHz @ 4.5 - 5.5V
• Power Consumption at 1 MHz, 1.8V, 25°C
– Active Mode: 0.24 mA
– Power-Down Mode: 0.2 μA
– Power-Save Mode: 1.3 μA (Including 32 kHz RTC)
ATmega328PB
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001906C-page 2