Use the table below to calculate the additional current consumption for the different I/O peripherals in the various operating modes. Some peripherals will request the clock to be enabled when operating in STANDBY. Refer to the peripheral section for further information.
Operating Conditions:
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| Symbol | Description | Min. | Typ. | Max. | Units | Conditions |
| IDD_WDT | Watchdog Timer (WDT) | — | 490 | — | nA | 32.768 kHz Internal Oscillator |
| IDD_MVIO | Dual supply configuration, Multi-Voltage I/O (MVIO) | — | 500 | — | nA | |
| IDD_VREF | Voltage Reference (VREF) | — | — | — | μA | ADC0REF enabled, VREF = 2.048V |
| — | — | — | μA | ACREF enabled, VREF = 2.048V | ||
| — | — | — | μA | DACREF enabled, VREF = 2.048V | ||
| IDD_BOD | Brown-out Detector (BOD) | — | 20 | — | μA | Brown-out Detect (BOD) continuous, including bandgap |
| — | 1.3 | — | μA | BOD sampling @128 Hz, BODLEVEL3, including bandgap | ||
| — | 600 | — | nA | BOD sampling @32 Hz, BODLEVEL3, including bandgap | ||
| IDD_TCA | 16-bit Timer/Counter Type A (TCA) | — | 5.8 | — | μA | CLK_PER = HFOSC/4 = 1 MHz |
| IDD_TCB | 16-bit Timer/Counter Type B (TCB) | — | 2.7 | — | μA | |
| IDD_TCD | 12-bit Timer/Counter Type D (TCD) | — | — | — | μA | |
| IDD_RTC | Real-Time Counter (RTC) | — | 790 | — | nA | CLK_RTC = 32.768 kHz Internal Oscillator |
| IDD_OSCHF | Internal High-Frequency Oscillator (OSCHF) | — | 150 | — | µA | Internal Oscillator running at 4 MHz |
| IDD_XOSCHF | High Frequency Crystal Oscillator (XOSCHF) | — | 350 | — | μA | 20 MHz XTAL, CL = 15 pF |
| IDD_OSC32K | 32.768 kHz Internal Oscillator (OSC32K) | — | 350 | — | nA | |
| IDD_XOSC32K | 32.768 kHz Crystal Oscillator (XOSC32K) | — | 2.4 | — | μA | XOSC32K High Power, CL = 9 pF |
| — | 580 | — | nA | XOSC32K Low Power, CL = 9 pF | ||
| IDD_ADC | Analog-to-Digital Converter (ADC) | — | — | — | μA | ADC - Non-converting |
| — | 980 | — | μA | ADC @60 ksps(2) | ||
| — | 1.1 | — | mA | ADC @120 ksps(2) | ||
| IDD_AC | Analog Comparator (AC) | — | 70 | — | μA | Power Profile 0 |
| — | 12 | — | μA | Power Profile 1 | ||
| — | 6.0 | — | μA | Power Profile 2 | ||
| IDD_OPAMP | Analog Signal Conditioning (OPAMP), IRSEL =
0(3) |
— | 1.2 | — | mA | One OPAMP in voltage follower mode, VCM = VDD/2 |
Analog Signal Conditioning (OPAMP), IRSEL =
1(3) |
— | 880 | — | μA | One OPAMP in voltage follower mode, VCM = VDD/2 | |
| IDD_DAC | Digital-to-Analog Converter (DAC) | — | — | — | μA | DAC + DACOUT, DACVREF = VDD/2 |
| — | — | — | μA | DAC (VDD), DACVREF = VDD/2 | ||
| IDD_USART | Universal Synchronous and Asynchronous Receiver and Transmitter (USART) | — | 9.0 | — | μA | Idle mode, USART Enabled @9600 Baud |
| IDD_SPI | Serial Peripheral Interface (SPI) | — | 2.0 | — | μA | Idle mode, SPI Host @100 kHz |
| IDD_TWI | Two-Wire Interface (TWI) | — | 9.0 | — | μA | Idle mode, TWI Host @100 kHz |
| — | 7.0 | — | μA | Idle mode, TWI Client @100 kHz | ||
| IDD_NVM_ERASE | Flash Programming Erase | — | 5.0 | — | mA | Idle mode, Flash Programming Erase |
| IDD_NVM_WRITE | Flash Programming Write | — | 6.0 | — | mA | Idle mode, Flash Programming Write |
| IDD_ZCD | Zero Cross Detector (ZCD) | — | 12 | — | μA | Excluding sink/source currents |
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Notes:
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