The table below can be used 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. See the peripheral section for further information.
Peripheral | Conditions | Typ.(1) | Unit |
---|---|---|---|
BOD | Continuous | 19 | µA |
Sampling @ 1 kHz | 1.2 | ||
TCA | 16-bit count @ 1 MHz | 13 | µA |
TCB | 16-bit count @ 1 MHz | 7.4 | µA |
RTC | 16-bit count @ OSCULP32K | 1.2 | µA |
WDT (including OSCULP32K) | 0.7 | µA | |
OSC20M | 130 | µA | |
AC | Low-Power mode disabled(2) | 92 | µA |
Low-Power mode enabled(2) | 45 | ||
ADC(3) | CLK_ADC = 1MHz, VREF = Internal 2.048V | 380 | µA |
XOSC32K | CL = 7.5 pF | 0.5 | µA |
OSCULP32K | 0.4 | µA | |
USART | Enable @ 9600 Baud | 13 | µA |
SPI (Host) | Enable @ 100 kHz | 2.1 | µA |
TWI (Host) | Enable @ 100 kHz | 24 | µA |
TWI (Client) | Enable @ 100 kHz | 17 | µA |
Flash programming | Erase Operation | 1.5 | mA |
Write Operation | 3.0 |