37.6 Peripherals Power Consumption
The table below can be used to calculate the additional current consumption for the different I/O peripherals in the various operating modes.
Operating conditions:
- VDD=3V
- T=25°C
- OSC20M at 1MHz used as system clock source, except where otherwise specified.
Peripheral | Conditions | Typ.(1) | Unit |
---|---|---|---|
BOD | Continuous | 19 | µA |
Sampling @ 1kHz | 1.2 | ||
TCA | 16bit count @ 1MHz | 12.6 | µA |
TCB | 16bit count @ 1MHz | 7.4 | µA |
RTC | 16bit count @ OSCULP32K | 1.2 | µA |
WDT (including OSCULP32K) | 0.7 | µA | |
OSC20M | 125 | µA | |
AC | Fast Mode(2) | 92 | µA |
Low Power Mode(2) | 45 | µA | |
ADC | 50ksps | 325 | µA |
100ksps | 340 | µA | |
XOSC32K | CL=7.5pF | 0.5 | µA |
OSCULP32K | 0.4 | µA | |
USART | Enable @ 9600 Baud | 13 | µA |
SPI (Master) | Enable @ 100kHz | 2.1 | µA |
TWI (Master) | Enable @ 100kHz | 23.9 | µA |
TWI (Slave) | Enable @ 100kHz | 17.1 | µA |
Flash programming | Erase Operation | 1.5 | mA |
Write Operation | 3.0 |
Note:
- Current consumption of the module only. To calculate the total power consumption of the system, add this value to the base power consumption as listed in Power Consumption.
- CPU in Standby mode.