36.6 Peripherals Power Consumption

Use the table below 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 1 MHz used as the system clock source, except where otherwise specified
  • In Idle sleep mode, except where otherwise specified
Table 36-7. Peripherals Power Consumption
PeripheralConditionsTyp.(1)Unit
BODContinuous19µA
Sampling @ 1 kHz1
TCA16-bit count @ 1 MHz13µA
TCB16-bit count @ 1 MHz7.5µA
RTC16-bit count @ 32.768 kHz @ OSCULP32K1µA
WDT (including OSCULP32K)1µA
OSC20M125µA
ACFast mode(2)92µA
Low-Power mode(2)45µA
ADC50 ksps325µA
100 ksps340µA
XOSC32KCL = 7.5 pF0.5µA
OSCULP32K0.5µA
USARTEnable @ 9600 Baud13µA
SPI (Host)Enable @ 100 kHz2µA
TWI (Host)Enable @ 100 kHz24µA
TWI (Client)Enable @ 100 kHz17µA
Flash programming Erase Operation1.5mA
Write Operation3.0
Note:
  1. The 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.
  2. The CPU in Standby sleep mode.