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
| Peripheral | Conditions | Typ.(1) | Unit |
|---|---|---|---|
| BOD | Continuous | 19 | µA |
| Sampling @ 1 kHz | 1 | ||
| TCA | 16-bit count @ 1 MHz | 13 | µA |
| TCB | 16-bit count @ 1 MHz | 7.5 | µA |
| RTC | 16-bit count @ 32.768 kHz @ OSCULP32K | 1 | µA |
| WDT (including OSCULP32K) | 1 | µA | |
| OSC20M | 125 | µA | |
| AC | Fast mode(2) | 92 | µA |
| Low-Power mode(2) | 45 | µA | |
| ADC | 50 ksps | 325 | µA |
| 100 ksps | 340 | µA | |
| XOSC32K | CL = 7.5 pF | 0.5 | µA |
| OSCULP32K | 0.5 | µA | |
| USART | Enable @ 9600 Baud | 13 | µA |
| SPI (Host) | Enable @ 100 kHz | 2 | 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 |
Note:
- 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.
- The CPU in Standby sleep mode.