In idle mode clock to IO, ADC and PLL oscillator will be active. The above tabular column shows the key differences between different ATtiny85 sleep modes in terms of active clock domains, oscillators and wakeup sources. Each of these sleep mode allows different level of power saving functionality by allowing user to disable different set of peripherals in the controller. Sleep modes in ATtiny85:ĪTtiny85 microcontroller has three types of sleep mode. This will reduce the power consumed by microcontroller and thus enables the device to run longer. This allows the programmer to disable different peripherals in a microcontroller. To cater this power saving necessity microcontrollers are equipped with sleep mode functionality. With growing demand in portable embedded devices power management is an absolute necessary. Sleep mode is a valuable feature in microcontrollers.
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