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sam7x low power mode

Abbas Nozari

hi everybody
I am using at91samx257 micro controller. I want to set at91samx257 in low power mode but when i do this, the at91samx257 consumes about 40mA(PLL is set to 48MHz and no peripheral clock is enable).
can i set the micro controller in low power mode with current consumption less than 40mA or
40mA is the minimum current that at91samx257 is needed?

is there any solution to reduce the current consumption of the at91samx257 below the 20mA or 15mA?

thanks in advance

  • 0

    The AT91SAM7X256? Can you provide a link to this X257 part?

    Usually you'll need to turn things off (PLL, GPIO, Peripherals), and reduce the clock speeds, to bring the power consumption down. Using a WFI/SLEEP type modes or clock gearing are worth considering. Set pins to input/analogue modes.