nrf51822 QFAC and QFAA, witch consume more current

[yyl]

nrf51822 QFAC have more flash and ram than QFAA, so, is QFAC consume more electric current than QFAA in idle mode and sleep mode? in low-power consumption product，if it's enough for flash and ram，QFAA is better than QFAC？

[Håkon Alseth]

Hi,

 

The QFAA has 16k RAM, while the QFAC has 32k RAM, which is the reason for the slightly higher current consumption in sleep modes with RAM on.

 

Kind regards,

Håkon

[yyl]

Thanks!.  I will choose QFAC and turn off RAM in sleep mode.