46.14 Maximum Clock Frequencies

Table 46-19. Maximum Clock Frequencies AC Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDDREG = VDDIO = AVDD 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristicsMaxUnits
FCLK_1FCYMCU clock freq72MHz
FCLK_3fAHBAHB clock freq72MHz
FCLK_5fAPB0:1] APB clock freq72MHz
FCLK_5fAPB253MHz
FCLK_6fGCLKGEN[0]GCLK clock freq output200MHz
fGCLKGEN[1:7]200MHz
fGCLKGEN[8:11]100MHz
FCLK_7fGCLK_PLLPLL reference clock freq60MHz
FCLK_11fGCLK_DFLL48M_REFDFLL 48M reference clock freq1MHz
FCLK_13fGCLK_EICEIC input clock freq100MHz
FCLK_15fGCLK_FREQM_MSRFREQM Measure Clock Frequency200MHz
FCLK_17fGCLK_FREQM_REFFREQM Reference Clock Frequency100MHz
FCLK_19fGCLK_EVSYS_CHANNELxEVSYS channel x input clock freq100MHz
FCLK_21fGCLK_SERCOMx_SLOWCommon SERCOM slow input clock freq32kHz
FCLK_23fGCLK_SERCOM_CORESERCOM input clock freq160MHz
FCLK_25fGCLK_CANxCAN input clock freq100MHz
FCLK_27fGCLK_USBFSUSB FS input clock freq48MHz
FCLK_35fGCLK_TCCxTCCx input clock freq200MHz
FCLK_43fGCLK_CCLCCL input clock freq50MHz
FCLK_45fGCLK_GCLKINxExternal GCLKx input clock freq50MHz
FCLK_49fGCLK_ACAnalog comparator peripheral module clock freq100MHz
FCLK_51fGCLK_ADCxADCx input clock freq144MHz
FCLK_55fGCLK_PTCPTC input clock freq50MHz
FCLK_75fGCLK_PUFPUF input clock freq80MHz
FCLK_77fGCLK_ATAnti-Tamper input clock freq80MHz