41.5 Maximum Clock Frequencies

Table 41-5. Maximum GCLK Generator Output Frequencies
DescriptionConditionsSymbolMax.Unit
GCLK Generator Output FrequencyUndividedfGCLKGEN0 / fGCLK_MAIN

fGCLKGEN1

fGCLKGEN2

96MHz
DividedfGCLKGEN3

fGCLKGEN4

fGCLKGEN5

48MHz
Table 41-6. Maximum Peripheral Clock Frequencies
DescriptionSymbolMax.Unit
CPU clock frequencyfCPU48MHz
AHB clock frequencyfAHB48MHz
APBA clock frequencyfAPBA48MHz
APBB clock frequencyfAPBB48MHz
APBC clock frequencyfAPBC48MHz
DFLL48M Reference clock frequencyfGCLK_DFLL48M_REF33kHz
FDPLL96M Reference clock frequencyfGCLK_DPLL2MHz
FDPLL96M 32k Reference clock frequencyfGCLK_DPLL_32K32kHz
WDT input clock frequencyfGCLK_WDT48MHz
RTC input clock frequencyfGCLK_RTC48MHz
EIC input clock frequencyfGCLK_EIC48MHz
USB input clock frequencyfGCLK_USB48MHz
EVSYS channel 0 input clock frequencyfGCLK_EVSYS_CHANNEL_048MHz
EVSYS channel 1 input clock frequencyfGCLK_EVSYS_CHANNEL_148MHz
EVSYS channel 2 input clock frequencyfGCLK_EVSYS_CHANNEL_248MHz
EVSYS channel 3 input clock frequencyfGCLK_EVSYS_CHANNEL_348MHz
EVSYS channel 4 input clock frequencyfGCLK_EVSYS_CHANNEL_448MHz
EVSYS channel 5 input clock frequencyfGCLK_EVSYS_CHANNEL_548MHz
EVSYS channel 6 input clock frequencyfGCLK_EVSYS_CHANNEL_648MHz
EVSYS channel 7 input clock frequencyfGCLK_EVSYS_CHANNEL_748MHz
EVSYS channel 8 input clock frequencyfGCLK_EVSYS_CHANNEL_848MHz
EVSYS channel 9 input clock frequencyfGCLK_EVSYS_CHANNEL_948MHz
EVSYS channel 10 input clock frequencyfGCLK_EVSYS_CHANNEL_1048MHz
EVSYS channel 11 input clock frequencyfGCLK_EVSYS_CHANNEL_1148MHz
Common SERCOM slow input clock frequencyfGCLK_SERCOMx_SLOW48MHz
SERCOM0 input clock frequencyfGCLK_SERCOM0_CORE48MHz
SERCOM1 input clock frequencyfGCLK_SERCOM1_CORE48MHz
SERCOM2 input clock frequencyfGCLK_SERCOM2_CORE48MHz
SERCOM3 input clock frequencyfGCLK_SERCOM3_CORE48MHz
SERCOM4 input clock frequencyfGCLK_SERCOM4_CORE48MHz
SERCOM5 input clock frequencyfGCLK_SERCOM5_CORE48MHz
TCC0, TCC1 input clock frequencyfGCLK_TCC0, GCLK_TCC196MHz
TCC2,TC3 input clock frequencyfGCLK_TCC2, GCLK_TC348MHz
TC4, TC5 input clock frequencyfGCLK_TC4, GCLK_TC596MHz
TC6,TC7 input clock frequencyfGCLK_TC6, GCLK_TC748MHz
ADC input clock frequencyfGCLK_ADC48MHz
AC digital input clock frequencyfGCLK_AC_DIG48MHz
AC analog input clock frequencyfGCLK_AC_ANA64kHz
DAC input clock frequencyfGCLK_DAC48MHz
PTC input clock frequencyfGCLK_PTC48MHz
I2S serial 0 input clock frequencyfGCLK_I2S_013MHz
I2S serial 1 input clock frequencyfGCLK_I2S_113MHz