31.11 Maximum Clock Frequencies
| AC CHARACTERISTICS | Standard
Operating Conditions: VDDIO = AVDD = VDD 1.62V to 3.63V (unless
otherwise stated) Operating Temperature: -40°C ≤ TA ≤ +85°C for Industrial | |||
|---|---|---|---|---|
| Param. No. | Symbol | Characteristics | Max. | Units |
| FCLK_1 | fCPU | CPU clock frequency | 48 | MHz |
| FCLK_3 | fAHB | AHB clock frequency | 48 | MHz |
| FCLK_5 | fAPBn | APBA, APBB, APBC clock frequency | 48 | MHz |
| FCLK_6 | fGCLKGEN[0:7] | GCLK clock frequency output | 48 | MHz |
| FCLK_11 | fGCLK_DFLL48M_REF | DFLL 48M reference clock frequency | 35.1 | KHz |
| FCLK_13 | fGCLK_EIC | EIC input clock frequency | 48 | MHz |
| FCLK_19 | fGCLK_EVSYS_CHANNELx | EVSYS channel x input clock frequency | 48 | MHz |
| FCLK_21 | fGCLK_SERCOMx_SLOW | Common SERCOM slow input clock frequency | 48 | MHz |
| FCLK_23 | fGCLK_SERCOMx_CORE | SERCOMx input clock frequency | 48 | MHz |
| FCLK_37 | fGCLK_TCx | TCx input clock frequency | 48 | MHz |
| FCLK_45 | fGCLK_GCLKINx | External GCLKx input clock frequency | 48 | MHz |
| FCLK_48 | fGCLK_AC_DIG | Analog comparator peripheral module digital input clock frequency | 48 | MHz |
| FCLK_49 | fGCLK_AC_ANA | Analog comparator peripheral module analog input clock frequency | 64 | KHz |
| FCLK_51 | fGCLK_ADCx | ADCx input clock frequency | 48 | MHz |
| FCLK_53 | fGCLK_DAC | DAC input clock frequency | 48 | MHz |
| FCLK_55 | fGCLK_PTC | PTC input clock frequency | 48 | MHz |