55.14 Maximum Clock Frequencies Electrical Specifications
| AC CHARACTERISTICS | Standard
Operating Conditions: VDD = AVDD = 1.71V to 3.63V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial Temperature | |||
|---|---|---|---|---|
| Param. No. | Symbol | Characteristics | Max. | Units |
| FCLK_1 | fCPU | CPU clock freq | 120 | MHz |
| FCLK_3 | fAHB | AHB clock freq | 120 | MHz |
| FCLK_5 | fAPBx | APBA, APBB, APBC, APBD clock freq | 120 | MHz |
| FCLK_6 | fHS | High Speed (HS) clock freq | 132 | MHz |
| FCLK_7 | fGCLK_DPLLx | FDPLL0 and FDPLL1 reference clock freq | 3.2 | MHz |
| FCLK_9 | fGCLK_DPLLx_32K | FDPLL0 and FDPLL1 32k reference clock freq | 100 | MHz |
| FCLK_11 | fGCLK_DFLL48M_REF | DFLL48M reference clock freq | 33 | kHz |
| FCLK_13 | fGCLK_EIC | EIC input clock freq | 100 | MHz |
| FCLK_15 | fGCLK_FREQM_MSR | FREQM Measure Clock Freqency | 200 | MHz |
| FCLK_17 | fGCLK_FREQM_REF | FREQM Reference Clock Frequency | 100 | MHz |
| FCLK_19 | fGCLK_EVSYS_CHANNELx | EVSYS channel x input clock freq | 100 | MHz |
| FCLK_21 | fGCLK_SERCOMx_SLOW | Common SERCOM slow input clock freq | 12 | MHz |
| FCLK_23 | fGCLK_SERCOMx_CORE | SERCOMx input clock freq | 100 | MHz |
| FCLK_25 | fGCLK_CANx | CAN input clock freq | 100 | MHz |
| FCLK_27 | fGCLK_USB | USB input clock freq | 60 | MHz |
| FCLK_29 | fGCLK_I2S | I2S input clock freq | 100 | MHz |
| FCLK_31 | fGCLK_SDHCx_SLOW | Common SDHC slow input clock freq | 12 | MHz |
| FCLK_33 | fGCLK_SDHCx_CORE | SDHCx input clock freq | 150 | MHz |
| FCLK_35 | fGCLK_TCCx | TCCx input clock freq | 200 | MHz |
| FCLK_37 | fGCLK_TCx | TC0, TC1, TC2, TC3 input clock freq | 200 | MHz |
| FCLK_39 | fGCLK_TCx | TC4, TC5, TC6, TC7 input clock freq | 100 | MHz |
| FCLK_41 | fGCLK_PDEC | PDEC input clock freq | 200 | MHz |
| FCLK_43 | fGCLK_CCL | CCL input clock freq | 100 | MHz |
| FCLK_45 | fGCLK_GCLKINx | External GCLKx input clock freq | 50 | MHz |
| FCLK_47 | fGCLK_CM4_TRACE | Cortex-M4 Trace input clock freq | 120 | MHz |
| FCLK_49 | fGCLK_AC | Analog comparator peripheral module clock freq | 100 | MHz |
| FCLK_51 | fGCLK_ADCx | ADCx input clock freq | 100 | MHz |
| FCLK_53 | fGCLK_DAC | DAC input clock freq | 100 | MHz |