49.12 Maximum Clock Frequencies Electrical Specifications
AC CHARACTERISTICS | Standard
Operating Conditions: VDD = AVDD = 1.62V to 3.63V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||
---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Max. | Units | |
PL0 | PL2 | ||||
FCLK_1 | fCPU | CPU clock frequency | 12 | 48 | MHz |
FCLK_3 | fAHB | AHB clock frequency | 12 | 48 | MHz |
FCLK_5 | fAPBA, fAPBB, fAPBC | APBA, APBB, APBC clock frequency | 12 | 48 | MHz |
FCLK_6 | fGCLK_GENn | Output frequency (UNDIVIDED) | 25 | 96 | MHz |
Output frequency (DIVIDED) | 12 | 48 | |||
FCLK_7 | fGCLK_FDPLL96M | FDPLL96M reference clock frequency | 2 | 2 | MHz |
FCLK_9 | fGCLK_FDPLL96M_32K | FDPLL96M 32K reference slow clock frequency | 33 | 33 | kHz |
FCLK_11 | fGCLK_DFLL48M | DFLL48M reference clock frequency | 33 | 33 | kHz |
FCLK_12 | fGCLK_DFLLULP | DFLLULP reference clock frequency | 1 | 4 | MHz |
FCLK_13 | fGCLK_EIC | EIC input clock frequency | 12 | 48 | MHz |
FCLK_15 | fGCLK_FREQM_MSR | FREQM Measure clock frequency | 25 | 100 | MHz |
FCLK_17 | fGCLK_FREQM_REF | FREQM Reference clock frequency | 25 | 100 | MHz |
FCLK_19 | fGCLK_EVSYS_CHANNELx | EVSYS channel x input clock frequency | 12 | 48 | MHz |
FCLK_21 | fGCLK_SERCOMx_SLOW | Common SERCOM slow input clock frequency | 1 | 5 | MHz |
FCLK_23 | fGCLK_SERCOMx_CORE | SERCOMx input clock frequency | 6 | 24 | MHz |
FCLK_27 | fGCLK_USB | USB input clock frequency | N/A | 60 | MHz |
FCLK_29 | fGCLK_I2S | I2S input clock frequency | 12 | 12 | MHz |
FCLK_35 | fGCLK_TCCx | TCCx input clock frequency | 25 | 100 | MHz |
FCLK_37 | fGCLK_TCx | TCx input clock frequency | 12 | 48 | MHz |
FCLK_43 | fGCLK_CCL | CCL input clock frequency | 12 | 48 | MHz |
FCLK_45 | fGCLK_GCLKINx | External GCLKx input clock frequency | 12 | 48 | MHz |
FCLK_49 | fGCLK_AC | AC input clock frequency | 12 | 48 | MHz |
FCLK_51 | fGCLK_ADC | ADC input clock frequency | 12 | 48 | MHz |
FCLK_53 | fGCLK_DAC | DAC input clock frequency | 12 | 12 | MHz |
FCLK_55 | fGCLK_PTC | PTC Input Clock Frequency | 12 | 48 | MHz |