35.10.4 External Clock

Figure 35-2. External Clock Waveform
Table 35-13. External Clock Specifications
SymbolDescriptionMin.Typ. ✝Max.UnitConditions
fCLCLClock frequency——20MHz
TCLCLClock period50——ns
tCHCXHigh time —40—%
tCLCXLow time —40—%
ΔTCLCLChange in period from cycle to cycle time —20—%

✝ Data in the “Typ.” column is at TA = 25°C and VDD = 3.0V unless otherwise specified. These parameters are not tested and are for design guidance only.