36.10.4 External Clock

Figure 36-2. External Clock Waveform
Table 36-13. External Clock Specifications
Symbol Description Min. Typ. ✝ Max. Unit Conditions
fCLCL * Clock frequency 20 MHz
TCLCL Clock period 50 ns
tCHCX High time 40 %
tCLCX Low time 40 %
ΔTCLCL Change in period from cycle to cycle time 20 %

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

*Maximum external Clock frequency requires fCLK_MAIN to meet the specification for Clock frequency vs. VDD.