55.41 SWD 2-Wire Electrical Specifications

Figure 55-29. SWD 2-Wire Read/Write Timing Diagrams
Table 55-56. SWD 2-Wire Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDD = AVDD = 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial Temperature

Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
SWD_1fSWDCLKSWDCLK Clock Frequency——20MHzTA = 85°C
SWD_3tSWDCLKHIGHSWDCLK Clock High Time1 / (2 * fSWDCLK)——MHz
SWD_5tSWDCLKLOWSWDCLK Clock Frequency1 / (2 * fSWDCLK)——MHz
SWD_7tSWDIOSKEWSWDIO SKEW-5—5ns
SWD_9tSWDIOSETUPSWDIO Setup Time4——ns
SWD_11tSWDIOHOLDSWDIO Hold Time1——ns