57.39 SWD 2-Wire Electrical Specifications

Figure 57-57. SWD 2-Wire Read/Write Timing Diagrams
Table 57-52. SWD 2-Wire Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDDIO = VDDIN 2.5V to 3.6V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristicsMin.Typ.Max.UnitsConditions
SWD_1fSWDCLKSWDCLK Clock Frequency——25MHz—
SWD_3tSWDCLKHIGHSWDCLK Clock High Time1 / (2 × fSWDCLK)——ns
SWD_5tSWDCLKLOWSWDCLK Clock Low Time1 / (2 × fSWDCLK)——ns
SWD_7tSWDIOSKEWSWDIO Skew-5—5ns
SWD_9tSWDIOSETUPSWDIO Setup Time4——ns
SWD_11tSWDIOHOLDSWDIO Hold Time1——ns