58.13.1.3 I/O Characteristics

Criteria used to define the maximum frequency of the I/Os:

  • Output duty cycle (40%-60%)
  • Minimum output swing: 100 mV to VDDIO - 100 mV
  • Addition of rising and falling time inferior to 75% of the period
Table 58-53. I/O Characteristics
Symbol Parameter Conditions Min Max Unit
Load VDDIO Drive 
Level
FreqMax1 Pin Group 1 (1) Maximum output frequency 10 pF 1.7V Low 40 MHz
High 65
25 pF Low 20
High 33
10 pF 2.7V Low 65
High 115
25 pF Low 28
High 55
PulseminH1 Pin Group 1 (1) High Level Pulse Width 10 pF 1.7V High 6.1 9.2 ns
PulseminL1 Pin Group 1 (1) Low Level Pulse Width 10 pF 1.7V High 6.1 9.2 ns
FreqMax2 Pin Group 2 (3)Maximum output frequency 10 pF 3.0V High 125 MHz
Low 100
PulseminH2 Pin Group 2 (2) High Level Pulse Width 10 pF 3.0V High 3.4 4.1 ns
PulseminL2 Pin Group 2 (2) Low Level Pulse Width 10 pF 3.0V High 3.4 4.1 ns
FreqMax3 Pin Group3(3) Maximum output frequency 30 pF 3.0V High 75 MHz
Low 50
PulseminH3 Pin Group 3 (3) High Level Pulse Width 30 pF 3.0V High 6.0 7.3 ns
PulseminL3 Pin Group 3 (3) Low Level Pulse Width 30 pF High 6.0 7.3 ns
FreqMax4 Pin Group 4 Maximum output frequency 40 pF 2.7V 51 MHz
PulseminH4 Pin Group 4 High Level Pulse Width 40 pF 2.7V 7.8 11.2 ns
PulseminL4 Pin Group 4 Low Level Pulse Width 40 pF 2.7V 7.8 11.2 ns