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