Datasheet
Electrical Characteristics
i.MX 6DualPlus/6QuadPlus Automotive Applications Processors, Rev. 3, 11/2018
NXP Semiconductors 45
4.7.1 General Purpose I/O AC Parameters
The I/O AC parameters for GPIO in slow and fast modes are presented in the Table 28 and Table 29,
respectively. Note that the fast or slow I/O behavior is determined by the appropriate control bits in the
IOMUXC control registers.
Table 28. General Purpose I/O AC Parameters 1.8 V Mode
Parameter Symbol Test Condition Min Typ Max Unit
Output Pad Transition Times, rise/fall
(Max Drive, DSE=111)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
2.72/2.79
1.51/1.54
ns
Output Pad Transition Times, rise/fall
(High Drive, DSE=101)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
3.20/3.36
1.96/2.07
Output Pad Transition Times, rise/fall
(Medium Drive, DSE=100)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
3.64/3.88
2.27/2.53
Output Pad Transition Times, rise/fall
(Low Drive. DSE=011)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
4.32/4.50
3.16/3.17
Input Transition Times
1
1
Hysteresis mode is recommended for inputs with transition times greater than 25 ns.
trm — — — 25 ns
Table 29. General Purpose I/O AC Parameters 3.3 V Mode
Parameter Symbol Test Condition Min Typ Max Unit
Output Pad Transition Times, rise/fall
(Max Drive, DSE=101)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
1.70/1.79
1.06/1.15
ns
Output Pad Transition Times, rise/fall
(High Drive, DSE=011)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
2.35/2.43
1.74/1.77
Output Pad Transition Times, rise/fall
(Medium Drive, DSE=010)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
3.13/3.29
2.46/2.60
Output Pad Transition Times, rise/fall
(Low Drive. DSE=001)
tr, tf 15 pF Cload, slow slew rate
15 pF Cload, fast slew rate
——
5.14/5.57
4.77/5.15
Input Transition Times
1
1
Hysteresis mode is recommended for inputs with transition times greater than 25 ns.
trm — — — 25 ns