Datasheet
i.MX RT1015 Crossover Processors Data Sheet for Consumer Products, Rev. 0.1, 03/2019
28 NXP Semiconductors
Electrical characteristics
Figure 5. Output transition time waveform
4.3.2.1 General purpose I/O AC parameters
The I/O AC parameters for GPIO in slow and fast modes are presented in the Table 22 and Table 23,
respectively. Note that the fast or slow I/O behavior is determined by the appropriate control bits in the
IOMUXC control registers.
Table 22. 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, ipp_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, ipp_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, ipp_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. ipp_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 23. 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, ipp_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
ns
Output Pad Transition Times, rise/fall
(High Drive, ipp_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, ipp_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. ipp_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
0V
OVDD
20%
80%
80%
20%
tr
tf
Output (at pad)