PIMXRT406LCAF4A datasheet(28/71 Pages) NXP

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i.MX RT1015 Crossover Processors Data Sheet for Industrial Products, Rev. 2, 03/2021

NXP Semiconductors

Electrical characteristics

4.3.2

I/O AC parameters

This section includes the AC parameters of the following I/O types:

•

General Purpose I/O (GPIO)

Figure 4 shows load circuit for output, and Figure 5 show the output transition time waveform.

Figure 4. Load circuit for output

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 21 and Table 22,

respectively. Note that the fast or slow I/O behavior is determined by the appropriate control bits in the

IOMUXC control registers.

1 Overshoot and undershoot conditions (transitions above NVCC_XXXX and below GND) on switching pads must be held

below 0.6 V, and the duration of the overshoot/undershoot must not exceed 10% of the system clock cycle. Overshoot/

undershoot must be controlled through printed circuit board layout, transmission line impedance matching, signal line

termination, or other methods. Non-compliance to this specification may affect device reliability or cause permanent damage

to the device.

2 To maintain a valid level, the transition edge of the input must sustain a constant slew rate (monotonic) from the current DC

level through to the target DC level, Vil or Vih. Monotonic input transition time is from 0.1 ns to 1 s.

3 Hysteresis of 250 mV is guaranteed over all operating conditions when hysteresis is enabled.

Test Point

From Output

Under Test

CL includes package, probe and fixture capacitance

OVDD

20%

80%

20%

Output (at pad)

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