Datasheet

Electrical characteristics
i.MX RT1015 Crossover Processors Data Sheet for Consumer Products, Rev. 0.1, 03/2019
NXP Semiconductors 27
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
Input Hysteresis
(NVCC_XXXX= 1.8V)
VHYS_LowV
DD
NVCC_XXXX = 1.8 V 250 — mV
Input Hysteresis
(NVCC_XXXX=3.3V)
VHYS_High
VDD
NVCC_XXXX = 3.3 V 250 — mV
Schmitt trigger VT+
2,3
VTH+ — 0.5 x
NVCC_XXXX
—mV
Schmitt trigger VT-
2,3
VTH- — — 0.5 x
NVCC_XXXX
mV
Pull-up resistor (22_k PU) RPU_22K Vin = 0 V — 212 A
Pull-up resistor (22_k PU) RPU_22K Vin = NVCC_XXXX — 1 A
Pull-up resistor (47_k PU) RPU_47K Vin = 0 V — 100 A
Pull-up resistor (47_k PU) RPU_47K Vin = NVCC_XXXX — 1 A
Pull-up resistor (100_k PU) RPU_100K Vin = 0 V — 48 A
Pull-up resistor (100_k PU) RPU_100K Vin = NVCC_XXXX — 1 A
Pull-down resistor (100_k PD) RPD_100K Vin = NVCC_XXXX — 48 A
Pull-down resistor (100_k PD) RPD_100K Vin = 0V — 1 A
Input current (no PU/PD) IIN VI = 0, VI = NVCC_XXXX -1 1 A
Keeper Circuit Resistance R_Keeper VI =0.3 x NVCC_XXXX, VI = 0.7
x NVCC_XXXX
105 175 k
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.
Table 21. Single voltage GPIO DC parameters (continued)
Parameter Symbol Test Conditions Min Max Units
Test Point
From Output
Under Test
CL
CL includes package, probe and fixture capacitance