PRT2011DAF4A datasheet(35/113 Pages) NXP

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Electrical Characteristics

i.MX RT1064 Crossover Processors for Industrial Products, Rev. 2, 08/2020

NXP Semiconductors

4.3.1.3

LVDS I/O DC parameters

The LVDS interface complies with TIA/EIA 644-A standard. See TIA/EIA STANDARD 644-A,

“Electrical Characteristics of Low Voltage Differential Signaling (LVDS) Interface Circuits” for details.

Table 23 shows the Low Voltage Differential Signaling (LVDS) I/O DC parameters.

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.

Pull-down resistor (100_k



PD)

RPD_100K

Vin=NVCC_XXXX

—

A

Pull-down resistor (100_k



PD)

RPD_100K

Vin=0V

—

A

Input current (no PU/PD)

IIN

VI = 0, VI = NVCC_XXXX

-1

A

Keeper Circuit Resistance

R_Keeper

VI =0.3 x NVCC_XXXX, VI = 0.7 x

NVCC_XXXX

105

175



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 23. LVDS I/O DC characteristics1

1 Note: The LVDS interface is limited to CCM_CLK1_P and CCM_CLK1_N.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output Differential Voltage

VOD

Rload-100

 Diff

250

350

450

Output High Voltage

VOH

IOH = 0 mA

1.25

1.375

1.6

Output Low Voltage

VOL

IOL = 0 mA

0.9

1.025

1.25

Offset Voltage

VOS

—

1.125

1.2

1.375

Table 22. Single voltage GPIO DC parameters (continued)

Parameter

Symbol

Test Conditions

Min

Max

Units

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