RT1060 datasheet(40/119 Pages) NXP

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i.MX RT1060 Crossover Processors for Consumer Products, Rev. 4, 04/2024

NXP Semiconductors

Electrical Characteristics

4.3.3

Output buffer impedance parameters

This section defines the I/O impedance parameters of the i.MX RT1060 processors for the following I/O

types:

• Single Voltage General Purpose I/O (GPIO)

NOTE

GPIO I/O output driver impedance is measured with “long” transmission

line of impedance Ztl attached to I/O pad and incident wave launched into

transmission line. Rpu/Rpd and Ztl form a voltage divider that defines

specific voltage of incident wave relative to NVCC_XXXX. Output driver

impedance is calculated from this voltage divider (see Figure 6).

Table 25. 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

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 Times1

1 Hysteresis mode is recommended for inputs with transition times greater than 25 ns.

trm

—

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