IMX7DCEC datasheet(33/161 Pages) NXP

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Electrical characteristics

i.MX 7Dual Family of Applications Processors Datasheet, Rev. 7, 09/2023

NXP Semiconductors

4.1.7.2

4.1.7.2 Power-Down modes

Table 17 shows the USB interface current consumption with only the OTG block powered down.

In Power-Down mode, everything is powered down, including the USB_VBUS valid comparators and

their associated bandgap circuity in typical condition. Table 18 shows the USB interface current

consumption in Power-Down mode.

4.1.8

PCIe phy 2.1 DC electrical characteristics

Note: VDD should have no more than 40 mVpp AC power supply noise superimposed on the high power supply voltage for the

PHY core (1.8 V nominal DC value). At the same time, VDD should have no more than 20 mVpp AC power supply noise

superimposed on the low power supply voltage for the PHY core.

The power supply voltage variation for the PHY core should have less than +/-5% including the board-level power supply variation

and on-chip power supply variation due to the finite impedances in the package.

Table 17. USB PHY current consumption with

VBUS Valid Comparators disabled1

1 VBUS Valid comparators can be disabled through software by setting USBNC_OTG*_PHY_CFG2[OTGDISABLE0] to 1. This

signal powers down only the VBUS Valid comparator, and does not control power to the Session Valid Comparator, ADP Probe

and Sense comparators, or the ID detection circuitry.

VDD_USB_OTG1_3P3_IN

VDD_USB_OTG2_3P3_IN

Current

730 uA

Table 18. USB PHY current consumption in Power-Down mode1

1 The VBUS Valid Comparators and their associated bandgap circuits can be disabled through software by setting

USBNC_OTG*_PHY_CFG2[OTGDISABLE0] to 1 and USBNC_OTG*_PHY_CFG2[DRVVBUS0] to 0, respectively.

VDD_USB_OTG1_3P3_IN

VDD_USB_OTG2_3P3_IN

Current

200 uA

Table 19. PCIe recommended operating conditions

Parameter

Description

Min

Max

Unit

VDD

Low Power Supply Voltage for PHY Core

1 V

0.95

1.05

High Power Supply Voltage for PHY Core

1.8 V

1.71

1.89

Commercial Temperature Range

°C

Simulation Junction Temperature Range

-40

125

°C

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