Nvidia Jetson Orin NX Series User Manual

PADS
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series DG-10931-001_v1.1 | 77
13.3 Pins Pulled or Driven High During
Power-On
The Orin module is powered up before the carrier board (See Section 6.1 for power
sequencing). Table 13-1 lists the pins on Orin module that default to being pulled or driven
high. Care must be taken on the carrier board design to ensure that any of these pins that
connect to devices on the carrier board (or devices connected to the carrier board) do not
cause damage or excessive leakage to those devices. Some of the ways to avoid issues with
sensitive devices are:
 External pull-downs on the carrier board that are strong enough to keep the signals low
are one solution, given that this does not affect the function of the pin.
 Buffers or level shifters can be used to separate the signals from devices that may be
affected. The buffer or shifter should be disabled until the device power is enabled.
Table 13-1. Pins Pulled or Driven High by Orin Prior to SYS_RESET*
Inactive
Orin Module Pin
Power-On Reset Default
Pull-
MOD_SLEEP*
Driven high
na
FORCE_RECOVERY*
Internal pull-up
~50
Table 13-2. Pins with External Pull-Ups to Supply on before SYS_RESET*
Inactive
Orin Module Pin
Pull-Up Supply
Voltage (V)
External
Pull-U
Orin Module Pin
Pull-Up Supply
Voltage (V)
External
Pull-U
I2C0_SCL/SDA
3.3
1.5
GPIO00
1.8
100
I2C1_SCL/SDA
3.3
2.2
PCIE[3:0]_CLKREQ*
3.3
47
I2C2_SCL/SDA
1.8
2.2
PCIE[3:0]_RST*
3.3
4.7
CAM_I2C_SCL/SDA
3.3
2.2
PCIE_WAKE*
3.3
47

Nvidia Jetson Orin NX Series Specifications

General

Brand	Nvidia
Model	Jetson Orin NX Series
Category	Control Unit
Language	English