Pins Pulled Or Driven High During Power-On; Table 13-1. Pins Pulled Or Driven High By Orin Prior To Sys_Reset* Inactive; Table 13-2. Pins With External Pull-Ups To Supply On Before Sys_Reset* Inactive - Nvidia Jetson Orin NX Series Product Manual

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
MOD_SLEEP*
FORCE_RECOVERY*
Table 13-2. Pins with External Pull-Ups to Supply on before SYS_RESET*
Inactive
Orin Module Pin Pull-Up Supply
Voltage (V)
I2C0_SCL/SDA 3.3
I2C1_SCL/SDA 3.3
I2C2_SCL/SDA 1.8
CAM_I2C_SCL/SDA 3.3
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series
Power-On Reset Default
Driven high
Internal pull-up
External
Pull-U
1.5
2.2
2.2
2.2
Pull-
na
~50
Orin Module Pin Pull-Up Supply
Voltage (V)
GPIO00 1.8
PCIE[3:0]_CLKREQ* 3.3
PCIE[3:0]_RST* 3.3
PCIE_WAKE* 3.3
PADS
External
Pull-U
100
47
4.7
47
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