Chapter 12. Miscellaneous Interfaces; I2C; Table 12-1. Jetson Orin Nx I2C Pin Descriptions - Nvidia Jetson Orin NX Design Manual

Chapter 12. Miscellaneous Interfaces

12.1

I2C

Jetson Orin NX brings four I2C interfaces to the connector pins.
camera pin description table earlier in this design guide. The assignments in the "I2C Interface
Mapping" table should be used where applicable for the I2C interfaces.
Table 12-1. Jetson Orin NX I2C Pin Descriptions
Module Pin
Pin # Name Orin Signal
185 I2C0_SCL GP13_I2C2_CLK
187 I2C0_SDA GP14_I2C2_DAT
189 I2C1_SCL GP15_I2C8_CLK
191 I2C1_SDA GP16_I2C8_DAT
232 I2C2_SCL GP126_I2C1_CLK
234 I2C2_SDA GP127_I2C1_DAT
Notes: In the Direction column, Output is from Jetson Orin NX. Input is to Jetson Orin NX. Bidir is for Bidirectional signals.
PRELIMINARY INFORMATION
NVIDIA Jetson Orin NX
Usage/Description
General I2C 0 Clock. 1.5kΩ pull-up to 3.3V on module.
General I2C 0 Data. 1.5kΩ pull-up to 3.3V on the module.
General I2C 1 Clock. 1.5kΩ pull-up to 3.3V on the module.
General I2C 1 Data. 1.5kΩ pull-up to 3.3V on the module.
General I2C 2 Clock. 1.5kΩ pull-up to 1.8V on the module.
General I2C 2 Data. 1.5kΩ pull-up to 1.8V on the module.
is included in the
CAM_I2C
Recommended
Usage Direction Pin Type
I2C (general) Bidir
DG-10931-001_v0.1 | 61
Open Drain
– 3.3V
Open Drain
– 3.3V
Open Drain
– 3.3V
Open Drain
– 3.3V
Open Drain
– 1.8V
Open Drain
– 1.8V