NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 57
Chapter 11. Miscellaneous Interfaces
11.1 I2C
Jetson TX2 NX brings four I2C interfaces to the connector pins. CAM_I2C is included in Table
8-2. The assignments in the I2C interface mapping table should be used where applicable for
the I2C interfaces.
Table 11-1. Jetson TX2 NX I2C Pin Description
Pin # Module Pin Name Tegra X2 Signal Usage/Description
Usage on DevKit
Carrier Board
Direction Pin Type
185 I2C0_SCL GEN1_I2C_SCL
General I2C 0 Clock. 2.2kΩ pull-up to
3.3V on module.
I2C (general) Bidir
Open Drain –
3.3V
187 I2C0_SDA GEN1_I2C_SDA
General I2C 0 Data. 2.2kΩ pull-up to
3.3V on the module.
Open Drain –
3.3V
189 I2C1_SCL
GPIO_SEN8 General I2C 1 Clock. 2.2kΩ pull-up to
3.3V on the module.
Open Drain –
3.3V
191 I2C1_SDA
GPIO_SEN9 General I2C 1 Data. 2.2kΩ pull-up to
3.3V on the module.
Open Drain –
3.3V
232 I2C2_SCL GEN8_I2C_SCL
General I2C 2 Clock. 2.2kΩ pull-up to
1.8V on the module.
Open Drain –
1.8V
234 I2C2_SDA GEN8_I2C_SDA
General I2C 2 Data. 2.2kΩ pull-up to
1.8V on the module.
Open Drain –
1.8V
Notes: In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.