Nvidia JETSON TX2 User Guide

Jetson TX2 Developer Kit DA_09452-003 | 7
Two 3.3V power pins and two 5V power pins. These are not switchable;
power is always available when the developer kit is connected to power.
o Interface signal pins.
By default, all interface signal pins are 3.3V, but some can be configured for
1.8V. See [J24] information below.
L4T provides a Python library, Jetson.GPIO, for controlling GPIOs. The
library has the same API as RPi.GPIO. See /opt/nvidia/jetson-
gpio/doc/README.txt on your Jetson system for details.
By default, all interface signal pins are configured as GPIOs, except pins 3
and 5 and pins 27 and 28, which are I2C SDA and SCL, and pins 8 and 10,
which are UART TX and RX.
Optional Default
Signal
voltage
Pin
Signal
voltage
Default Optional
3.3V Supply 1 2 5.0V Supply
I2C1 SDA 3.3V
3
4
5.0V Supply
I2C1 SCL 3.3V 5 6 Ground
Audio I2S
MCLK
GPIO
3.3V
or 1.8V
7 8 3.3V UART TXD GPIO
Ground
9
10
3.3V UART RXD GPIO
UART RTS GPIO 3.3V 11 12
3.3V
or 1.8V
GPIO
Audio I2S
CLK
GPIO
3.3V
or 1.8V
13 14 Ground
GPIO 3.3V 15 16
3.3V
or 1.8V
GPIO
Digital Mic
Input
3.3V Supply 17 18
3.3V
or 1.8V
GPIO
SPI1 MOSI GPIO
3.3V
or 1.8V
19 20 Ground
SPI1 MISO GPIO
3.3V
or 1.8V
21 22 3.3V GPIO
SPI1 SCLK GPIO
3.3V
or 1.8V
23 24
3.3V
or 1.8V
GPIO SPI1 CS0
Ground 25 26 Not Used
I2C0 SDA 3.3V
27
28
3.3V I2C0 SCL
GPIO
3.3V
or 1.8V
29 30 Ground
GPIO 3.3V 31 32
3.3V
or 1.8V
GPIO
Digital Mic
Clock
GPIO
3.3V
or 1.8V
33 34 Ground

Nvidia JETSON TX2 Specifications

General

Brand	Nvidia
Model	JETSON TX2
Category	Microcontrollers
Language	English