Nvidia Jetson Orin NX Series User Manual

Miscellaneous Interfaces
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series DG-10931-001_v1.1 | 74
Table 12-12. Orin Module Fan Pin Descriptions
Pin #
Module Pin
Name
Orin Signal
Usage and Description
Recommended
Usage
Direction
Pin Type
230
GPIO14
GP31_PWM3
Fan PWM
Fan
Output (note)
CMOS 1.8V
208
GPIO08
GP62
Fan tachometer
Fan
Input (note)
CMOS 1.8V
Notes:
1. In the Direction column, Output is from Orin module. Input is to Orin module. Bidir is for Bidirectional signals.
2. The direction indicated for GPIO014 and GPIO08 is associated with their use as Fan PWM/Tach. The pins support GPIO
functionality, so support both input and output operation (bidirectional).
Figure 12-7. Orin Module Fan Connections
VDD_5V_IN
G
S
D
1
2
3
4
G
S
D
1k
10k
10uF
Fan
Header
Jetson
SoC Fan
GP31_PWM3
FAN_TACH
FAN_PWM
GP62
230
208
100k
GPIO08
GPIO14
VDD_5V_IN
G
S
D
10k
10k
VDD_1V8
G
S D
0.1uF
BAT54C
SM2309
PSAC-TRG
DMN26
DOUFB4
DMN26
DOUFB4
DMN26
DOUFB4
100uH
VDD_5V_IN
12.6 Debug
Orin Module supports a UART for debugging purposes. The UART intended for debug is
UART2.
Table 12-13. Orin Module Debug UART Pin Descriptions
Pin #
Module Pin
Name
Orin Signal
Usage and Description
Recommended
Usage
Direction
Pin Type
238
UART2_RXD
GP11_UART3_TXD
UART 2 receive
Debug UART
Input
CMOS 1.8V
236
UART2_TXD
GP12_UART3_RXD
UART 2 transmit
Output
Note: In the Direction column, Output is from Orin module. Input is to Orin module. Bidir is for Bidirectional signals.
Table 12-14. Debug UART Connections
Module Pin Name
Type
Termination
Description
UART2_TXD
O
UART #2 Transmit: Connect to RX pin of serial device
UART2_RXD
I
If level shifter implemented,
-Orin
module side of the device.
UART #2 Receive: Connect to TX pin of serial device

Nvidia Jetson Orin NX Series Specifications

General

Networking	Gigabit Ethernet
Module Size	69.6 mm x 45 mm
Operating System	Linux (JetPack SDK)
GPU	NVIDIA Ampere architecture with 1024 CUDA cores
CPU	8-core ARM Cortex-A78AE v8.2 64-bit CPU
Memory	16GB 128-bit LPDDR5
Storage	eMMC 5.1
AI Performance	100 TOPS (INT8)
Camera	Up to 6 cameras (24 via virtual channels) CSI camera
Power	15W to 25W
Video Encode	1x 4Kp60 | 2x 4Kp30 | 4x 1080p60
Connectivity	PCIe Gen4
Other I/O	GPIO, I2C, SPI, UART, CAN