Nvidia Jetson TX2 NX User Manual

Miscellaneous Interfaces
NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 63
Table 11-7. Jetson TX2 NX Fan Pin Description
Pin # Module Pin Name Tegra X2 Signal Usage/Description
Usage on DevKit
Carrier Board
Direction Pin Type
230 GPIO14
GPIO_SEN6
Fan PWM
Fan
Output CMOS – 1.8V
208 GPIO08
UART5_TX
Fan tachometer Input CMOS – 1.8V
Notes:
1. In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.
2. The directions for GPIO14 and GPIO08 are true when used for those functions. Otherwise as GPIOs, the directions are
bidirectional.
Figure 11-6. Jetson TX2 NX Fan Connections
VDD_5V_IN
G
S
D
1
2
3
4
G
S
D
1kΩ
10 kΩ
10uF
Fan
Header
Jetson
Tegra X2
– Fan
GPIO _SEN6
AO
FAN_TACH
FAN_PWM
UART5_TX
230
208
UART
10 0k Ω
GP IO 08
GP IO 14
VDD_5V_IN
G
S
D
10 kΩ
10 kΩ
VDD_1V8
G
S D
0.1uF
BAT54 C
SM23 09
PSAC
-TRG
DMN2 6
DO UFB 4
DMN2 6
DO UFB 4
DMN2 6
DO UFB 4
10 0u H
VDD_5V_IN
11.5 UART
The Jetson TX2 NX brings three UARTs out to the main connector. See Figure 11-7 for typical
assignments of the three available UARTs.
Table 11-8. Jetson TX2 NX UART Pin Description
Pin # Module Pin Name Tegra X2 Signal Usage/Description
Usage on DevKit
Carrier Board
Direction Pin Type
99 UART0_TXD
UART2_TX
UART #0 Transmit. See note 1.
M.2 Key E
Output
CMOS – 1.8V
101 UART0_RXD
UART2_RX
UART #0 Receive Input
103 UART0_RTS*
UART2_RTS
UART #0 Request to Send. See note 1. Output
105 UART0_CTS*
UART2_CTS
UART #0 Clear to Send Input
203 UART1_TXD
UART3_TX
UART #1 Transmit. See note 1.
Expansion Header
Output
205 UART1_RXD
UART3_RX
UART #1 Receive Input
207 UART1_RTS*
UART3_RTS
UART #1 Request to Send Output
209 UART1_CTS*
UART3_CTS
UART #1 Clear to Send Input
236 UART2_TXD
UART1_TX
UART #2 Transmit.
Debug Serial Port
Output
238 UART2_RXD
UART1_RX
UART #2 Receive Input
Notes:
1. Buffered on module to keep connected devices from affecting state of the pin during power-on as it is one of the SoC strap
pins. These pins can only be used as outputs if configured as GPIOs.
2. In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.
3. The directions for UART[2:0]x are true when used for those functions. Otherwise as GPIOs, the direction is bidirectional.

Nvidia Jetson TX2 NX Specifications

General

Brand	Nvidia
Model	Jetson TX2 NX
Category	Computer Hardware
Language	English