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Nvidia JETSON XAVIER NX Design Guide

Nvidia JETSON XAVIER NX
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SD Card and SDIO
NVIDIA Jetson Xavier NX DG-09693-001_v1.7 | 63
Parameter
Requirement
Units
Notes
HDI
10
Via proximity (Signal to reference)
< 3.8 (24) mm (ps)
Up to four signal vias can share 1
GND
return via
Trace spacing Microstrip / Stripline 4x / 3x
dielectric
Trace length
SDR50 / SDR25 / SDR12 / HS / DS
Min
Max
SDR104 / DDR50
Min
Max
16 (100)
139 (876)
16 (100)
83 (521)
mm (ps)
Max trace length/delay skew in/between
CLK
and
CMD
/
DAT
SDR50 / SDR25 / SDR12 / HS / DS
SDR104 / DDR50
14 (87.5)
2 (12.5)
mm (ps)
See Note 3
Keep CLK, CMD and DATA traces away from other signal traces or unrelated power traces/areas or power supply components
Notes:
1. Actual frequencies may be lower due to clock source/divider limitations.
2. If PWR, 0.01uF decoupling cap required for return current.
Table 10-3. SD Card and SDIO Signal Connections
Function Signal Name
Type
Termination
Description
SDMMC_CLK O
SD Card / SDIO Clock: Connect to CLK pin of device.
SDMMC_CMD I/O
SD Card / SDIO Command: Connect to CMD pin of device
SDMMC_D[3:0] I/O SD Card / SDIO Data: Connect to Data pins of device
GPIO I SD Card Detect (Optional):
Connect available GPIO on module to
CD
pin of SD Card socket.

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Nvidia JETSON XAVIER NX Specifications

General IconGeneral
Storage16 GB eMMC 5.1
AI Performance21 TOPS (INT8)
Operating Temperature-25°C to 80°C
Operating SystemLinux (JetPack SDK)
GPUNVIDIA Volta architecture with 384 CUDA cores and 48 Tensor cores
CPU6-core NVIDIA Carmel ARMv8.2 64-bit CPU 6 MB L2 + 4 MB L3
Memory8GB 128-bit LPDDR4x
Video Decode2x 4K60 | 4x 4K30 | 8x 1080p60 | 16x 1080p30 (H.265/H.264)
CameraUp to 6 cameras
ConnectivityGigabit Ethernet, M.2 Key E for Wi-Fi/Bluetooth
Power10 W / 15 W / 20 W
Dimensions70mm x 45mm

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