DART-MX91 :
NXP i.MX91

Starting from $35

Small-size i.MX 91 System on Module/Computer on Module – a versatile, cost-sensitive solution.

The DART-MX91 features an energy-efficient architecture, robust security, industrial-grade temperature support, and a wide range of high-speed connectivity options—all within Variscite’s compact 55x30mm DART SoM footprint. Powered by the 1.4GHz Cortex™-A55 NXP i.MX 91 processor, the DART-MX91 is equipped with dual CAN-FD, dual GbE, dual USB, certified Wi-Fi6 802.11 ax/ac/a/b/g/n, with BT/BLE 5.4 and optional 802.15.4.

The DART-MX91 is compatible with Variscite’s DART Pin2Pin family, ensuring seamless scalability and an easy migration path to meet diverse performance and feature requirements—from entry-level platforms to high-performance solutions.
For the complete Pin2Pin product list, check out 
Variscite’s Pin2Pin System on Module product families.

* The Pin2Pin compatibility depends on pinmux options; please verify the detailed pinout table in the related SoM to confirm compatibility is maintained in your specific design.

​** Variscite’s i.MX 91 System on Module (SoM) is in development at this stage. The information on this page is subject to change without notice. For additional information contact us.

  • iso 9001:2015
  • iso 14001:2015
  • iso 13485:2016
  • platinum partner nxp

Specifications

CPU

Up to 1.4GHz Single Cortex-A55 NXP i.MX91

High Speed Interfaces

2x USB2.0, 2x GbE

Dimensions

Only 55 x 30 mm

Certified WiFi/BT

Wi-Fi 6 802.11 ax/ac/a/b/g/n with optional 802.15.4 and BT/BLE 5.4

Temperature range

-40 to 85°C

Product Longevity

2039

Pin2pin Family

DART Pin2Pin family

CPU Name

NXP i.MX 91

CPU Type

Cortex™-A55

CPU Cores

1 core

CPU Clock (Max)

Up to 1.4GHz

RAM

512MB – 2GB LPDDR4

eMMC

8 – 128 GB

Multimedia

Camera Interfaces

8bit Parallel

Display

Parallel RGB

1366x768p60 or 1280x800p60

Touch controller

Capacitive

Audio

Headphone driver

Yes

Microphone

Digital, Analog (stereo)

Digital audio serial interface

3 x I2S(SAI),S/PDIF,RX TX, PDM 4CH

Line In/Out

Yes

Connectivity

SD / MMC

x2

UART

x8, up to 5 Mbps

I2C

x7

I3C

x2

SPI

x7

CAN Bus

x2

RTC

On carrier

JTAG

x1

ADC

x4

Networking

Ethernet

2x 10/100/1000 Mbps

Wi-Fi

Certified Wi-Fi 6 dual-band 802.11ax/ac/a/b/g/n with optional 802.15.4

Bluetooth

BT/BLE5.4

Linux

Yocto, Debian

Mechanical Specifications

Dimensions (W x L)

55 x 30mm

Electronic Specifications

Supply voltage

3.3V or 3.4-5V

Digital I/O voltage

3.3V/1.8V

Environmental Specifications

Commercial operating temperature

0 to 70°C

Extended operating temperature

-25 to 85°C

Industrial operating temperature

-40 to 85°C

Storage temperature

-40 to 85°C

Storage humidity

5% to 95%

DART-MX91[x]_[xxxx]C_[xxxx]R_[xx]G_[AC]_[EC]_[WBD/WBE]_[SDEX]_[X]T

MX91[x]:

Processor type:
i.MX 9131 single core

[xxxx]C:

CPU clock speed: 1400MHz: 1400C

[xxxx]R:

LP-DDR4: 512 MB: 512R, 1536 MB: 1536R, 2048 MB: 2048R

[xx]G:

eMMC: 8 GB : 8G, 16 GB : 16G, 32 GB : 32G, 64 GB : 64G

[AC]:

Audio Codec

[EC]:

GbE PHY (second port always via RGMII)

[WBD/WBE]

WBD: Built-in certified single band Wi-Fi 802.11 ax/ac/a/b/g/n + BT/BLE 5.4
WBE: Built-in certified single band Wi-Fi 802.11 ax/ac/a/b/g/n + BT/BLE 5.4 + 802.15.4

[SDEX]

Default: no extra SDIO
SDEX: extra SDIO port, available only when no WBD/WBE is selected

[x]T:

C : 0 to 70°C, E: -25 to 85°C, I : -40 to 85°C

Note: All options in [brackets] are optional add-ons that can be either removed or selected from a list of options

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Estimated Quantities