Embedded Module TQMa91xxLA Embedded Cortex®-A55 module based on i.MX 91xx

Arm® Cortex® A55 based on i.MX 91xx

  • High-speed communication via 2x Gbit Ethernet (1x TSN), 2x USB 2.0 interface
  • Low power consumption (typ. 2W)
  • Integrated security functions
  • Advanced Secure Element SE050
  • Gyroscope sensor
The Minimodule TQMa91xxLA, based on the i.MX 91 from NXP, combines the Arm® Cortex®-A7 core technology with a variety of interfaces. The LGA module has been developed especially for the use in high volume projects. The integrated graphics controller supports applications with display and touch screen requirements. TQMa91xxLA is best suited for various applications such as industrial automation and controls with requirements for low power and secure data processing.

CPU/Processor data

  • Cortex®-A55 - Up to 1,4GHz
CPU variant:
  • i.MX 91x1 Single Core


  • Up to 2GB
  • Up to 256 MB
  • Up to 256 GB
  • 0/64-kbit


Graphic interface:
  • LCD interface: 1x 24 Bit RGB

Communication interfaces

  • Up to 2x Gbit-Ethernet (1x TSN)
  • Up to 2x USB 2.0
  • Up to 2x CAN FD
Serial Ports:
  • Up to 8x UART

Other interfaces

SD Card:
  • Up to 3x SDIO / eMMC
  • Up to 8x I²C
  • Up to 8x SPI
  • Up to 1x QSPI
  • Up to 7x I²S
  • Up to 8x PDM Mic.
  • Up to 1x SPDIF
  • JTAG

Other functions

  • Real Time Clock (RTC)
Secure Element:
  • SE050 (optional)
  • Temperature sensor
  • Gyroscope sensor

General data/basic data

  • 38 x 38 mm
Temperature range:
  • Standard temperature range: -25°C…+85°C
  • Extended temperature range: -40°C...+85°C
Plug-in System:
  • LGA (Land Grid Array) 281 pins
Power supply:
  • 5 V


OS Support:
  • Linux
  • Free RTOS

User Manual TQMa91xxLA (1 MB, pdf)

User Manual MBa91xxCA (1 MB, pdf)

TQMa91x1LA-AA (Prototypes Q1/2024)

TQMa91x1LA-AA, Single Cortex®-A55/1,4 GHz, 8 GB eMMC Flash, 1GB LPDDR4, 64 kB EEPROM, RTC, -25°C...+85°C

STKa91xxLA-AA (Prototypes Q1/2024)

STKa91xxLA (Eval Kit) with TQMa91x1LA-AA, Single Cortex A55/1,4 GHz, 1 GB LPDDR4, 8 GB eMMC Flash, 64 kB EEPROM, RTC, 2x USB 2.0 HOST, 1x USB Type C, 2x ETH 10/100/1000, 2x CAN FD, 1x RS485, 1x LVDS, 1x MIPI CSI, 1x DP,  1x Mini PCIe + SIM Card (USB only), WLAN, Temperature sensor, Reset-Button, Micro SD Card interface, Power Supply, 8 GB SD card, Cables, Connectors

Starterkit STKa91xxLA set

The core of the STKa9xxLA set is the TQMa93xxLA module with a Single Cortex®-A55 CPU. The components contained in the starter kit constitute a modular system enabling you to develop your own product ideas. Development of graphic interfaces can be started immediately using the prepared combination of closed display unit and starter kit that are matched to each other. To develop your own hardware you can use the certified and qualified circuit components of the starter kit in your own designs.


Comprehensive information from the software area such as BSP documentation, tutorials, FAQs, sample codes and are available in our Support Wiki.


Application examples


Our USPs

  • Unbeatable long-term availability
  • Robustness for all applications
  • The most comprehensive range of modules on the market
  • A comprehensive design and support of an E²MS manufacturer
  • Full design freedom, as all processor functions are fully accessible
  • x86 for tough industrial use

Embedded downloads

Current downloads such as product data sheets, manuals, application notes as well as software and drivers can be found in the Download Center.


TQ-Embedded news

All the latest news about TQ-Embedded and our products as well as press releases can be found in our news overview.