Shenzhen, China – May 27, 2025 – MYIR today announces the launch of its latest embedded computing solution, the MYC-LMX91 System-on-Module (SoM), powered by NXP's energy-efficient i.MX 91 processor. This compact, high-performance module maintains full pin compatibility with MYIR's existing MYC-LMX9X (i.MX93) series, allows customers to scale their designs without hardware redesigns.
The MYC-LMX91 features a compact design, measuring just 37mm by 39mm, and utilizes the i.MX 91 Cortex-A55 MPU. It comes equipped with 1GB LPDDR4 RAM, 8GB eMMC storage, 32KB EEPROM, and a Power Management IC (PMIC), providing a solid foundation for your next embedded project. Leveraging the the full potential of the i.MX 91 SoC, the MYC-LMX91 supports a diverse range of peripherals, including 2x USB 2.0, 2x Gigabit Ethernet, 2x CAN-FD interfaces, 8x UART, 8x SPI, and RGB display interfaces, through a 218-pin LGA expansion interface. It is capable of running the Linux Operating System, making it perfect for applications such as EV Charging Stations, HMIs, Smart Home & Building Automation, Industrial Gateways, and Medical Platforms.
MYC-LMX91 SOM Top-view and Bottom-view
Features
- Dimensions: 37mm x 39mm
- PCB Layers: 10-layer design
- Power supply: 5V / 2A
- Working temperature: -40~85 Celsius (industrial grade)
- OS support: Linux 6.6.36
- Up to 1.4 GHz NXP i.MX 91 Arm Cortex-A55 processor (MIMX9131CVVXJAA)
- 1GB LPDDR4
- 8GB eMMC
- 32KB EEPROM
- Power Management IC
- 218-pin LGA Expansion Interfaces
* 2x RGMII
* 2x USB2.0
* 8x UART
* 2x CAN FD
* 8x I2C
* 2x I3C
* 8x SPI
* 1x RGB
* 3x SAI
* 1x uSDHC
* 4x ADC
* 1x JATG/SWD
Note: the peripheral signals brought out to the expansion interface are listed in maximum number. Some signals are reused. Please refer to the processor datasheet and SOM pin-out description file.
The MYD-LMX91 Development Board is a versatile solution for rapid prototyping and evaluation, built around the powerful MYC-LMX9X System-on-Module (SOM). It integrates a rich set of connectivity and expansion options, including dual Gigabit Ethernet ports, an M.2 B-Key socket for 4G/5G modules, onboard WiFi, an RGB display interface, audio input/output, two USB 2.0 host ports, one USB OTG port, and a Micro SD card slot. The MYD-LMX91 excels in industrial environments with its robust interface options, including CAN, RS485, and RS232 communications via reliable phoenix terminals, as well as a JTAG debug interface and ADC inputs. The MYD-LMX91 Development Board comes with a Quick Start Guide, one USB to TTL serial cable, and a 12V/2A power adapter. MYIR also offers optional add-ons, such as the MY-TFT070CV2 7-inch LCD Module, to enhance functionality.
MYD-LMX91 Development Board Top-view
MYD-LMX91 Development Board Bottom-view
The MYC-LMX91 SOM comes standard with 1GB LPDDR4 RAM and 8GB eMMC storage, with customizable memory and storage options for specific project needs. It offers excellent value at $38 per unit, with further savings on bulk orders, making it cost-effective for prototyping and production.
More information about the MYC-LMX91 can be found at:
https://en.myir.cn/iMX91/161.html（MYIR's new website)
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