Tiny STM32MP135 system-on-module comes with up to 512MB RAM, 256MB NAND flash or 4GB eMMC flash

MYiR Technology’s MYC-YF13X is a system-on-module powered by the latest STMicro STM32MP135 cost-optimized Cortex-A7 microprocessor with 256MB or 512MB DDR3L, 256MB NAND Flash or 4GB eMMC flash, and 32Kbit EEPROM.

The new MYC-YF13X has the same 39x37mm stamp-size form factor as the company’s earlier MYC-YA15XC-T CPU module based on the STM32MP15 Cortex-A7 processor, and a development board is also provided with LCD and camera interfaces, dual Gigabit Ethernet, RS485/RS232/CAN bus interfaces, and more.

STM32MP15 system-on-module

MYC-YF13X specifications:

  • SoC – STMicro STM32MP135 (STM32MP135DAF7) single-core Cortex-A7 processor up to @ 1 GHz
  • Two configurations for memory and storage
    • 256MB DDR3L, 256MB NAND Flash, 32KB EEPROM or
    • 512MB DDR3L, 4GB eMMC Flash, 32KB EEPROM
  • 148-pin stamp hole expansion interface (1.0mm pitch)
    • Display I/F – RGB Interface
    • Camera – Parallel camera
    • Audio – 4x I2S, 2x SAI
    • Networking – 2x RGMII interface
    • USB – 2x USB 2.0
    • Up to 8x UART
    • Up to 5x I2C
    • Up to 2x ADC
    • 2x SDIO
    • 2x SCI
    • 2x CAN FD
    • Up to 108x GPIOs
  • Power supply – 5V/1A
  • Dimensions – 39 x 37mm (10-layer PCB design)
  • Temperature Range – Industrial: -40~85°C
MYC-YF13X CPU Module  Block Diagram
Block diagram

MYiR provides a Linux 5.15 BSP for the module with the source code for all drivers, U-boot, and Linux, as well as two root file systems built with the Yocto project: a core image without GUI, and a full-features image.

The company also designed the MYD-YF13X development board as an evaluation platform for the MYC-YF13X CPU module. The carrier board brings out two Gigabit Ethernet interfaces, RS232, RS485, and CAN bus interfaces, USB 2.0 host and OTG interfaces, a mini PCIe socket for 4G LTE USB modules, as well as an LCD interface, a camera interface, an audio jack, as well as extension headers.

MYC-Y135 development board

The development kit ships with a USB to UART cable, a 12V/2A power adapter, a DC power jack adapter, and a Quick Start Guide. The MYC-YF135-256N256D-100-I module (256MB RAM, 256MB NAND flash) sells for $19, while the MYC-YF135-4E512D-100-I CPU module (512MB RAM, 4GB eMMC flash) goes for $22.50. The MYD-YF13X development board is sold for $69 or $75 depending on the selected module. You’ll find more details and the purchase links on the product page.

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