Graperain GR3576_CV2 – A Rockchip RK3576 260-pin SO-DIMM SoM with up to 16GB RAM

Graperain GR3576_CV2 is a 260-pin SO-DIMM system-on-module (SoM) powered by a Rockchip RK3576 octa-core Cortex-A72/A53 SoC with a 6 TOPS NPU, and equipped with up to 16GB RAM and 256GB eMMC flash.

The module supports up to six different display interfaces from HDMI to EBC for e-Paper displays, three camera inputs, a range of audio inputs and outputs, as well as USB 3.2, PCIe 2.1, and SATA interfaces, and plenty of other I/Os.

Graperain GR3576_CV2 specifications:

• SoC – Rockchip RK3576
  • CPU – Octa-core  CPU with 4x Cortex-A72 cores at 2.2GHz, 4x Cortex-A53 cores at 1.8GHz
  • GPU – Arm Mali-G52 MC3 GPU with support for OpenGL ES 1.1, 2.0, and 3.2, OpenCL up to 2.0, and Vulkan 1.1
  • NPU – 6 TOPS (INT8) AI accelerator with support for INT4/INT8/INT16/BF16/TF32 mixed operations.
  • VPU
    • Video Decoder
      • H.265, VP9, AV1, and AVS2 up to 8Kp30 or 4Kp120
      • H.264/AVC and MJPEG up to 4Kp60
    • Video Encoder – H.264, H.265, MJPEG up to 4Kp60
• System Memory – 2GB (default), 4GB, 8GB, or 16GB LPDDR4/LPDDR4x
• Storage – 8GB, 16GB (default), 32GB, 64GB, 128GB, or 256GB eMMC flash
• 260-pin SO-DIMM edge connector (not compatible with Jetson Nano/NX, we’ve asked)
  • Video Output
    • HDMI 2.1 up to 4K @ 120Hz
    • eDP 1.3 up to 4K @ 60Hz
    • DisplayPort 1.4 up to 4K @ 120Hz
    • MIPI DSI up to 2560×1600 @ 60fps
    • EBC up to 2560×1920 @ 60fps for E-Ink electronic paper displays (EPD)
    • RGB LCD up to 1920×1080 @ 60fps
  • Video Input
    • 2x MIPI DPHY CSI (1x 4 lanes or 2x 2 lanes)
    • 1x MIPI DCPHY CSI (4/2/1-lane configuration)
  • Audio
    • 2x SAI (4T/4R), 3x SAI(1T/1R) with support for I2S/TDM/PCM
    • 2x SPDIF Tx & Rx (8 channels, up to 24-bit resolution)
    • 2x PDM (8 channels)
  • USB
    • USB 3.2 Gen1 OTG0, multiplexed with DP 1.4
    • USB 3.2 Gen1 OTG1, multiplexed with PCIe 2.1/SATA3.1
  • Networking – 2x Gigabit Ethernet interfaces
  • PCIe/SATA
    • PCIe 2.1/SATA 3.1/USB 3.2 Gen1 Combo
    • PCIe 2.1/SATA 3.1 Combo
  • Other peripherals
    • 2 x SDIO 3.0
    • 16x PWM, GPIO
    • 10x I2C, 2x I3C
    • 12x UART with  1x Debug UART, 11x with RS485 support
    • 2x CAN FD
    • Analog – 7x SARADC, and 1x SARADC only for boot (unclear why)
• Supply Voltage – 5V
• Dimensions – 69.6 x 48.1mm (8-layer PCB)
• Weight – TBD
• Temperature Range – Operating: -20°C to 80°C; storage: -30°C to 80°C
• Humidity – Storage: 10% to 80% RH (non-condensing)

Graperain provides support for Android 14 for consumer electronics and HMI interfaces, and Ubuntu 22.04 and Debian 11 Linux distributions for industrial control and edge computing. Buildroot support is provided to generate customized, lightweight embedded Linux images.

The official Rockchip Android/Linux BSPs are provided with the source code for U-Boot, Linux Kernel, and rootfs customization, while the embedded 6 TOPS NPU is supported by the RKNN-Toolkit. The documentation and SDK/BSP are not available publicly and are only offered to customers.

Graperain also designed a Rockchip RK3576 development board comprised of the GR3576_CV2 SO-DIMM system-on-module and the GR3576MB V1.2 carrier board with the following specifications:

• Supported SoM – GR3576_CV2 described above
• Storage
  • Optional NVMe SSD via M.2 2242/2260/2280 socket
  • MicroSD card slot
• Video Output
  • HDMI 2.1
  • DisplayPort 1.4 via USB-C port
  • MIPI DSI LCD display connector
• Camera Interfaces – 2x MIPI CSI connectors
• Audio
  • 3.5mm headphone jack
  • Built-in microphone
  • 2x speaker connectors
  • Digital audio via HDMI
• Networking
  • 2x Gigabit Ethernet RJ45 ports
  • WiFi and Bluetooth module and 2x u.FL antenna connector
  • Optional 4G LTE connectivity via mini PCIe module and SIM card holder
• USB  – 3x USB 3.0 ports
• Serial
  • CAN Bus connector
  • 3x UART connector
  • 2x RS485 connectors
• Expansion
  • M.2 socket
  • 10-pin ADC header
• Debugging – UART Debug connector
• Misc
  • Power, Boot, Upgrade, and Reset buttons
  • RTC with coin-cell battery
  • Fan connector
• Power Supply – 12V DC via power barrel jack
• Dimensions – 130 x 90mm (4-layer PCB)
• Temperature Range – Operating: -20°C to 80°C; storage: -30°C to 80°C
• Humidity – Storage: 10% to 80% RH (non-condensing)

Target applications for the RK3576 SoM include PoS machines, handhelds, digital signage, GPS navigation systems, HMIs, monitoring equipment, video conferencing systems, and more. Pricing information is not provided publicly. For reference, the Fireflix Core-3576JD4 SO-DIMM SoM with RK3576, 4GB RAM, and 32GB is sold for $119. More details about the Graperain SoM and development kit can be found on the product page.

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