Graperain RV1126B SoM Packs a Rockchip AI Vision SoC and 3 TOPS NPU

Graperain has introduced a compact SoM based on the Rockchip RV1126B AI vision processor. Designed for AIoT, machine vision, and intelligent video applications, the module combines a quad-core Cortex-A53 processor, a 3 TOPS NPU, and 4K video processing in a 42 × 42 mm form factor. It uses a 160-pin castellated (stamp-hole) design for integration with custom carrier boards.

The SoM is available with 1GB to 4GB of RAM and up to 256GB eMMC storage, and provides interfaces including dual MIPI CSI, Gigabit Ethernet, CAN, USB 3.0, SDIO, UART, I2C, PWM, and MIPI DSI for embedded and industrial applications.

Graperain RV1126B  SoM based on the Rockchip RV1126B AI vision processor with onboard LPDDR memory and eMMC storage.

Graperain RV1126B SoM Specifications:

• SoC: Rockchip RV1126B quad-core 64-bit Arm Cortex-A53 processor @ up to 1.6 GHz with a 2D Graphics Engine
• AI Accelerator: 3 TOPS NPU with support for INT4, INT8, INT16, and FP16 operations
• ISP: Built-in 12MP ISP and an 8MP AI-ISP (operates independently of the NPU)
• VPU:
  • Video Decoder: 4K @ 30fps H.264/H.265
  • Video Encoder: 4K @ 45fps H.264/H.265
• System Memory: 1GB or 2GB DDR3 standard (Customizable up to 4GB LPDDR4/LPDDR4X)
• Storage: 8GB, 16GB, 32GB, 64GB, 128GB, or 256GB eMMC flash
• Interfaces Via 160-pin Castellated-Hole Interface (1mm pitch):
  • Display: 1x MIPI DSI (up to 1920×1080 @ 60fps), 1x RGB (up to 1920×1080 @ 60fps)
  • Camera: 2x MIPI DPHY CSI (supports 2×4-lane or 4×2-lane), 1x DVP camera (8/10/12/14/16-bit). Supports simultaneous input from up to 5 cameras.
  • Audio: Integrated Audio Codec (2x SPK, 2x MIC), 3x SAI, 1x PDM (8 channels), I2S/TDM/PCM protocols
  • Networking: Gigabit Ethernet (1000Mbps)
  • USB: 1x USB 3.0 DRD, 1x USB 2.0 Host
  • Other I/Os: 1x SDIO 3.0, 2x CAN, 28x PWM, 6x I2C (7-bit/10-bit), 8x UART (UART0 for debug, UART1-7 support RS485), 8x SARADC (7x standard, 1x for boot)
• Power Supply: DC 12V
• Dimensions: 42 × 42 mm (8-layer PCB design)
• Operating Temperature: -20°C to 80°C (Storage: -30°C to 80°C)

On the software side, the Graperain RV1126B SoM supports Buildroot and Debian 12. Graperain also offers a development board for the module together with BSPs, SDKs, documentation, and sample code.

The Graperain module joins other Rockchip RV1126B-based SoMs, including the Forlinx FET1126Bx-S with a 40 × 40 mm hybrid stamp-hole/LGA design and the Boardcon Tiny1126B, which measures 34 × 30 mm and uses dual 100-pin board-to-board connectors. Compared to the original RV1126 based on Cortex-A7 cores with a 2 TOPS NPU, the RV1126B upgrades to quad-core 64-bit Cortex-A53 CPUs and a 3 TOPS NPU.

Front Side of Graperain RV1126B Development Board showing dual MIPI CSI, Gigabit Ethernet, USB, CAN, and GPIO

Rear view of the Graperain RV1126B Development Board showing the SD card slot, SIM card slot, RTC battery holder, SPI, and UART5 connectors.

To make the development process simpler, Graperain also offers an RV1126B Development Board. The board combines the RV1126B SoM with a carrier board, providing Gigabit Ethernet, dual USB 2.0, USB Type-C OTG, dual MIPI CSI camera connectors, MIPI DSI display, CAN, UART, GPIO expansion, TF card, 4G and Wi-Fi/Bluetooth module support, and other development interfaces. It supports Buildroot and Debian 12, making it suitable for evaluating and prototyping AI vision, machine vision, smart camera, and edge AI applications.

Pricing for both the SoM and the development board has not been disclosed. Additional product information is available from the Graperain product page.

Images used courtesy of Graperain