TOPST D3-G is a single board computer (SBC) utilizing a Telechips TCT8050 “Dolphin3/3M” 9-core automotive-grade SoC featuring four Cortex-A72 cores, four Cortex-A53 cores, and a real-time Cortex-R5 core.
The board comes with 4GB or 8GB LPDDR4 RAM, 32GB eMMC flash, a microSD card slot for storage, a Gigabit Ethernet port, a DisplayPort 1.2 connector supporting four displays via MST, two MIPI CSI connectors, a PCIe Gen3x1 slot, multiple USB ports, a 40-pin GPIO header compatible with Raspberry Pi HAT+, and three CAN Bus interfaces.
TOPST D3-G specifications include:
– SoC: Telechips TCC8050 (Dolphin3)
– CPU (45,180 DMIPS): Quad-core Arm Cortex-A72 @ 1.69 GHz (31,840 DMIPS), Quad-core Arm Cortex-A53 @ 1.45 GHz (13,340 DMIPS)
– Real-time MCU core: Arm Cortex-R5 @ 600 MHz
– GPU: Imagination Technologies PowerVR 9XTP (GT9524) up to 168 GFLOPS; APIs: OpenGL ES 1.1/2.0/3.2, Vulkan 1.2, OpenCL 2.0/3.0
– System Memory: 4GB or 8GB 32-bit LPDDR4X @ 2133 MHz
– Storage: 32GB eMMC flash, MicroSD card slot
– Video Output: DisplayPort 1.4 connector (4-lane, 8.1 Gbps/lane); up to 4x displays via MST (1x 4K60 + 3x 1080p60 or 4x 1080p60), daisy-chaining up to 3x 1080p60 displays
– Camera: 2x 15-pin 2-lane MIPI CSI connectors for 5MP camera modules
– Networking: Gigabit Ethernet RJ45 port
– USB: 1x USB 3.0 Type-A port, 1x USB 2.0 Type-A Host port, 1x USB 2.0 Type-C Device port
– Vehicle Signals: 10-pin 3x CAN Bus header
– Expansion: PCIe 3.0 x1 slot, 40-pin GPIO header with I2C, SPI, UART, I2S, PWM, GPIOs; Raspberry Pi HAT compatible
– Debugging: 10-pin JTAG – Cortex Debug header, 3-pin UART header
– Power Supply: 5V @ 5A via DC jack
– Dimensions: 120 x 90 mm
Telechips offers a Linux SDK based on Yocto Project 4.0 Kirkstone and supports Ubuntu 22.04 rootfs. Development requires a Windows (WSL2) and Linux computer with at least 60 GB storage and 16 GB RAM. The SDK is based on Linux 5.10 LTS, supported till December 2026. Documentation and resources for sensors and actuators interface are available on the documentation website.
Telechips, previously prominent from 2012-2016 with chips like the TCC8925 Cortex-A5 SoC in HDMI TV dongles and Android TV boxes, now focuses on automotive SoCs for infotainment and driver-assistance systems. The Telechips TCT8050 Dolphin 3M SoC resurfaced through the Open-EP e-Paper project interfacing a 4.26-inch grayscale ePaper display with the TOPST D3-G board.
TOPST, a Telechips trademark, sells the D3-G SBC only in South Korea, with the 4GB model costing 161,000 Wons (~$110 US) and the 8GB model 189,000 Wons (~$129 US). Global availability is anticipated in due time. Further details and purchase links for Korean users are on the product page.