New Generation Advanced USB Graphics Processor
T8-688 IC Solution
As the latest-generation member of the Trigger family, the T8-688 integrates high-performance USB graphics processing, multi-display processing, UHD video capture, embedded processing, memory control, and various multimedia codec and display interfaces into a single ASIC.
The T8-688 can use two USB 3.1 Gen 1 operations to achieve data rates up to 10 Gbps transferring. Its USB OTG architecture provides flexible USB Host and USB Device operation.
The T8-688 integrates three independent display pipelines, each capable of generating an independent display stream and driving a configurable HDMI 2.0 or DisplayPort 1.4 display output interface. Each display output supports resolutions up to UHD 3840 × 2160 at 60 Hz (4K60).
The T8-688 also integrates a UHD video capture engine with one configurable HDMI 2.0 or DisplayPort 1.4 video capture input interface, supporting video capture resolutions up to UHD 3840 × 2160 at 60 Hz.
A RISC-V multi-cores processor, and multiple peripheral interfaces are also integrated to reduce external component requirements and overall system complexity.
With its combination of MCT proprietary USB graphics technology and intellectual property, high-speed USB connectivity, three independent display pipelines, UHD video capture, embedded processing, and multimedia interfaces, the T8-688 enables a flexible single-chip platform for USB display solutions, UHD 4K display dongles, multi-display docking stations, video capture devices, video conferencing systems, KVM solutions, embedded display systems, industrial applications, and other USB-based graphics and multimedia products.
Chip Architecture

Key Features
High-Speed USB Connectivity
The T8-688 can use two USB 3.1 Gen 1 port operations to achieve the data rates up to 10 Gbps transferring. Its USB OTG architecture provides flexible USB Host and USB Device operation.
Three Independent Display Pipelines
The T8-688 integrates three independent display pipelines, each driving a configurable HDMI 2.0 or DisplayPort 1.4 interface, with support up to UHD 3840 × 2160 @ 60 Hz (4K60).
UHD Video Capture
The T8-688 integrates a UHD video capture engine with one configurable HDMI 2.0 / DisplayPort 1.4 video capture input interface, supporting capture resolutions up to UHD 3840 × 2160 @ 60 Hz.
Embedded Processing & System Integration
A RISC-V multi-cores processor and multiple peripheral interfaces are integrated to reduce external component requirements and overall system complexity.
- CPU: RISC-V
- GPU: UVPU / processor
- Memory: 32-bit DDR3 / DDR3L memory controller
- Two configurable USB 3.1 Gen 1 / USB 2.0 OTG interfaces
- Up to 3 independent HDMI 2.0 / DP1.4 display output interfaces
- UHD 2.0 video capture engine
- Adaptive Hybrid Algorithm Compression
- H.265 / H.264 / JPEG encode/decode
- Flexible I/O including I²C, SPI, UART, PWM, GPIO and IR
- 418-ball BGA package
Related Applications
USB Graphics
Multi Stream Display
Docking and Multi-Display
Video Capture and Multimedia
KVM and Embedded
Application Case 1

- Triple Display USB-C to 4K60 HDMI display adapter
- Triple Display USB-C to 4K60 DisplayPort display adapter
- Triple Display USB-C to 4K60 HDMI and 4K60 DisplayPort display adapter
- Triple Display USB-C to 4K60 HDMI and 2K60 DisplayPort display adapter
- Dual Display USB or USB-C to 4K60 HDMI display adapter
- Dual Display USB or USB-C to 4K60 DisplayPort display adapter

Application Case 2

- Wired Display HDMI / DisplayPort w/ IR remote control signal over IP extender
- Wireless Display HDMI / DisplayPort w/ IR remote control signal over IP extender

T8-688 Specifications
| Category | Details |
|---|---|
| USB Interface |
|
| Multi-Display Output |
|
| UHD Video Capture |
|
| Embedded Processing | Integrated 4 core RISC-V processor |
| Memory Controller |
|
| Audio and Multimedia |
|
| Video Images Codec Compression |
|
| Peripheral Interfaces |
|
| Clock |
|
| Operating System Support |
|
| Package |
|

