TI AM68 / AM68A
The AM68A (J721S2 family) is TI’s mid-range vision AI processor. It has two Cortex-A72 cores, Cortex-R5F real-time cores, an 8 TOPS C7x/MMA accelerator that can only run deep-learning workloads, and a VPAC ISP. The AM68 is the general-purpose version without AI acceleration. Both run on the SK-AM68 starter kit.
General Specifications
Specs
| SoC | TI AM68A |
|---|---|
| CPU | 2× Cortex-A72 @ 2 GHz Cache: L2 1 MB |
| MCU | 4× Cortex-R5F @ 1000 MHz |
| Memory | LPDDR4-4266 Inline ECC |
| GPU | BXS-4-64 @ 800 MHz Mesa: Vulkan 1.2 (PowerVR, powervr kernel) |
| NPU | C7x DSP + MMA, 8 TOPS Deep-learning only on AM68A |
| VPU | H.264 / H.265 encode and decode |
| ISP | 480 MPixel/s |
| Display | eDP, 2× MIPI DSI, MIPI DPI |
| PCIe | 1× PCIe Gen 3 |
| USB | 1× USB 3.0 (dual-role, Type-C switching) |
| CAN | 20× CAN-FD |
| Temperature | -40 °C to 105 °C |
Linux Support
Vendor BSP
- TI Processor SDK Linux (11.00, May 2025) and Edge AI SDK
- Armbian community images for the SK boards
Mainline kernel
- Fully supported
- Works but not all features are implemented (K3 J721S2 / J784S4 platforms)
- The BXS-4-64 GPU is supported by the open-source PowerVR (
imagination) Mesa and kernel drivers, which are under active development