RISC-V CPU IC

  • HT5000 Series

HT558x / HT538x Series

The 558X and 538X series are versatile CPU solutions for AI-driven and general-purpose applications. The 558X, powered by a 32-bit RISC-V core, serves as a host processor for Edge AI, managing tasks like CNN-based smart vision, LLM-driven text processing, and robotic control with low latency and high energy efficiency. The 538X, built on the 8051 core, delivers dependable performance for general tasks in compact, power-efficient systems. Both support a 1.8V to 28V range, eliminating external LDOs, and integrate with USB-C PD and ACDC/DCDC controllers, making them ideal for automotive, consumer, IoT, and robotic applications.

Real-Time AI

Low-latency controller

High-Voltage, Low-Power

1.8V–28V operating range

Modular, Open Source RISC-V

Deeply customizable architecture


The 558X offers flexible customization through its open RISC-V architecture, optimizing AI-specific features, while the 538X provides cost-effective, high-voltage operation. Together, they ensure efficient power management and seamless integration with advanced protocols, meeting the needs of diverse, high-performance designs.

Product Details

CPU Core Voltage Type Model Resources Videos
32 bit RISC-V 28–5V 32 bit RISC-V CPU for AI Accelerator HT5580T PATENTED Datasheet
8 bit 8051 20–1.8V HT5380 IEEE PAPER Datasheet

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