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Bit-tech Article: SiFive announces 64-bit 1.5GHz RISC-V HiFive Unleashed SBC

By February 7, 2018May 12th, 2021No Comments

Designed around the company’s own Freedom implementation of the RISC-V ISA, which is entirely open source for anyone to implement or modify at will with no licensing fees or royalties to pay, the HiFive Unleashed builds on SiFive’s earlier HiFive1 Arduino-style development board. Where the HiFive1’s 32-bit RISC-V processor was tailored for low-power microcontroller tasks, the HiFive Unleashed boasts a 64-bit Freedom U540 system-on-chip (SoC) with four primary U54 cores running up to 1.5GHz and a fifth E51 management core sharing a coherent 2MB L2 cache.
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