HiFive
Unmatched
Rev B

Freedom Unmatched

Based on the success of the HiFive Unleashed and Linux software ecosystem enablement, HiFive Unmatched ushers in a new era of RISC-V Linux development with a high performance development platform in a standard PC form factor.

HiFive Unmatched Rev B
Features & Specifications

The development board is powered by the SiFive Freedom U740 (FU740), an SoC that includes a high-performance multi-core, 64-bit dual-issue, superscalar RISC-V processor (SiFive Essential™ U74-MC) with 16GB of DDR4, Gigabit Ethernet, PCIe expansion, USB 3, and M.2 sockets for Wi-Fi, Bluetooth and NVMe storage. A 5th core (a SiFive Essential S71 monitor core) is available for real time applications. SiFive Mix+Match technology offers a potent combination of application and real-time processing. The S71 (RV64IMAC) can service auxiliary functions and cooperate with the U74-MC cluster, making this an ideal heterogeneous software development platform where Linux and a RTOS can co-exist.

The updated HiFive Unmatched Rev. B boards are available under Mouser part #115-HF105-001 and are ready for fulfillment from the warehouse in a couple of weeks from the time an order is placed.

SoC

SiFive Freedom U740 SoC

Memory

16GB DDR4

Flash Memory

32MB Quad SPI Flash

Removable Storage

MicroSD Card

Networking

Gigabit Ethernet Port

User I/O

4x USB 3.2 Gen 1 Type A Ports (1 Charging Port)

1x MicroUSB Console Port

Expansion Capabilities

x16 PCIe® Gen 3 Expansion Slot (8-lanes Useable)

M.2 M-Key Slot (PCIe Gen 3 x4) for NVME 2280 SSD Module

M.2 E-Key Slot (PCIe Gen 3 x1) for Wi-Fi / Bluetooth Module

Board Form Factor

Industry Standard Mini-ITX

Dimensions


170 mm

Long

170 mm

Wide

Advantages of HiFive
Unmatched Rev B

If you’re a serious software developer, kernel developer, or Linux hacker, we can think of a few reasons to use this board:

  • Port software to the RISC‑V platform
  • Evaluate the SiFive U74‑MC SoC
  • Want multi-core, Linux-capable RISC‑V hardware
  • Want to support open source hardware
  • Need to create the next great thing!