Freedom Everywhere
SiFive HiFive1 is an Arduino-compatible development board featuring the SiFive Freedom E310 (FE310) SoC, making it the best way to prototype and develop RISC-V software.
Discontinued
SiFive HiFive1 is an Arduino-compatible development board featuring the SiFive Freedom E310 (FE310) SoC, making it the best way to prototype and develop RISC-V software.
Designed for microcontrollers and edge computing, the FE310 instantiates a SiFive Essential™ E3 Series CPU Core Complex, a high performance 32-bit RV32IMAC core. Additional features include a 16KB L1 Instruction Cache, a 16KB Data SRAM scratchpad, hardware multiply/divide, a debug module, flexible clock generation with on-chip oscillators and PLLs, and a wide variety of peripherals including UARTs, QSPI, PWMs, and timers. Multiple power domains and a low-power standby mode ensure a wide variety of applications can benefit from the FE310.
Software development is accelerated with the onboard FTDI FT2232 JTAG debugger connecting over USB to SiFive Freedom Studio, an Eclipse-based IDE. Additionally, your JTAG probe of choice can be connected and used with your favorite debugger and IDE. Freedom Studio is packaged with a prebuilt toolchain and example software projects. Alternatively, the SiFive Freedom Tools download package includes a pre-built toolchain, debugger, and additional command line tools that can be plugged into your own bespoke development environment.
FE310-G000
Operating Voltage
3.3 V and 1.8 V
Input Voltage
5 V USB or 7-12 VDC Jack
IO Voltages
Both 3.3 V or 5 V supported
22 g
Digital I/O Pins
19
PWM Pins
9
SPI Controllers/HW CS Pins
1/3
External Interrupt Pins
19
External Wakeup Pins
1
Flash Memory
128 Mbit Off-Chip (ISSI SPI Flash)
Host Interface (microUSB)
Program, Debug, and Serial Communication