Freedom Everywhere
HiFive1 (Discontinued)
HiFive1 is a low-cost development board featuring the Freedom E310.
HiFive1 Features
and Specifications
Microcontroller
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
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
Weight
22 g
SoC
Freedom E310
FE310-G000 — Learn More
Dimensions
68 mm
Long
51 mm
Wide
Using HiFive1 (original)
Documentation & Support
Resources
New Version of HiFive1 Available
- Hardware I2C to read from digital sensors
- Additional UART to communicate with other peripherals
- Low-power sleep mode, keeping only the minimal amount of logic in the Always-On domain powered
- On board wireless networking
Check Out HiFive1 Rev B
What People
are Saying
“For those following the RISC‑V space, SiFive’s new Freedom E310 is a long-awaited milestone.”
William Wong — Technical Editor, Penton Media
“SiFive is providing innovative solutions that will fundamentally change the semiconductor industry.”
Stefan Dyckerhoff — Sutter Hill Ventures, Managing Director