28nm FD-SOI cryptocurrency ASIC first to debut in silicon, surpasses expectations with 0.45V operation


(Courtesy: SFARDS)
SFARDS’ SF3301 cryptocurrency ASIC is the world’s first chip to use 28nm FD-SOI. Surpassing expecttions, it operates at a stunning 0.45V. (Courtesy: SFARDS)

Right on schedule, the SFARDS cryptocurrency ASIC on 28nm FD-SOI has made its debut in silicon, and is surpassing expectations. In what is clearly a stunning success, the company announced that the ASIC’s lowest working voltage is 0.45V. This means it operates stably at a power supply voltage that’s about half that of competing 28nm offerings.

An article published on the SFARDS website (see the whole thing here) said, “Using the latest in FD-SOI processing technology, SFARDS has successfully completed its 28nm SF3301 dual-algorithm ASIC chip. The SF3301 is the world’s first chip to use this manufacturing process and is at the same time the world’s first 28nm dual-algorithm (SHA-256 & Scrypt) chip, capable of mining these two algorithms simultaneously or singularly.

“SFARDS’ SF3301 fully utilizes the advantages of the FD-SOI technology. This brings increased forward body bias; the chip is operational at lower voltage while maintaining a higher frequency. The chip boasts impressive power efficiency while affording high hash power, allowing for much lower wastage per hash. The ASIC’s lowest working voltage is 0.45V.”

As noted in ASN’s Buzz in March 2015 (read it here), cryptocurrency (the best-known example of which is Bitcoin) depends on “ledgers” supported by bitcoin “mining” chips.  As well-explained in an arstechnica piece (read it here), while some Bitcoin mining is done on CPUs and GPUs, serious mining requires much faster and lower power ASICs in the hardware.

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