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Software Expansion

The RISC-V Software ecosystem is expanding rapidly

Premier P550 Boards

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RISC-V Software Expansion

The RISC-V Software ecosystem is expanding rapidly

Premier P550 Boards

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SiFive Essential
S Series

S Series Gen 4

SiFive Essential™ S Series Gen 4 cores are 64-bit real-time CPUs designed for general purpose applications. Ideal for applications that require efficient performance in a power-constrained environment (e.g., real-time embedded, industrial, and IoT).

  • Highly configurable feature set
  • Scalable performance
  • 64-bit embedded RTOS support
  • 2-8 stage pipeline
  • Up to dual-issue superscalar
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SiFive Essential 
S Series Gen 4 Features

64-bit RISC-V core 

Up to 3.2 DMIPS/MHz, 5.7 CoreMark/MHz 

2-8 stage pipeline 

Coherent multicore capable with shared Level 2 cache 

Optional SECDED ECC support on Level 1 and Level 2 memories 

Up to 62-bit physical addressing 

64-bit RTOS support

Double, single and half-precision floating point 

Advanced security options including WorldGuard 

Configurable range of memory and SoC interface options 

  • Flexible and configurable port interfaces including IO coherent interface (front port) 
  • Direct, dedicated core local port for hardware peripheral / accelerator connectivity
  • Industry standard AMBA compliant bus protocols enable easy integration 

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S Series Gen 4 Product Briefs

Learn more about SiFive Essential S Series benefits! Download our product briefs today or contact our sales team with any questions.

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SiFive Essential Family

E Series
Essential
  • Highly configurable feature set
  • Scalable performance
  • 32-bit embedded
  • Up to 8-stage pipeline
  • Power & area optimized
  • Up to dual-issue superscalar
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U Series
Essential
  • Highly configurable feature set
  • Scalable performance
  • 64-bit embedded or 64-bit rich-OS
  • 8-stage pipeline
  • Up to dual-issue superscalar
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Core IP Families

Automotive
SiFive Automotive™ solutions provide a range of high-end application and real-time processors, delivering industry-leading performance, minimal area, and low power consumption. ISO 21434, ISO26262 ASIL B, ASIL D and split-lock certifications.
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Intelligence
Intelligence embraces a software-first approach to processor design, addressing the future needs of deploying ML and AI at the edge. It provides high-performance, scalable vector and matrix compute capabilities, adaptable to evolving workloads.
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Performance
The SiFive Performance™ family of RISC-V processors is designed for maximum throughput and performance efficiency for a range of application from datacenter workloads, ranging from Web servers and multimedia processing, Networking/Storage to consumer applications like TV, wearables and other smart devices requiring AI functionality.
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