AMI Adds Renesas DDR5 I3C Bus Extension and SPD Devices to Approved Vendor List for MegaRAC SP-X BMC Firmware

DULUTH, GEORGIA / TOKYO, JAPAN – AMI®, a firmware and software solutions partner of Renesas Electronics Corporation, is pleased to announce the qualification of Renesas I3C bus extension products for its MegaRAC® SP-X Remote Management Firmware. Adding these I3C devices from Renesas to AMI’s approved vendor list enables an easy migration path for customers shifting their DDR5 platforms and boards from I2C or other legacy expansion specifications to the new high-speed I3C specification.

The IMX3102 2:1 bus multiplexer, IMX3112 1:2 bus expander and DDR5 SPD Hub SPD5118 devices from Renesas provide maximum design flexibility for engineers implementing I3C Basic as a system management bus for control plane designs across a variety of applications, including datacenter and server applications, enterprise, factory automation and communications equipment. These Renesas IMX and SPD devices are ideal when there may be multiple masters, a large number of endpoint devices and long traces – all of which can impact bus complexity and signal intensity.

As DDR5 continues to gather momentum in the industry, the I3C interface is gaining acceptance as a high-speed control interface for applications requiring faster communication between host and peripheral or secondary devices. I3C’s 12.5 MHz speeds significantly outpace current and legacy solutions, such as the I2C 1 MHz speed and analog passive quick switches.

“The next-generation I3C interface meets industry needs driven by aggressive datacenter growth, increased demand for security infrastructure and more efficient hardware in industrial, automotive and telecommunications systems. AMI is proud to qualify these latest DDR5 I3C bus extension and SPD hub devices from Renesas in its MegaRAC SP-X Remote Management Firmware,” said Kelly Bryant, Chief Product Officer at AMI. “AMI has an extensive, industry-leading boot and manageability firmware ecosystem that supports many components and for many years, top manufacturers such as Renesas have seen the value in qualifying their products for our firmware solutions. Thanks to our strong partnership with Renesas, our validation for its latest, leading-edge I3C products will enable us to deliver improved firmware and software solutions and expand support to our mutual customers.”

“Industry transformations such as the migration of control plane designs to the faster and more robust I3C standard require broad ecosystem support at both hardware and software levels in order to be successful,” said Rami Sethi, Vice President and General Manager of the Data Center Business Division at Renesas. “Partnering with industry-leading firmware providers like AMI has been a priority to deliver the superior ‘out-of-the-box’ experience that our customers and ecosystem partners have come to expect from us.”


Renesas’ I3C devices and evaluation boards are available now. For additional information, visit and

For more information on MegaRAC SP-X Remote Management Firmware, please visit

About Renesas

Renesas Electronics Corporation delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, infrastructure, and IoT applications that help shape a limitless future. Learn more at

About AMI

AMI provides industry-leading foundational technology and security solutions enabling the world’s compute platforms Power Up, Stay On, and Run Secure from on-premises to the cloud to the edge, each time, every time. AMI is a crucial provider to the Open Compute ecosystem and is a member of numerous industry associations and standards groups, such as the Unified EFI Forum (UEFI), PICMG, National Institute of Standards and Technology (NIST), National Cybersecurity Excellence Partnership (NCEP), and the Trusted Computing Group (TCG). Founded in 1985 and headquartered in Duluth, Georgia, AMI has locations in the U.S., China, Germany, Hong Kong, India, Japan, Korea and Taiwan to better serve its global customers. For more information, visit or follow us on LinkedIn and Twitter @AMI_PR.

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