SiTime Tech Could Be Used in Billions of Renesas Chips
SiTime’s technology could ultimately be embedded in billions of chips made by Japan’s Renesas, SiTime’s chief executive said, following a landmark acquisition deal between the two firms. SiTime shares surged nearly 18% after the company announced a transaction worth up to $3.2 billion to acquire timing assets from Renesas.
SiTime expects the acquired assets to generate about $300 million in revenue in the first year after the deal closes, anticipated by the end of 2026—nearly doubling the company’s fiscal 2025 sales. The agreement also brings Renesas CEO Hidetoshi Shibata onto SiTime’s board and includes plans for Renesas to integrate SiTime’s timing technology into its chips.
At the center of the deal is SiTime’s resonator technology, which is smaller and more resilient to temperature changes than traditional solutions. That makes it especially suitable for automotive applications, a core market for Renesas microcontrollers. SiTime CEO Rajesh Vashist said the collaboration could result in the first microcontrollers that require no external timing components.
While revenue impact will take time due to design, qualification, and production cycles, Vashist said the scale could be vast. If widely adopted across Renesas products, the technology could be integrated into billions of chips over the coming years, marking a major expansion opportunity for SiTime.



