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By Brian Tristam Williams
Renesas Electronics has acquired Pictorus, a California software developer whose browser-based tools let engineers model, simulate and generate embedded control software. The Renesas Pictorus acquisition adds cloud behavioural modelling to Renesas 365, the system-design and lifecycle platform being built around Altium and Renesas’ own silicon and toolchains.
The company said a Renesas subsidiary had completed the deal and confirmed the deal on 18 June. Pictorus is based in Oakland and focuses on model-based development for control systems, with generated code in Rust and interoperability with C/C++ and Python. The deal pushes Renesas further into the software layer that sits between component selection, system modelling, embedded implementation and device management.
Pictorus gives engineers a way to describe behaviour using block diagrams in a web browser, then simulate and turn those diagrams into executable embedded software. That fits the direction Renesas set for Renesas 365, which is intended to connect device selection, hardware/software co-design, development and lifecycle management rather than leaving engineers to move manually between disconnected tools.
For Renesas, the logic is fairly direct. Its MCU and MPU customers increasingly have to produce software-defined products for automotive, robotics and industrial equipment. In those markets, early validation is valuable because control behaviour, timing, memory use and device selection are closely linked. Pictorus adds another layer of abstraction above the IDE and board-design flow, while still supporting generated source and interaction with existing C/C++ codebases.
The Renesas 365 plan already leaned heavily on Altium. As previously reported by eeNews Europe when the Altium deal closed, Renesas paid US$5.9 billion for the PCB design and cloud-platform company in 2024 to build an electronics system design and lifecycle-management platform.
The Renesas Pictorus acquisition gives that strategy a more explicit embedded software dimension. Rather than limiting Renesas 365 to component discovery, board design and lifecycle data, the Pictorus technology should help users express what a system is meant to do, simulate it, and generate software earlier in the design process.
Renesas says Pictorus’ technology can generate memory-safe Rust code with C/C++ and Python interoperability. Pictorus also presents itself as a modern workflow for control software, covering design, deployment, monitoring, telemetry and over-the-air updates from a laptop. That is a useful fit for embedded Linux and connected control systems, although Renesas will still have to show how broadly the tools will support its MCU and MPU portfolio beyond the first Renesas 365 integrations.
The acquisition continues a visible shift in Renesas’ business from selling parts and reference designs towards wrapping those parts in software, cloud tools and lifecycle services. The company has already used acquisitions such as Altium to move upstream into design infrastructure. Pictorus extends that approach into model-based embedded application development.
Leigh Gawne, Renesas’ vice president of R&D and digital industries, software and digitalisation, said the technology would combine architectural modelling with behavioural modelling and simulation. Chris Sullivan, founder and CEO of Pictorus, said joining Renesas aligned with Pictorus’ aim to reduce the gaps between hardware, software, simulation and deployment.
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