Electromobility Microchip Launches Automotive-Qualified SiP Hybrid MCU for HMI

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FAULHABER Drive Systems

Human-machine interfaces with sophisticated graphics are increasingly being integrated into the vehicle to improve the user experience. To meet the growing demand, Microchip has developed the SAM9X75D5M system-in-package device with an Arm926EJ-S processor and 512 MBit DDR2 SDRAM, which supports display sizes up to 10 inches and XGA resolution of 1024 × 768 pixels.

The SAM9X75D5M is part of Microchip's hybrid MCU series. It enables microprocessor/MCU processing with access to higher embedded memory densities and the familiar development environment of MCU-based designs. There is also the option of developing with real-time operating systems (RTOS). The hybrid MCU-SiP SAM9X75D5M has been specially developed for vehicle applications such as digital cockpit clusters, intelligent clusters for two- and three-wheelers, air conditioning control or chargers for electric vehicles. It simplifies the development process by combining MPU and memory in one housing. The device offers ample buffer memory for vehicle displays and flexible display interface options, including MIPI Display Serial Interface (DSI), Low Voltage Differential Signaling (LVDS) and parallel RGB data.

Less Complex Wiring

With a simplified PCB layout, the SAM9X75D5M reduces wiring complexity and minimizes sourcing risk for discrete DRAM. It is designed for long-term availability and reliability. As a hybrid MCU, its architecture is claimed to offer an optimal balance of cost, performance and energy efficiency. This provides a migration path for applications moving from traditional MCUs to MPUs to meet higher performance and memory requirements.

By directly integrating DDR2 memory, the SAM9X75D5M protects against fluctuations and supply shortages that have affected the discrete DDR memory market in the past. The single-chip solution offers more predictable availability than discrete DDR memory and eliminates the sourcing issues associated with separate memory components.

The SAM9X75D5M has various data connections, including CAN FD, USB and Gigabit Ethernet (GbE). It also supports the TSN protocol and has integrated 2D graphics and audio functions.

Reliable Touch Detection

In addition to these components, Microchip also offers solutions for HMI systems, including maXTouch. This guarantees reliable touch recognition even in harsh environments or when water is on the LCD screen. Further components for power management and data connection round off the range.

Microchip offers 32-bit hybrid MCUs and MPUs as well as 64-bit MPUs based on Arm and RISC-V architectures. This provides options for applications ranging from consumer to aerospace electronics. The MPU offering includes single and multi-core options, SOM and SiP solutions that reduce design complexity, accelerate time-to-market and simplify the supply chain.

Development Tools

The SAM9X75D5M is supported by our integrated development environment (IDE) MPLAB X and the software framework MPLAB Harmony. This enables development for various real-time operating systems (RTOS) such as FreeRTOS and Eclipse ThreadX as well as bare-metal software. The Microchip Graphics Suite (MGS) or other third-party graphics software tools such as Crank, LVGL, Altia and Embedded Wizard can be used to develop appealing graphics. The SAM9X75 Curiosity LAN Kit also facilitates the evaluation of the SAM9X75 SiPs.

Price And Availability

The SiP SAM9X75D5M is now available for 9.12 US dollars with a minimum order quantity of 5,000 units. Variants with larger 1- and 2-GBit memory are now available as samples for automotive applications. (se)

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