SoM provides ARM Cortex-A7 performance in QFN-style package

SoM provides ARM Cortex-A7 performance in QFN-style package

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Direct Insight has introduced a QSMP Solder-down module featuring the STMicro ST32M1 single/dual core ARM Cortex-A7 processor. The module has been manufactured by the Direct Insight’s partner, Aachen-based Ka-Ro Electronics. [via]

The SOM has been built around an ST32M1 family processor that is powered by a single or dual 650MHz ARM Cortex-A7 core, which is supported by a separate ARM Cortex-M4 operting at 200MHz with up to 512MB of DDR3L RAM and up to 4GB eMMC Flash. The ST chip also offers a wide range of interfaces. The chip has been developed to provide low power operation, combined with security features and high-performance. To boost performance, the ST32M157C can offer a powerful 3D GPU and the integrated security features include secure boot and an AES/TDES/SHA crypto-engine.

The QSMP SoM measures 27mm square and is only 2.3mm high. It has been manufactured in a solder-down package that features a QFN-type pin-out that is based on a 1mm pitch with 100 edge-located pads. The SoM has been built this way to assist inspection and simplify routing. It even permits a two-layer baseboard and a base plane. The ground plane design helps the modules ‘float’ into position during reflow, unlike a BGA which requires X-Ray inspection to ensure full connectivity. The QS solder-down modules are small enough to prevent warping. The package’s design also improves thermal efficiency and EMI performance with the base functioning as both a ground pad and a thermal conductor. The modules can operate across the industrial temperature range of -40 or -25 to +85degC.

David Pashley, Direct Insight’s MD says,

“Solder-down SoMs offer simplicity and reduced cost but can be tricky to handle during production. Ka-Ro’s QS modules address these challenges, simplifying inspection and PCB layout, while delivering huge processing power – all in a miniature package”.

The module has a broad range of connectivity options including CANbus (ST32M153A and ST32M157C), UART (x3), SPI (x2), I2C (x2), Audio, Gb Ethernet, SD, USB Host and Client and a parallel or MIPI-DSI (ST32M157C) display. It operates on a single 3.3V supply.

The ST32M1 ARM Cortex-A7-powered QSMP SoM also has a dedicated development system, equipped with Linux BSP.

More information: www.directinsight.co.uk

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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