SoM packs ST32M1 ARM Cortex-A7 in QFN-style package

June 25, 2020 //By Julien Happich
ARM Cortex-A7
The tiny QSMP solder-down module from Direct Insight integrates the STMicro ST32M1 single/dual core ARM Cortex-A7 into a QFN-style package measuring only 27mm square and just 2.3mm high.

Manufactured by the company’s long-standing partner, Aachen-based Ka-Ro Electronics, the module’s ST32M1 family processor provides a single or dual 650MHz ARM Cortex-A7 core as well as a separate ARM Cortex-M4 running at 200MHz. Also featured is up to 512MB of DDR3L RAM, up to 4GB eMMC Flash, and a range of interfaces. As well as very low-power operation, the ST32M157C can offer a powerful 3D GPU, secure boot and an AES/TDES/SHA crypto-engine.

The new QSMP SoM features a solder-down package with a QFN-type pin-out based on a 1mm pitch with 100 edge-located pads. This design aids inspection and simplifies routing, even permitting a two-layer baseboard and a base plane. An innovative ground plane design ensures that the modules effectively ‘float’ into position during reflow, unlike a BGA which require X-Ray inspection to ensure full connectivity. Also, these QS solder-down modules are so small that warping does not occur. The design of the package also improves thermal efficiency and EMI performance as the base functions as both a ground pad and a thermal conductor. Modules operate across an industrial temperature range of -40 or -25 to +85ºC.

Direct Insight -

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