system on module from direct insight packs stmicro st32m1 arm cortex a7 performance in tiny qfn style package hyperedge embed image

Direct Insight, the U.K.-based, technical systems integrator and reseller of systems-on-module (SoM) and other embedded systems, has announced the tiny QSMP solder-down module with STMicro ST32M1 single-/dual-core Arm Cortex-A7, manufactured by the company’s long-standing partner, Aachen-based Ka-Ro Electronics. The module’s ST32M1 family processor provides a single or dual 650-MHz Arm Cortex-A7 core, as well as a separate Arm Cortex-M4 running at 200 MHz. Also featured is up to 512 MB of DDR3L RAM, up to 4-GB 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 measures 27 × 27 × 2.3 mm. It features a solder-down package with a QFN-type pin-out based on a 1-mm 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 requires 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°C or –25°C to 85°C.

“Solder-down SoMs offer simplicity and reduced cost but can be tricky to handle during production,” said David Pashley, Direct Insight’s MD. “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 features a wide range of connectivity options including CANbus (ST32M153A and ST32M157C), UART (×3), SPI (×2), I2C (×2), Audio, Gb Ethernet, SD, USB Host and Client, and a parallel or MIPI-DSI (ST32M157C) display. It requires a single 3.3-V supply.

The ST32M1 Arm Cortex-A7–powered QSMP solder-down SoM comes with a dedicated development system, equipped with Linux BSP.

Source: Electronics and Electrical Engineering News