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Tough, expandable Bay Trail SBC measures just 95 x 55mm

Aug 10, 2016 — by Eric Brown 916 views

VersaLogic’s sandwich-style “Osprey” SBC offers Atom E3800 SoCs, dual GbE ports, dual mini-PCIe slots, MIL-STD-202G ruggedization, and -40 to 85°C support.

Like VersaLogic’s recent BayCat and earlier Bengal single-board computers, the Osprey is based on Intel’s “Bay Trail” Atom E38xx family of SoCs. Unlike those boards, which conform to 4.2 x 3.8-inch (107 x 97mm) PC/104 family specs, the Osprey has a considerably smaller, 95 x 55mm footprint and omits stackable PC/104-style expansion.

Instead, the Osprey is one of VersaLogic’s “Embedded Processing Unit” (EPU) products, which are sandwich-style SBCs built from a COM Express Mini computer-on-module, an I/O-oriented carrier board, and a heat spreader plate for efficient thermal transfer. Consequently, like VersaLogic’s other EPUs, the Osprey has a fairly thick, 27.5mm profile.

VersaLogic Osprey EPU
(click images to enlarge)

Previous VersaLogic EPUs include the soon-to-be-retired, Intel Atom “Tunnel Creek” based Falcon, and the newer, Atom E38xx based Hawk. Both of these are slightly smaller than the Osprey, at 84 x 55mm.

Osprey (left) compared to VersaLogic’s earlier Hawk EPU
(click images to enlarge)

The Osprey has much in common with the similarly Linux-ready Hawk except that it has a second GbE port and adds dual mini-DisplayPorts with dual display support along with the previous LVDS interface. The Osprey also adds a half-size mini-PCIe slot to join the existing full-size slot, and adds a USB 3.0 port to join the previous four USB 2.0 ports. DIO and I2C support are included as well.

Osprey detail view
(click image to enlarge)

VersaLogic’s Osprey product page and datasheet do not currently state what COM is sandwiched between the Osprey EPU’s I/O expansion card and its heat spreader plate. However, a comparison of the Hawk’s core specs to those of the Osprey suggested — and VersaLogic subsequently confirmed in an email to — that both EPUs use the same core: the COM Express Mini form-factor VersaLogic COMm-33.

VersaLogic E38xx-based COMm-33, front and back views
(click images to enlarge)

The Osprey is designed for military, avionic, and medical devices that need resistance to extreme temperature, impact, and vibration, says VersaLogic. Like the BayCat, Bengal, and Hawk, the Osprey supports -40 to 85°C temperatures, and offers shock and vibration resistance per MIL-STD-202G. It also features a wide-range 8-17V power input that supports automotive applications.

Osprey mini-PCIe module options
(click image to enlarge)

Like the Hawk, the Osprey is offered in single- (E3815), dual- (E3827), and quad-core (E3845) Atom SoC SKUs. The single- and dual-core SKUs offer 4GB RAM with either no eMMC (E3815) or 4GB. The E3845 SKU gives you 4GB RAM and 8GB eMMC.


Specifications listed by VersaLogic for the Osprey SBC include:

  • Processor — Intel Atom E3800 SoC (“Bay Trail”) with Intel Gen-7 graphics; choice of:
    • E3845 — 4x CPU cores @ 1.91GHz
    • E3827 — 2x CPU cores @ 1.75GHz
    • E3815 — 1x CPU core @ 1.46GHz
  • RAM — 2GB or 4GB (E3845 only) of soldered DDR3L 1333 MT/s.
  • Storage:
    • eMMC — 8GB with E3845; 4GB with E3827; N/A with E3815
    • MicroSD slot with optional 2GB, 4GB, or 8GB industrial-temp SSD cards
    • SATA 2.0 port with latching connector and optional 320GB, 7200RPM, 3.5-in. HDD
    • mSATA via mini-PCIe with optional 4GB, 16GB, or 32GB industrial-temp SSDs
  • Display:
    • Single-channel 18/24-bit LVDS up to 1024 x 768 @ 60Hz
    • Dual mini-DisplayPorts with HDMI and audio support at up to 2560 x 1600
  • Networking — 2x Gigabit Ethernet ports with latching connector, network boot option
  • Other I/O:
    • USB 3.0
    • 4x USB 2.0
    • Optional USB-to-audio adapter
    • 2x RS-232/422/485
    • 8x DIO
    • I2C
    • 3x timers/counters
  • Expansion:
    • Full-sized mini-PCIe socket with support for mSATA, wireless, etc.
    • Half-sized mini-PCIe socket with support for PCIe and USB
    • Optional mini-PCIe modules: WiFi, GbE, FireWire, serial/GPIO, analog input, GPS, VGA/LVDS, mSATA, SATA
  • Other features – Watchdog; system reset; HW monitoring; optional passive heatsink, cooling fan, and heat pipe connector plate; optional cables and more; 5-year warranty and 5+ year availability guarantee
  • Operating temperature — -40 to 85°C
  • Shock & vibration resistant per MIL-STD-202G
  • Power:
    • 8V to 17V (nominal 12V operation)
    • Typical/max. consumption (4, 2, 1 cores): 7.3W/8.5W, 6.8W/7.7W, 5.9W/6.5W
    • ACPI 3.0 and support for S3 suspend state
    • Connection for 3.0V RTC battery
    • Power filtering to protect against glitches from dirty or unstable power sources
  • Dimensions — 95 x 55 x 27.5mm (3.743 x 2.17 x 1.08 in.)
  • Weight — 140 g (4.93 oz.)
  • Operating system — Linux, VxWorks, Windows, Windows Embedded

Further information

The Osprey (VL-EPU-3311) is now in stock at both VersaLogic and Digi-Key Corp. OEM quantity pricing starts at $709 for the single-core model, ranging up to $1,237 for the quad-core model. Customization services are available in even for small quantities. More information may be found at VersaLogic’s Osprey product page.


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