The DDC SCS3740 is a high-speed, SWaP-optimized 3U SpaceVPX single board computer delivering mission-critical performance in a compact, power-efficient package. Built around the rad-hard GR740 LEON 4FT quad-core processor, it achieves 1700 DMIPS and 90 Linpack MFLOPS while consuming just 5 W typical power. The SCS3740 integrates 128 MB EDAC-corrected SDRAM, 32 GB BCH-corrected NAND Flash, and 4 MB EDAC-corrected EEPROM, eliminating component count and enabling the first off-the-shelf quad-core LEON 4FT 3U SpaceVPX offering.
## Technical Specifications
• **Processor:** GR740 rad-hard quad-core LEON 4FT, 1700 DMIPS, 90 Linpack MFLOPS
• **Memory:** 128 MB EDAC SDRAM, 32 GB BCH NAND Flash, 4 MB EDAC EEPROM
• **SpaceWire Router:** Integrated with 8 general purpose ports (up to 200 Mbps each) plus 1 debug port
• **Serial & Field Buses:** 2 UART (RS-422/LVDS configurable), 2 CANbus, 2 I²C, 1 SPI, 1 MIL-STD-1553
• **Ethernet:** 1 port (flight and non-flight options)
• **GPIO:** General purpose input/output pins
• **Power:** 5 W typical, 12 W maximum; 3.3 V input only
• **Radiation Hardness:** TID > 100 krad(Si); SEE rate 1 upset in 150 years (GEO)
• **Temperature Range:** –30°C to +70°C (acceptance), –40°C to +80°C (qualification)
• **Form Factor:** 3U SpaceVPX, ≤550 g
## Key Features
• Space-proven design: zero failures across 20+ years of DDC rad-hard flight heritage
• TRL-9 qualified single board computer architecture
• Flight-proven Sp-COTS™ memory products
• Minimal part count for enhanced reliability and reduced thermal load
## Typical Applications
On-board data processing, avionics, payload control, communication gateways, and radiation-hardened computing in GEO and LEO missions.
## Compatibility & Integration
Supported by Wind River VxWorks 7.0, RTEMS, and Linux (factory contact). Development kit and board support package included for rapid integration.
