The Curtiss-Wright/DY-4 SVME-183-1712 is a single-board computer engineered for mission-critical deployment in tactical aircraft, armored vehicles, and naval systems operating in harsh environments. Built on dual Motorola MPC7447A/7448 PowerPC processors with AltiVec SIMD capability, it delivers high-performance computing for complex signal processing and data-intensive workloads while maintaining compact form factor and exceptional thermal management.
## Technical Specifications
**Processing & Memory**
• Dual Motorola MPC7447A/7448 PowerPC processors with AltiVec technology
• Clock speeds up to 1.4 GHz (single processor); dual MPC7448 at 1.2 GHz
• Up to 2 GB DDR SDRAM with ECC; 1 GB and 512 MB configurations available
• Hardware-enforced cache coherency for PCI and bus mastering peripherals
• 128 MB to 512 MB contiguous direct-mapped Flash; 256 MB standard
**Interfaces & Connectivity**
• Three Gigabit Ethernet ports (ENETP0, ENETP2)
• Six serial ports: 2× RS-232, 3× RS-232, 2× RS-232/433/485
• Up to two MIL-STD-1553 channels
• Optional 8-bit or 16-bit SCSI interface
• Two USB 2.0 ports
• Tundra Universe II VME64 master/slave with VME DMA and VME64x geographic addressing
• Optional dual SATA 1.0 interfaces
**Expansion**
• Two 64-bit PMC sites: PCI Bus 1 (100 MHz PCI-X, 800 MB/s peak) and PCI Bus 2 (66 MHz PCI-X)
**Timers, Sensors & Clocking**
• 4× 32-bit general-purpose user timers
• 6× 32-bit OS timers (3 per processor)
• 2× avionics-style watchdog timers
• 4× general-purpose PCI/SDRAM DMA controllers
• On-board Real-Time Clock
• 4× on-board temperature sensors
**Environmental & Physical**
• Single 0.8″ slot occupancy
• Operating range: −40 to +71 °C
• Air-cooled (SVME) ruggedization levels 0 and 100; conduction-cooled (DMV) levels 100 and 200
• Optimized conduction cooling design
## Key Features
• Dual PowerPC architecture with vector processing for DSP applications
• ECC memory protection and cache coherency enforcement
• Multi-protocol serial connectivity supporting MIL-STD-1553
• High-speed Ethernet and optional SATA storage
• Avionics-grade watchdog timing
## Typical Applications
Defense systems requiring fault-tolerant processing in extreme thermal and shock environments; airborne command and control; naval combat systems; land vehicle fire control and mission computers.
## Compatibility & Integration
VME64/VME64x architecture with DMA master capability; PMC mezzanine card expansion via two independent PCI buses; software stack compatible with VxWorks and Linux real-time kernels.
