Curtiss-Wright / DY-4 DMV-179-1263A1 Single-Board Computer -Conformal Coated

The Curtiss-Wright/DY-4 DMV-179-1263A1 is a conformal-coated single-board computer engineered for defense and aerospace applications requiring environmental durability. Built on PowerPC architecture with 64-bit processing, this VME-based SBC delivers integrated compute, storage, and I/O expansion in a single platform. Conformal coating protects against moisture, chemicals, and temperature extremes without compromising thermal performance or accessibility.

Technical Specifications Processor & Performance

PowerPC 750 or PowerPC 7400 CPU (AltiVec Technology-Enhanced)

Speeds up to 400 MHz

Peak computational rate: 3.2 GFLOPS at 400 MHz Cache Memory

L2 cache: 1 MB (750 CPU) or 2 MB (7400 CPU)

Synchronous burst RAM implementation

Parity error detection on L2 data bus

L2 cache bus peak data transfer: 1.06 GBytes/sec at 133 MHz Main Memory

Synchronous DRAM (SDRAM) options: 64, 128, or 256 Mbytes

Error Checking and Correcting (ECC) support

Peak data transfer rate with ECC: 528 Mbytes/sec

Accessible via processor, PCI bus, and VMEbus (Universe II™ PCI-to-VME interface) Storage

Up to 48 Mbytes of 64-bit wide, direct memory-mapped Flash memory

32 Kbytes AutoStore nvSRAM

512 bytes Serial EEPROM

Direct Flash execution capability for optimized boot performance Bus & Expansion

64-bit PCI local bus: 264 Mbytes/sec peak transfer rate

Tundra Universe II™ VME64 master/slave interface

Two PMC sites (IEEE P1386/1386.1, 64-bit, 33 MHz) I/O Interfaces

10/100BaseTX Ethernet (1 port)

Ultra SCSI-2: 8 or 16-bit (20 Mbytes/sec synchronous, 7 Mbytes/sec asynchronous)

Wide Ultra SCSI-3 available via factory configuration

Two EIA-232 serial ports

Two EIA-422/485 HDLC/SDLC-capable channels (one with DMA)

12 bits discrete TTL I/O with interrupt capability Timers & Clocking

One 32-bit general purpose timer

Three 24-bit general purpose timers

Three 16-bit system timers

Programmable watchdog timer

Real-Time Clock with automatic +5 V/+5 V STDBY switchover Power Consumption

17 Watts typical (750 CPU configuration)

Key Features

Conformal coating for harsh environment protection

On-basecard DRAM eliminates mezzanine module requirement

Integrated Fast-20 SCSI capability (20 megatransfers/sec)

Parallel PMC expansion for custom I/O adaptation

Typical Applications Rugged defense systems, airborne platforms, shipboard combat systems, field-deployed data acquisition, and aerospace avionics requiring sealed, conformal-coated processing in vibration-prone or high-humidity environments.

Compatibility & Integration VME64 backplane compatible. Universe II bridge enables seamless DRAM and Flash access from external VMEbus masters. Symbios 53C885 SCSI controller provides industry-standard device driver support.