UT700 32-bit Fault-Tolerant SPARC V8 LEON Processor

8-10 wks lead time; add 8 wks for Ceramic Ball Grid Array; add 24 weeks for Ceramic Column Grid Array

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Test Temp Range: -55C to 105C

The UT700 features a seven stage pipelined monolithic, high performance, fault-tolerant SPARCTM V8/LEON 3FT Processor. L1 cache consists of 16kB for both instruction and data caches. A Reed Solomon EDAC provides fault-tolerant protection for SDRAM. Integer performance is 1.2 DMIPS/MHz. RMAP protocol is supported for all four SpaceWire ports. The UT700 provides a 32-bit master/target PCI interface, including a 16 bit user I/O interface for off-chip peripherals. A compliant 2.0 AMBA bus interface integrates the on-chip LEON 3FT, SpaceWire, Ethernet, memory controller, cPCI, CAN bus, MIL-STD-1553, SPI and programmable interrupt peripherals.

The UT700 is SPARC V8 compliant; therefore, developers may use industry standard compilers, kernels, and development tools. A full software development suite is available including a C/C++ cross-compiler system based on GCC and the Newlib embedded C-library.

BCC includes a small run-time kernel with interrupt support and Pthreads library. For multi-threaded applications, a SPARCTM compliant port of the eCos real-time kernel, RTEMS 4.10, and VxWorks 6.x is supported.



  • Instruments Management Module
  • Command Module
  • Control System Module
  • Communication Module
  • Data Acquisition Control Module
  • Single Board Space Computer
  • Flight Control Module
  • Space Environment Control Module


  • Supports up to 166 MHz clock rate
  • Separate instruction and data cache architecture
  • High-performance fully pipelined IEEE-754 FPU
  • Enhanced pipeline with 1.2 DMIPS / MHz performance
  • Implemented on 130nm CMOS technology
  • Internally configured clock network
  • Power saving 1.2V core power supply
  • 3.3V I/O compatibility
  • Hardened-by-design flip-flops and memory cells
  • Reed Solomon EDAC
  • Multifunctional memory controller
  • 10/100 Base-T Ethernet port for VxWorks development
  • Integrated PCI 2.2 compatible core
  • Four integrated multi-protocol SpaceWire nodes that
  • support the RMAP protocol
  • SPI interface
  • Two CAN 2.0 compliant bus interfaces
  • MIL-STD-1553 BC/RT/MT
  • -55oC to +105°C temperature range
  • Operational environment:
    • Intrinsic total-dose: 100 krad (Si)
    • SEL Immune≤110 MeV-cm2/mg
  • Packaging options:
    • 484-pin Ceramic Land Grid, Column Grid and Ball
    • Grid Array packages
  • Standard Microcircuit Drawing 5962-13238:
    • QML Q and V

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