80387DX Math Coprocessor				80387DX Information - Product Datasheet - Product Flow - Back to Peripherals

Features

• 80-Bit numeric processor
• RAD-PAK® radiation hardened against natural space radiation
• Total dose hardness:
  • > 100 krad (Si) dependant upon space mission
• Single Event Effects:
  • SEU Threshold is ~ 3.38 MeV/mg/cm2
  • SEL Threshold = 37.1 - 59.9 MeV/mg/cm2
• Package:
  • 68-pin RAD-PAK® quad flat pack
• Eight 80-bit numeric registers, usable as individual addressable general registers or as a register stack
• Data types include:
  • 32-, 64-, 80-bit floating point
  • 32-, 64-bit integers
  • 18-digit BCD operands
• 5 V Only power
• Built-in exception handling
• Upward object code compatible with All 80X87DX microprocessors
• Full-range transcendental operations for SINE, COSINE, TANGENT, ARCTANGENT and LOGARITHM

Description

Maxwell's 80387DX high speed microcircuit features a greater than 100 kilorad (Si) total dose tolerance. Using Maxwell's radiation hardened RAD-PAK® packaging technology, the 80387DX is a high-performance numerics processor that extends the 80386DX architecture with floating point, extended integer and BCD data types.

The computing system fully conforms to the ANSI/IEEE floating-point standard. Using a numerics oriented architecture, the 80387DX adds over seventy mnemonics to the 80386DX instruction set, making the 80386DX/80387DX a complete solution for high-performance numerics processing.

Maxwell Technologies' patented RAD-PAK packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S.