Math Coprocessor
DESCRIPTION:
"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-per formance numerics processing.
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-PA® quad flat pack
• Eight 80-bit numeric registers, usable as individual addres sable 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