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80387DX Datasheet

Math Coprocessor

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80387DX
Math Coprocessor
80387
Logic Diagram
FEATURES:
DESCRIPTION:
• 80-Bit numeric processor
Maxwell's 80387DX high speed microcircuit features a greater
• RAD-PAK® radiation hardened against natural space radia- than 100 kilorad (Si) total dose tolerance. Using Maxwell's
tion radiation hardened RAD-PAK® packaging technology, the
• Total dose hardness:
80387DX is a high-performance numerics processor that
- > 100 krad (Si)
extends the 80386DX architecture with floating point,
- dependant upon space mission
extended integer and BCD data types. The computing system
• Single Event Effects:
fully conforms to the ANSI/IEEE floating-point standard.
- SEU Threshold is ~ 3.38 MeV/mg/cm2
Using a numerics oriented architecture, the 80387DX adds
- SEL Threshold = 37.1 - 59.9 MeV/mg/cm2
over seventy mnemonics to the 80386DX instruction set, mak-
• Package: 68-pin RAD-PA® quad flat pack
ing the 80386DX/80387DX a complete solution for high-per-
• Eight 80-bit numeric registers, usable as individual addres- formance numerics processing.
sable general registers or as a register stack
• Data types include:
Maxwell Technologies' patented RAD-PAK packaging technol-
- 32-, 64-, 80-bit floating point
ogy incorporates radiation shielding in the microcircuit pack-
- 32-, 64-bit integers
m- 18-digit BCD operands
o• 5 V Only power
.c• Built-in exception handling
u• Upward object code compatible with All 80X87DX micro-
t4processors
e• Full-range transcendental operations for SINE, COSINE,
eTANGENT, ARCTANGENT and LOGARITHM
age. 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.
tash 05.07.02 REV 1
www.da(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice 1
©2002 Maxwell Technologies
All rights reserved.
Maxwell Technologies
Maxwell Technologies



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