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80387DXRPQI

Description
math coprocessor
File Size341KB,17 Pages
ManufacturerMaxell
Websitehttp://www.maxell.com
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80387DXRPQI Overview

math coprocessor

80387DX
Math Coprocessor
80387
Memory
Logic Diagram
F
EATURES
:
• 80-Bit numeric processor
• R
AD
-P
AK
® radiation hardened against natural space radia-
tion
• Total dose hardness:
- > 100 krad (Si)
- dependant upon space mission
• Single Event Effects:
- SEU Threshold is ~ 3.38 MeV/mg/cm
2
- SEL Threshold = 37.1 - 59.9 MeV/mg/cm
2
• Package: 68-pin R
AD
-P
A
® 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 micro-
processors
• Full-range transcendental operations for SINE, COSINE,
TANGENT, ARCTANGENT and LOGARITHM
D
ESCRIPTION
:
Maxwell's 80387DX high speed microcircuit features a greater
than 100 kilorad (Si) total dose tolerance. Using Maxwell's
radiation hardened R
AD
-P
AK
® 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, mak-
ing the 80386DX/80387DX a complete solution for high-per-
formance numerics processing.
Maxwell Technologies' patented R
AD
-P
AK
packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
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, R
AD
-P
AK
provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
05.07.02 REV 1
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
©2002 Maxwell Technologies
All rights reserved.

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