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80386DX Datasheet

32-Bit Microprocessor

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80386DX
32-Bit Microprocessor
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Logic Diagram
FEATURES:
• 32-Bit microprocessor
• RAD-PAK® radiation-hardened against natural space radia-
tion
• Total dose hardness:
- >100 Krad (Si), dependent upon space mission
• Single event effect:
- SELTH = 37-60 MeV/mg/cm2
- SEUTH = 3.4 MeV/mg/cm2
- SEU Cross section 1E-3 cm2/bit
• Package:
- 164 Pin RAD-PAK® quad flat pack
• 8, 16, 32-Bit data types
• 8 general purpose 32-Bit registers
• Hardware debugging support
• Very large address space:
- 4 gigabyte physical
- 64 terabyte Virtual
- 4 gigabyte maximum segment size
• Integrated memory management unit
- Virtual memory support
- Four levels of protection
- Fully compatible with 80C286
• Optimized for system development
- Pipelined instructions
- On-chip caches support address translation
- 32 megabytes/sec bus bandwidth
DESCRIPTION:
Maxwell Technologies’ 80386DX high performance 32-bit
microprocessor features a geater than 100 krad (Si) total dose
tolerance, dependent upon space mission. It is designed for
very high performance and multitasking operating systems.
The integrated memory management and protection architec-
ture includes address translation registers, multitasking hard-
ware and a protection mechanism to support operating
systems. The 80386DX allows simultaneous running of multi-
ple operations. In addition, the 80386DX is capable of execu-
tion at sustained rates of between 3 and 4 million instructions
per second. It offers new testability and debugging features,
including a self-test and direct access to the page translation
cache.
Maxwell Technologies' patented RAD-PAK® 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, RAD-PAK provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
1000557
12.17.01 Rev1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice 1
©2001 Maxwell Technologies
All rights reserved.
Maxwell Technologies
Maxwell Technologies



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