80386DX
32-Bit Microprocessor
21
145
22
144
62
104
63
103
Logic Diagram
Memory
F
EATURES
:
• 32-Bit microprocessor
• R
AD
-P
AK®
radiation-hardened against natural space radia-
tion
• Total dose hardness:
- >100 Krad (Si), dependent upon space mission
• Single event effect:
- SEL
TH
= 37-60 MeV/mg/cm
2
- SEU
TH
= 3.4 MeV/mg/cm
2
- SEU Cross section 1E-3 cm
2
/bit
• Package:
- 164 Pin R
AD
-P
AK®
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
D
ESCRIPTION
:
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 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.
1000557
12.17.01 Rev1
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
©2001 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
