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All data sheets are subject to change without notice
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
32-Bit Microprocessor
80386DX
2001 Maxwell Technologies
All rights reserved.
12.17.01 Rev1
1000557
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.
Logic Diagram
22
144
145
21
62
63
103
104
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All data sheets are subject to change without notice
2001 Maxwell Technologies
All rights reserved.
32-Bit Microprocessor
80386DX
12.17.01 Rev1
1000557
T
ABLE
1. 80386DX P
IN
D
ESCRIPTION
P
IN
S
YMBOL
D
ESCRIPTION
1-7, 9, 10, 12, 13, 16, 17, 20,
21, 24, 146-149, 152-154, 156-
159, 161-163
A16-A11, A9, A10, A7, A8, A5, A6,
A3, A4, A2, A31-A28, A27-A25,
A23-A22, A20-A18
Address Bus
8, 18, 19, 22, 23, 25, 28-30, 33,
36, 38-40, 47, 48, 65, 66, 68,
73, 76, 77, 82, 84, 86, 88, 103,
106, 107, 114, 125, 126, 129,
130,133, 134, 145, 155, 160,
164
NC
Not Connected
11, 15, 27, 32, 35, 43, 51, 53,
55, 57, 61, 70, 92, 95, 100, 111,
118, 122, 138, 142, 151
V
SS
Ground
14, 26, 31, 34, 44, 50, 52, 54,
56, 58, 62, 69, 91, 96, 99, 110,
117, 137, 141, 150,
V
CC
Power Supply
37
INTR
Interupt Request
41
NMI
Non-Maskable Interupt Request
42
PEREQ
Processor Extension Request
45
ERROR
Error Status
46
RESET
Reset
49
BUSY
Busy Status
59
LOCK
Bus Lock
60
W/R
Write/ Read
63
M/IO
Memory I/O
64
D/C
Data Control
67, 71, 72, 74
BE2, BE0, BE3, BE1
Byte Enables
78
BS16
Bus Size 16
75
NA
Next Address
79
HOLD
Bus Hold Request
80
CLK2
CPU Clock 2
81
ADS
Address Staus
83
READY
Bus Ready Input
85, 87, 89, 90, 93, 94, 97, 98,
102, 104, 105, 108, 109, 112,
113, 115, 116, 119, 120, 121,
123, 124, 127, 128, 131, 132,
135, 136, 139, 140, 143, 144,
D1, D2, D4, D0, D6, D3, D8, D5, D7,
D10, D9, D12, D11, D14, D13, D15,
D16, D18, D17, D20, D22, D19,
D24, D21, D25,D23, D27, D26, D29,
D28, D31, D30,
Data Bus
101
HLDA
Bus Hold Acknowledge
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All data sheets are subject to change without notice
2001 Maxwell Technologies
All rights reserved.
32-Bit Microprocessor
80386DX
12.17.01 Rev1
1000557
T
ABLE
2. 80386DX A
BSOLUTE
M
AXIMUM
R
ATINGS
P
ARAMETER
S
YMBOL
M
IN
M
AX
U
NIT
Supply Voltage with Respect to Ground
V
SS
-0.5
6.5
V
Voltage on other pins
-0.5
V
CC
+0.5
V
Thermal Impedance
JC
--
1.79
C/W
Operating Temperature Range (Ambient)
T
A
-55
125
C
Storage Temperature Range (Ambient)
T
S
-65
150
C
T
ABLE
3. D
ELTA
L
I
MITS
P
ARAMETER
V
ARIATION
I
CC
10% of specified value in Table 4
I
LI
10% of specified value in Table 4
I
LO
10% of specified value in Table 4
T
ABLE
4. 80386DX R
ECOMMENDED
O
PERATING
C
ONDITIONS
P
ARAMETER
S
YMBOL
M
IN
M
AX
U
NIT
Digital Supply Voltage
V
CC
4.75
5.25
V
Input Low Voltage
V
IL
--
0.8
V
Input High Voltage
V
IH
2.0
--
V
CLK2 Input Low Voltage
V
ILC
--
0.8
V
CLK2 Input High Voltage
V
IHC
V
CC
- 0.8
--
V
Operating Temperature Range
T
A
-55
+125
C
T
ABLE
5. 80386DX DC E
LECTRICAL
C
HARACTERISTICS
(V
CC
= +5V 5%; T
A
= -55C
TO
+125C,
UNLESS
OTHERWISE
SPECIFIED
)
P
ARAMETER
S
YMBOL
C
ONDITION
M
IN
M
AX
U
NIT
Input Leakage Current
I
LI
All pins except BS16, PEREQ, BUSY, and ERROR
0V < V
IN
< V
CC
-15
+15
A
Output Leakage Current
I
LO
0.45V < V
OUT
< V
CC
-15
+15
A
Output Low Voltage
V
OL
I
OL
= 4 mA: A2 - A31, D0 - D31
--
0.45
V
I
OL
= 5 mA: BE0 - BE3, W/R, D/C, M/IO, LOCK, ADS, HLDA
--
0.45
Output High Voltage
V
OH
I
OH
= 1 mA: A2 - A31, D0 - D31
2.4
--
V
I
OH
= 0.9 mA: BE0 - BE3, W/R, D/C, M/IO, LOCK, ADS,
HLDA
2.4
--
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