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Mb386sx rc2016

skiselev·mb386sx-rc2016·KiCad/AT386SX.kicad_pcb

Mb386sx rc2016 PCB layout, top view — open source board by skiselev
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About the Mb386sx rc2016 PCB

Mb386sx rc2016 is an open source PCB design by skiselev, published on GitHub. It is a 2-layer board measuring 172.7 × 218.4 mm, with 141 components from 60 distinct parts.

Other key parts include the 80386SX, 80387SX, RC2016A5, DS12885 and 8242KBD. By type, the board carries 48 capacitors, 45 resistors, 17 connectors, 10 ICs, 6 jumpers and 4 crystals.

It belongs with the power & battery designs in this gallery.

From the project

SARC 2016 Chipset Based 386SX/486SLC Motherboard

The origin of this project is the M396F motherboard replica by Marco Both. Marco replicated the PCB layout of a certain revision of M396F motherboard. He didn't provide the schematic.

I reverse engineered the schematic based on his PCB layout and made a PCB layout using that schematic similar to the Marco's replica. This was the initial version of this project - version 1.0.

Mb386sx rc2016, from the project README
From the project README

Main components on the Mb386sx rc2016

80386SX80387SXRC2016A5DS128858242KBDSST39SF010A74HC0574HCT1474HCT74LM7905

Mb386sx rc2016 bill of materials (BOM)

141 components, 60 distinct parts.

QtyPartRefs
1
80386SX
U1
1
80387SX
U2
1
RC2016A5
U3
1
DS12885
U4
1
8242KBD
U5
1
SST39SF010A
U6
1
74HC05
U7
1
74HCT14
U8
1
74HCT74
U9
1
LM7905
U10
1
2N3904
Q1
1
CPU_CLK
X1
1
FPU_CLK
X2
1
14.31818MHz
Y1
1
32768Hz
Y2
2
BANK0
J1, J2
2
BANK1
J3, J4
6
BUSAT_HOST
J5, J6, J7, J8, J9, J10
1
PS/2 Dual Port
J11
1
Power
J12
Show 40 more
QtyPartRefs
1
Front Panel
J13
1
CPU 1-25
J14
1
CPU 26-50
J15
1
CPU 51-75
J16
1
CPU 76-100
J17
1
CR2032
BT1
1
1.1A
F1
1
CLEAR CMOS
JP1
1
DISP SEL
JP2
1
KEY LOCK
JP3
1
40MHz/<=33MHz
JP4
1
FPU Clock Select
JP5
1
IRQ12: Mouse/ISA
JP6
1
Power
SW1
1
Reset
SW2
1
Power
D1
1
Activity
D2
4
Ferrite
L1, L2, L3, L4
3
30pF
C1, C2, C3
4
47pF
C4, C5, C6, C7
1
100pF
C8
1
220pF
C9
12
100nF
C10, C11, C12, C13, C14, C15, C16, C17 +4
2
1uF
C22, C23
25
10uF
C24, C25, C26, C27, C28, C29, C30, C31 +17
12
10
R1, R2, R3, R4, R5, R6, R7, R8 +4
3
22
R13, R14, R15
2
56
R16, R17
4
100
R18, R19, R20, R21
1
330
R22
7
470
R23, R24, R25, R26, R27, R28, R29
2
1k
R30, R31
1
4.7k
R32
6
10k
R33, R34, R35, R36, R37, R38
1
22k
R39
1
1M
R40
1
330
RN1
2
4.7k
RN2, RN3
1
4.7k
RN4
1
10k
RN5

Mb386sx rc2016 design files

The KiCad project lives in the skiselev/mb386sx-rc2016 repository on GitHub; these links point at the commit this page was built from.

Mb386sx rc2016: common questions

How big is the Mb386sx rc2016 PCB?

The Mb386sx rc2016 measures 172.7 × 218.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mb386sx rc2016?

141 components, from 60 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mb386sx rc2016 design files?

From the skiselev/mb386sx-rc2016 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mb386sx rc2016 design in my own project?

The repository has no license, so all rights stay with skiselev. Use it as a reference, and ask the author before reusing the design.

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