HardLabs

8088-MicroATX-Computer

CPTforever·8088-MicroATX-Computer·kicad/retroslop.kicad_pcb

8088-MicroATX-Computer PCB layout, top view — open source board by CPTforever

About the 8088-MicroATX-Computer PCB

8088-MicroATX-Computer is an open source PCB design by CPTforever, published on GitHub. It is a 6-layer board measuring 244 × 244 mm, with 184 components from 62 distinct parts.

Other key parts include the DS12C887+, 74LS00, 74LS02, 74LS30 and 74LS138. By type, the board carries 84 capacitors, 51 ICs, 31 resistors, 10 connectors, 2 switches and 1 crystal.

It belongs with the retro computing designs in this gallery.

From the project

A 8088 based, IBM 5150 like computer compatible with the MicroATX motherboard form factor.

PIT Gate 1 does not have a pull up resistor, meaning gate is floating when the external io pin is not connected. (This can be bodged with a radial resistor at least.)

8088-MicroATX-Computer, from the project README
From the project README

Main components on the 8088-MicroATX-Computer

DS12C887+74LS0074LS0274LS3074LS138AS6C4008-55PCN74LS24574LS74VT82C4282848088_Max_Mode80878259A74LS3274LS37374LS04828874LS10LM386SST39SF01074LS2074LS67074LS24474LS175

8088-MicroATX-Computer bill of materials (BOM)

184 components, 62 distinct parts.

QtyPartRefs
1
DS12C887+
IC1
2
74LS00
U1, U4
1
74LS02
U2
2
74LS30
U3, U8
2
74LS138
U5, U6
2
AS6C4008-55PCN
U7, U12
5
74LS245
U9, U21, U27, U28, U47
1
74LS74
U10
1
VT82C42
U11
1
8284
U13
1
8088_Max_Mode
U14
1
8087
U15
1
8259A
U16
1
74LS32
U17
5
74LS373
U18, U19, U20, U35, U50
2
74LS04
U22, U37
1
8288
U23
1
74LS10
U24
1
LM386
U25
1
SST39SF010
U26
Show 42 more
QtyPartRefs
1
74LS20
U29
1
74LS670
U30
4
74LS244
U31, U48, U55, U56
2
74LS175
U32, U41
1
8254
U33
1
82C37A
U34
3
USBLC6-2SC6
U36, U38, U44
1
8255A
U40
1
16550
U42
1
MAX232
U43
1
74LS06
U46
1
74LS273
U54
1
14.318 MHz
Y2
4
Bus_ISA_8bit
J1, J2, J3, J4
1
DE9_Socket
J5
1
Conn_02x14_Odd_Even
J7
1
ATX-24
J8
1
KMDGX-6SG/P-S4N
KMDGX-6SG_P-S4N
J10
1
FPU JUMPER
J12
1
Power Jumper
J13
1
WC1602A
DS2
1
CVS-1508
LS1
1
108-0041-EVX
Power Switch
S1
1
TS02-66-50-BK-260-SCR-D
S2
2
N6L30T3N-103-3030
VR1, VR2
1
LED
D2
1
1000 uF
C1
1
47 nF
C2
2
47nF
C5, C6
2
100 μF
C7, C8
4
10 uF
C11, C15, C23, C24
1
JZ300
C14
52
0.1 μF
C17, C18, C19, C20, C21, C22, C29, C30 +44
4
47 pF
C50, C70, C71, C83
5
1 μF
C52, C67, C68, C69, C86
12
10 μF
C87, C88, C89, C91, C92, C93, C94, C95 +4
2
510 Ω
R20, R21
17
4.7k Ω
R25, R26, R27, R28, R29, R30, R31, R32 +9
1
220 Ω
R36
1
330 Ω
R41
9
33 Ω
R44, R45, R46, R47, R48, R49, R50, R51 +1
1
10 Ω
R53

8088-MicroATX-Computer design files

The KiCad project lives in the CPTforever/8088-MicroATX-Computer repository on GitHub; these links point at the commit this page was built from.

8088-MicroATX-Computer: common questions

How big is the 8088-MicroATX-Computer PCB?

The 8088-MicroATX-Computer measures 244 × 244 mm, has 6 copper layers and is 1.528 mm thick.

How many components are on the 8088-MicroATX-Computer?

184 components, from 62 distinct parts. The full bill of materials is listed on this page.

Where can I download the 8088-MicroATX-Computer design files?

From the CPTforever/8088-MicroATX-Computer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 8088-MicroATX-Computer design in my own project?

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

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