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CFT Processor Board 0

alexiosc·cft·kicad/cft/cft-board0/cft-board0.kicad_pcb

CFT Processor Board 0 layout, top view — open source board by alexiosc

About the CFT Processor Board 0

CFT Processor Board 0 is an open source PCB design by alexiosc, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 233.4 × 280 mm, with 274 components from 50 distinct parts.

Other key parts include the 74HC193, 74HCT541, 74HC138, 74HC574 and 74HC541. By type, the board carries 110 capacitors, 85 ICs, 61 resistors, 11 diodes, 3 connectors and 1 crystal.

It belongs with the usb & debug tools designs in this gallery.

From the project

The CFT homebrew minicomputer

The CFT is a home-designed, home-built mini-computer made from scratch.

I've designed and built the instruction set, data path, processor, computer, software stack, cross-assembler, emulator, software toolchain and even some of the tools needed to do all this. You can call this a ‘fantasy mini’.

This project has been going since approximately 2001, in my Copious Free Time.

CFT Processor Board 0, from the project README
From the project README

Main components on the CFT Processor Board 0

74HC19374HCT54174HC13874HC57474HC54174AC54116V86116SA15TPG74HC7474HC1474LVC1G12574ACT24574HC59074LVC1G1774HC13974AC19174AC15774AC7474HC25174AC0874AC3274HC8674HC85AT27C020

CFT Processor Board 0 bill of materials (BOM)

274 components, 50 distinct parts — part numbers from the project's BOM.

QtyPartRefs
8
74HC193
U201, U203, U206, U208, U301, U303, U306, U308
8
74HCT541
U202, U204, U205, U207, U302, U304, U305, U307
1
74HC138
U401
10
74HC574
U402, U406, U408, U604, U1101, U1104, U1302, U1705 +2
18
74HC541
U403, U407, U409, U410, U605, U608, U609, U610 +10
2
74AC541
U501, U503
7
16V8
U601, U602, U901, U1401, U1610, U1611, U1901
1
6116SA15TPG
U603
5
74HC74
U606, U902, U904, U1402, U1603
1
74HC14
U903
3
74LVC1G125
U906, U907, U1006
2
74ACT245
U909, U910
1
74HC590
U1001
1
74LVC1G17
U1002
2
74HC139
U1003, U1506
1
74AC191
U1004
1
74AC157
U1005
2
74AC74
U1403, U1404
2
74HC251
U1501, U1505
1
74AC08
U1502
Show 30 more
QtyPartRefs
1
74AC32
U1503
1
74HC86
U1504
1
74HC85
U1601
3
AT27C020
U1701, U1702, U1703
1
74AC257
U1704
1
74AC161
U1902
1
CXO_DIP8
X1
1
Conn_01x02
J1001
1
CFT-2021-Processor-Bus
P1
1
CFT-2021-Peripheral-Bus
P2
2
1kΩ
RV901, RV902
1
tactile_switch
SW1001
6
LED_ALT
D601, D901, D902, D903, D1402, D1404
5
CUS520
D1001, D1004, D1501, D1502, D1503
9
47µF
C1, C2, C3, C4, C5, C6, C7, C8 +1
85
100nF
C201, C202, C203, C204, C205, C206, C207, C208 +77
2
22pF
C920, C922
9
120pF
C921, C923, C1007, C1008, C1009, C1010, C1011, C1012 +1
1
47µF
C1002
1
1μF
C1016
3
10µF
C1711, C1712, C1713
31
4.7kΩ
R205, R207, R305, R307, R410, R610, R908, R922 +23
2
10kΩ
R601, R1603
6
680Ω
R602, R901, R902, R904, R1402, R1404
9
100Ω
R921, R923, R1007, R1008, R1009, R1010, R1011, R1012 +1
4
30Ω
R1003, R1015, R1017, R1019
1
0Ω
R1018
4
10kΩ
RN601, RN1301, RN1601, RN1602
1
10kΩ
RN1201
3
10kΩ
RN1603, RN1701, RN1702

CFT Processor Board 0 design files

The KiCad project lives in the alexiosc/cft repository on GitHub; these links point at the commit this page was built from.

CFT Processor Board 0: common questions

How big is the CFT Processor Board 0?

The CFT Processor Board 0 measures 233.4 × 280 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CFT Processor Board 0?

274 components, from 50 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the CFT Processor Board 0 design files?

From the alexiosc/cft repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the CFT Processor Board 0 design in my own project?

Yes, under the terms of its GPL-3.0 license, which alexiosc chose for the repository.

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