8-bit computer Input Module

xrayer2000·8-bit-computer-Documentation·Kicad/8-bit-computer/8-bit computer_Input_Module/8-bit computer_Input_Module.kicad_pcb

8-bit computer Input Module layout, top view — open source board by xrayer2000

About the 8-bit computer Input Module

8-bit computer Input Module is an open source PCB design by xrayer2000, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board, with 106 components from 34 distinct parts.

Other key parts include the MM94C922, 74HCT04, 74HCT00, 74HCT32 and NE555D. By type, the board carries 47 ICs, 30 capacitors, 12 resistors and 4 switches.

From the project

My 8-bit computer

This project is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).

You are free to: - Share (copy and redistribute the material in any medium or format) - Adapt (remix, transform, and build upon the material)

Under the conditions that: - You must give appropriate credit. - You may not use the material for commercial purposes.

Main components on the 8-bit computer Input Module

MM94C92274HCT04 74HCT00 74HCT32 NE555D404374HCT08 740874HCT19174HCT245 407816x16_key_pad74HCT161 74HCT574 74HCT139 74HCT244MC144957-segment_display

8-bit computer Input Module bill of materials (BOM)

106 components, 34 distinct parts.

Qty	Part	Footprint	Refs
1	MM94C922		IC1
11	74HCT04		U1, U6, U9, U10, U14, U19, U21, U26 +3
4	74HCT00		U2, U12, U13, U15
9	74HCT32		U3, U7, U8, U11, U16, U20, U22, U23 +1
4	NE555D	SOIC-8_3.9x4.9mm_P1.27mm	U4, U5, U30, U37
1	4043		U17
1	74HCT08		U18
2	7408		U24, U25
2	74HCT191		U31, U32
1	74HCT245		U34
1	4078		U35
1	16x16_key_pad		U36
2	74HCT161		U38, U39
1	74HCT574		U40
1	74HCT139		U41
2	74HCT244		U42, U43
1	MC14495		U44
2	7-segment_display		U45, U46
2	10uF		0.1Uf1, 0.1Uf2
10	SW_Push		B1, B2, B3, B4, B5, B6, B7, B8 +2

Show 14 more

Qty	Part	Footprint	Refs
1	R_Pot		RV1
4	~		S1, S2, S3, S4
20	0.1uF		C1, C2, C4, C7, C10, C12, C17, C18 +12
2	100uF		C3, C9
1	1nF		C5
2	10uF		C6, C8
2	1uF		C11, C13
3	100nF		C14, C15, C16
5	100K		R2, R7, R8, R9, R11
2	1K		R3, R5
1	10K		R4
1	100		R6
1	84		R10
2	470		R14, R15

8-bit computer Input Module design files

The KiCad project lives in the xrayer2000/8-bit-computer-Documentation repository on GitHub; these links point at the commit this page was built from.

8-bit computer Input Module: common questions

How big is the 8-bit computer Input Module?

The 8-bit computer Input Module has 2 copper layers and is 1.6 mm thick.

How many components are on the 8-bit computer Input Module?

106 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the 8-bit computer Input Module design files?

From the xrayer2000/8-bit-computer-Documentation repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 8-bit computer Input Module design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

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