2 layers437.8 × 127.8 mm C128DKEYBOARD, the printed circuit board in 3D

C128DKEYBOARD

C128D_Keyboard

Size: 437.8 × 127.8 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 119
Nets: 77
Pads: 395
Tracks, vias: 983, 29
Pours: 1
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 22 Sep 2024
Updated: 27 Sep 2024

Overview

C128DKEYBOARD is an open-source printed circuit board by danwerner21, from the danwerner21/C128D_Keyboard repository on GitHub. It is a 2-layer board of 437.8 × 127.8 mm with 119 parts on 77 nets, routed with 983 tracks and 29 vias.

It is built around the ATTINY2313-20PU and 74LS125DC. Its parts include 82 switches, 7 resistors, 2 ICs, 2 diodes and 1 capacitor. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

https://pcbkit.io/boards/danwerner21/C128D_Keyboard

The board's own page, for a message or a post.

Source

Repository: danwerner21/C128D_Keyboard
Board file: C128DKEYBOARD/C128DKEYBOARD.kicad_pcb
Commit: bcc637f
Licence: Not stated

Parts

119

Qty	Value	Footprint	References
11	DEAD	pcb:CHERRY_PLATE_100H	K1, K2, K3, K14, K15, K16, K18, K19, K20, K43, K44
4	470Ω	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R3, R4, R6, R7
3	1KΩ	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1, R2, R5
1	+	pcb:CHERRY_PLATE_100H	K35
1	,	pcb:CHERRY_PLATE_100H	K88
1	-	pcb:CHERRY_PLATE_100H	K36
1	.	pcb:CHERRY_PLATE_100H	K89
1	/	pcb:CHERRY_PLATE_100H	K90
1	0	pcb:CHERRY_PLATE_100H	K34
1	0.1µF	Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm	C1
1	1	pcb:CHERRY_PLATE_100H	K25
1	2	pcb:CHERRY_PLATE_100H	K26
1	3	pcb:CHERRY_PLATE_100H	K27
1	4	pcb:CHERRY_PLATE_100H	K28
1	4080	pcb:CHERRY_PLATE_100H	K11
1	4080	LED_THT:LED_D3.0mm	D4
1	5	pcb:CHERRY_PLATE_100H	K29
1	6	pcb:CHERRY_PLATE_100H	K30
1	7	pcb:CHERRY_PLATE_100H	K31
1	74LS125	Package_DIP:DIP-14_W7.62mm_Socket_LongPads	U3
1	8	pcb:CHERRY_PLATE_100H	K32
1	9	pcb:CHERRY_PLATE_100H	K33
1	:	pcb:CHERRY_PLATE_100H	K72
1	;	pcb:CHERRY_PLATE_100H	K73
1	=	pcb:CHERRY_PLATE_100H	K42
1	A	pcb:CHERRY_PLATE_100H	K63
1	ALT	pcb:CHERRY_PLATE_125H	K99
1	ASTERISK	pcb:CHERRY_PLATE_100H	K57
1	AT	pcb:CHERRY_PLATE_100H	K56
1	ATtiny2313-20P	Package_DIP:DIP-20_W7.62mm	U1
1	B	pcb:CHERRY_PLATE_100H	K85
1	BACKARROW	pcb:CHERRY_PLATE_100H	K24
1	C	pcb:CHERRY_PLATE_100H	K83
1	CAPS	LED_THT:LED_D3.0mm	D1
1	CAPSLOCK	pcb:CHERRY_PLATE_125H	K98
1	CLRHOME	pcb:CHERRY_PLATE_100H	K21
1	COMMODORE	pcb:CHERRY_PLATE_125H	K97
1	CONTROL	pcb:CHERRY_PLATE_150H	K45
1	CRSRLEFTRIGHT	pcb:CHERRY_PLATE_125H	K104
1	CRSRUPDOWN	pcb:CHERRY_PLATE_125H	K103
1	D	pcb:CHERRY_PLATE_100H	K65
1	DB25_Male	Connector_Dsub:DSUB-25_Male_Horizontal_P2.77x2.54mm_EdgePinOffset9.40mm	J1
1	DEAD	pcb:CHERRY_PLATE_125H	K102
1	E	pcb:CHERRY_PLATE_100H	K48
1	ESC	pcb:CHERRY_PLATE_100H	K4
1	F	pcb:CHERRY_PLATE_100H	K66
1	F1	pcb:CHERRY_PLATE_100H	K5
1	F3	pcb:CHERRY_PLATE_100H	K6
1	F5	pcb:CHERRY_PLATE_100H	K7
1	F7	pcb:CHERRY_PLATE_100H	K8
1	G	pcb:CHERRY_PLATE_100H	K67
1	H	pcb:CHERRY_PLATE_100H	K68
1	HELP	pcb:CHERRY_PLATE_100H	K9
1	I	pcb:CHERRY_PLATE_100H	K53
1	INSDEL	pcb:CHERRY_PLATE_200H	K37
1	J	pcb:CHERRY_PLATE_100H	K69
1	K	pcb:CHERRY_PLATE_100H	K70
1	KEYPAD_0	pcb:CHERRY_PLATE_200H	K93
1	KEYPAD_1	pcb:CHERRY_PLATE_100H	K76
1	KEYPAD_2	pcb:CHERRY_PLATE_100H	K77
1	KEYPAD_3	pcb:CHERRY_PLATE_100H	K78
1	KEYPAD_4	pcb:CHERRY_PLATE_100H	K59
1	KEYPAD_5	pcb:CHERRY_PLATE_100H	K60
1	KEYPAD_6	pcb:CHERRY_PLATE_100H	K61
1	KEYPAD_7	pcb:CHERRY_PLATE_100H	K39
1	KEYPAD_8	pcb:CHERRY_PLATE_100H	K40
1	KEYPAD_9	pcb:CHERRY_PLATE_100H	K41
1	KEYPAD_DOT	pcb:CHERRY_PLATE_100H	K92
1	KEYPAD_DOWN	pcb:CHERRY_PLATE_100H	K95
1	KEYPAD_ENTER	pcb:CHERRY_PLATE_200V	K75
1	KEYPAD_LEFT	pcb:CHERRY_PLATE_100H	K94
1	KEYPAD_MINUS	pcb:CHERRY_PLATE_100H	K17
1	KEYPAD_PLUS	pcb:CHERRY_PLATE_200V	K38
1	KEYPAD_RIGHT	pcb:CHERRY_PLATE_100H	K96
1	KEYPAD_UP	pcb:CHERRY_PLATE_100H	K79
1	L	pcb:CHERRY_PLATE_100H	K71
1	LINEFEED	pcb:CHERRY_PLATE_100H	K10
1	M	pcb:CHERRY_PLATE_100H	K87
1	N	pcb:CHERRY_PLATE_100H	K86
1	NOSCROLL	pcb:CHERRY_PLATE_100H	K12

The 95 most common of 119 parts.

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Questions

How big is the C128DKEYBOARD PCB?

It measures 437.8 × 127.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the C128DKEYBOARD use?

119 parts, built around the ATTINY2313-20PU and 74LS125DC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the C128DKEYBOARD KiCad files?

From the danwerner21/C128D_Keyboard repository on GitHub, at the commit this page was made from: the board is C128DKEYBOARD/C128DKEYBOARD.kicad_pcb and its schematic C128DKEYBOARD/C128DKEYBOARD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the C128DKEYBOARD design in my own project?

Its repository states no licence, so its author keeps all rights: ask danwerner21 before reusing the design.