2 layers143.3 × 77.5 mm
Pedisk
mnaberez/pedisk2
Reverse engineering the CGRS Microtech PEDISK II disk system for Commodore PET/CBM computers
43 parts3
2 layers100 × 50 mm
LogicBoard
RedlabsDE/LogicBoard- Size
- 100 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 94
- Pads
- 257
- Tracks, vias
- 638, 39
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 17 Apr 2025
- Updated
- 22 Apr 2025
Overview
LogicBoard is an open-source printed circuit board by RedlabsDE, from the RedlabsDE/LogicBoard repository on GitHub. It is a 2-layer board of 100 × 50 mm with 70 parts on 94 nets, routed with 638 tracks and 39 vias.
It is built around the 74LS367PC, 74LS05P-E and 74LS32SC, with the 74LS86 among its other parts. Its parts include 39 resistors, 10 capacitors, 6 ICs, 6 connectors and 2 diodes.
Main components
4
74LS367PC
PDIP-16Buffers, Drivers, Receivers, TransceiversTexas Instruments74LS05P-E
-- Inverters ROHSRenesas ElectronicsLogic Gates
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
74LS86
DIP-14-20℃~+75℃ 10mA 2.7V 23ns@5V,15pF 2V 400mV 400uA 5V 74LS 800mV 8mA XOR Gate DIP-14 Logic Gates ROHSHITLogic Gates
README
README.mdParts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R10, R12, R16, R21, R22, R23, R24, R25, R27, R29, R30, R31, R34, R35, R36 +7 |
| 13 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R11, R13, R14, R15, R17, R18, R19, R20, R26, R28, R32, R33 |
| 9 | 100n | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C9, C10 |
| 4 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2, H3, H4 |
| 3 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R3, R5 |
| 3 | Conn_02x07_Odd_Even | Library:PinHeader_2x07_P2.54mm_Wannenstecker_WSL14 | J3, J6, J9 |
| 2 | 74LS367 | Package_DIP:DIP-16_W7.62mm_LongPads | U5, U6 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 10u | Capacitor_THT:C_Radial_D6.3mm_H11.0mm_P2.50mm | C8 |
| 1 | 1N62xxA | Diode_THT:D_DO-201AE_P3.81mm_Vertical_AnodeUp | D1 |
| 1 | 74LS05 | Package_DIP:DIP-14_W7.62mm_LongPads | U2 |
| 1 | 74LS08 | Package_DIP:DIP-14_W7.62mm_LongPads | U1 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm_LongPads | U4 |
| 1 | 74LS86 | Package_DIP:DIP-14_W7.62mm_LongPads | U3 |
| 1 | Conn_01x02_Socket | Connector_JST:JST_NV_B02P-NV_1x02_P5.00mm_Vertical | J1 |
| 1 | Conn_02x03_Odd_Even | Library:PinHeader_2x03_Wannenstecker_WSL6G | J5 |
| 1 | D | Diode_THT:D_DO-201AE_P3.81mm_Vertical_AnodeUp | D2 |
| 1 | Polyfuse | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | F1 |
| 1 | USB_B_Mini | Connector_USB:USB_Mini-B_Wuerth_65100516121_Horizontal | J2 |
Questions
How big is the LogicBoard PCB?
It measures 100 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LogicBoard use?
70 parts, built around the 74LS367PC, 74LS05P-E, 74LS32SC and 74LS86. 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 LogicBoard KiCad files?
From the RedlabsDE/LogicBoard repository on GitHub, at the commit this page was made from: the board is LogicBoard KiCAD/LogicBoard.kicad_pcb and its schematic LogicBoard KiCAD/LogicBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LogicBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask RedlabsDE before reusing the design.
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