2 layers320 × 150 mm
2 layers136.2 × 107.2 mm
Pxl-380
dbalsom/pxl-380A reverse-engineering of the FTG PXL-380 Light Pen Interface Card
- Size
- 136.2 × 107.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 81
- Nets
- 165
- Pads
- 560
- Tracks, vias
- 1,893, 131
- Pours
- 39
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Jul 2026
- Updated
- 29 Jul 2026
Overview
Pxl-380 is an open-source printed circuit board by dbalsom, from the dbalsom/pxl-380 repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board of 136.2 × 107.2 mm with 81 parts on 165 nets, routed with 1,893 tracks and 131 vias.
It is built around the 74F161APC, 74LS161DC and 74LS374PC, with the 74LS74PC, 74LS85DC and 74LS00SC among its other parts. Its parts include 31 capacitors, 22 ICs, 11 resistors, 7 connectors and 1 switch. It belongs with the interfaces and adapters boards of this library.
Main components
8
74F161APC
PDIP-160℃~+70℃ 1 120MHz 4.5V~5.5V Asynchronous Divide-by-2 Rising Edge Synchronous Up Counter PDIP-16 Counters, Dividers ROHSonsemiCounters, Dividers
74LS161DC
-0℃~+70℃ 14ns 32MHz 4 4.75V~5.25V 74LS 93mW Asynchronous Binary Counter Programmable divide ratio、Reset function、Cascade counter、Synchronous counting Rising Edge Synchronous - Counters, DividersTexas InstrumentsCounters, Dividers
74LS374PC
PDIP-200ns 0℃~+70℃ 1 20ns 28ns@5V,45pF 35MHz 4.75V~5.25V 45mA 74LS Series 8 D-Type Rising Edge Tri-State PDIP-20 Flip FlopsonsemiFlip Flops
74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip Flops
74LS85DC
CDIP-16-55℃~+125℃ 10mA 24ns Four channels TTL CDIP-16 Comparators ROHSTexas InstrumentsComparators
74LS00SC
-0℃~+70℃ 15ns@5V,50pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA NAND Gate - Logic Gates ROHSTexas InstrumentsLogic Gates74LS112P-E
--20℃~+75℃ 0ns 15ns@5V,15pF 2 20ns 30MHz 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Falling Edge JK-Type Set and Reset - Flip Flops ROHSRenesas ElectronicsFlip Flops74LS14PC
PDIP-14InvertersTexas Instruments
README
README.mdThe FTG PXL-380 Light Pen Interface
This is a reverse-engineering of the FTG PXL-380 light pen interface card in KiCad v10.0
kicad
Contains the KiCad project.
model
Contains a GLB 3D-model of the PXL-380 card produced by 3D scanning with RealityScan.
License
CC-BY-SA-4.0
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | C_Small | Capacitor_THT:C_Rect_L4.6mm_W2.0mm_P2.50mm_MKS02_FKP02 | C4, C5, C6, C7, C12, C13, C14, C17, C22, C24, C25, C26, C29, C30, C31, C32 +1 |
| 5 | 0.1uF | Capacitor_THT:C_Rect_L4.6mm_W2.0mm_P2.50mm_MKS02_FKP02 | C1, C2, C3, C11, C16 |
| 5 | 470Ω | Capacitor_THT:C_Rect_L4.6mm_W2.0mm_P2.50mm_MKS02_FKP02 | C18, C19, C20, C21, C27 |
| 3 | 74F161 | Package_DIP:DIP-16_W7.62mm | U13, U14, U15 |
| 3 | 74LS161 | Package_DIP:DIP-16_W7.62mm | U7, U8, U9 |
| 3 | 74LS374 | Package_DIP:DIP-20_W7.62mm | U10, U12, U16 |
| 3 | MM74C86 | Package_DIP:DIP-14_W7.62mm | U19, U20, U21 |
| 3 | R_Small | isa_card_template:R_Axial_P12.70mm_Horizontal | R8, R9, R12 |
| 2 | 10 kΩ | isa_card_template:R_Axial_P12.70mm_Horizontal | R7, R11 |
| 2 | 100 kΩ | isa_card_template:R_Axial_P12.70mm_Horizontal | R6, R10 |
| 2 | 74LS74 | Package_DIP:DIP-14_W7.62mm | U1, U2 |
| 2 | 74LS85 | Package_DIP:DIP-16_W7.62mm | U4, U6 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2 |
| 1 | 0.47uF | Capacitor_THT:C_Rect_L7.0mm_W2.5mm_P5.00mm | C23 |
| 1 | 100 Ω | isa_card_template:R_Axial_P12.70mm_Horizontal | R13 |
| 1 | 100Ω | isa_card_template:R_Axial_P12.70mm_Horizontal | R5 |
| 1 | 10kΩ | Resistor_THT:R_Array_SIP10 | RN1 |
| 1 | 22uF 25V | Capacitor_THT:CP_Radial_Tantal_D7.0mm_P5.00mm | C28 |
| 1 | 270 pF | Capacitor_THT:C_Rect_L4.6mm_W2.0mm_P2.50mm_MKS02_FKP02 | C35 |
| 1 | 33Ω | isa_card_template:R_Axial_P12.70mm_Horizontal | R3 |
| 1 | 390Ω | isa_card_template:R_Axial_P12.70mm_Horizontal | R14 |
| 1 | 4.7uF 50V | Capacitor_THT:CP_Radial_Tantal_D7.0mm_P5.00mm | C9 |
| 1 | 6P6C | Connector_RJ:RJ12_Amphenol_54601-x06_Horizontal | J1 |
| 1 | 74ALS138 | Package_DIP:DIP-16_W7.62mm | U5 |
| 1 | 74LS00 | Package_DIP:DIP-14_W7.62mm | U17 |
| 1 | 74LS08 | Package_DIP:DIP-14_W7.62mm | U11 |
| 1 | 74LS112 | Package_DIP:DIP-16_W7.62mm | U3 |
| 1 | 74LS14 | Package_DIP:DIP-14_W7.62mm | U22 |
| 1 | 74LS244 | Package_DIP:DIP-20_W7.62mm | U18 |
| 1 | Bus_ISA_16bit | isa_card_template:PXL_380_isa_connector | ISA1 |
| 1 | CXO_DIP14 | Oscillator:Oscillator_DIP-14 | Y1 |
| 1 | Conn_02x04_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J3 |
| 1 | FerriteBead_Small | Inductor_THT:L_Axial_L5.3mm_D2.2mm_P2.54mm_Vertical_Vishay_IM-1 | FB1 |
| 1 | L_Ferrite | Inductor_THT:L_Axial_L7.0mm_D3.3mm_P12.70mm_Horizontal_Fastron_MICC | L1 |
| 1 | Light Pen Header (External) | isa_card_template:LightPenHeader_1x07_P2.54mm_Horizontal | J5 |
| 1 | Light Pen Header Internal | isa_card_template:LightPenHeader_1x07_P2.54mm_Vertical | J6 |
| 1 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H3 |
| 1 | SW_DIP_x08 | Button_Switch_THT:SW_DIP_SPSTx08_Slide_9.78x22.5mm_W7.62mm_P2.54mm | S1 |
| 1 | Sync Header (External) | isa_card_template:SyncHeader_1x06_P2.54mm_Horizontal | J7 |
| 1 | Sync Header (Internal) | isa_card_template:SyncHeader_1x06_P2.54mm_Vertical | J8 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J2 |
The 80 most common of 81 parts.
Questions
How big is the Pxl-380 PCB?
It measures 136.2 × 107.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pxl-380 use?
81 parts, built around the 74F161APC, 74LS161DC, 74LS374PC and 74LS74PC. 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 Pxl-380 KiCad files?
From the dbalsom/pxl-380 repository on GitHub, at the commit this page was made from: the board is kicad/pxl-380/pxl-380.kicad_pcb and its schematic kicad/pxl-380/pxl-380.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pxl-380 design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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