4 layers49.9 × 34.7 mm
4 layers113 × 69 mm
VideoMacPac
apmcpherson/VideoMacPacHack27Clone of the Video Mac Pac PDS video card for the Macintosh Portable
- Size
- 113 × 69 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 146
- Pads
- 415
- Tracks, vias
- 1,399, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 4 Apr 2020
- Updated
- 6 Apr 2020
Overview
VideoMacPac is an open-source printed circuit board by apmcpherson, from the apmcpherson/VideoMacPacHack repository on GitHub. It is a 4-layer board of 113 × 69 mm with 30 parts on 146 nets, routed with 1,399 tracks and 17 vias.
It is built around the 74AHCT1G00SE, 74F521PC and TPS2030D. Its parts include 9 ICs, 8 capacitors, 4 resistors, 3 crystals and 2 connectors.
Main components
3
74AHCT1G00SE
SOT-353-40℃~+125℃ 1 100mV、550mV 1uA 2 2V 3.7V~3.94V、4.4V~4.5V 4.5V~5.5V 7.9ns@5V,50pF 74AHCT Series 800mV 8mA 8mA NAND Gate Push-pull Schmitt trigger SOT-353 Logic Gates ROHSDiodes IncorporatedLogic Gates
74F521PC
PDIP-200℃~+70℃ 10ns@5V,50pF 1mA 20mA 4.5V~5.5V 8 A=B Active Low Multi-device cascading PDIP-20 Digital Comparators ROHSonsemiDigital Comparators
TPS2030D
SOIC-8-40℃~+125℃ 1 2.7V~5.5V 200mA 33mΩ Active High High Side Switch Short-Circuit Protection(SCP)、Undervoltage Protection(UVP)、Overcurrent Protection(OCP)、Over Temperature Protection SOIC-8 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
README
hardware/VideoMacPac/README.mdVideoMacPacHack
These design materials are in the public domain, with no warranty whatsoever. See documentation on this repository for further design notes.
Kicad files
VideoMacPac.pro: Kicad projectVideoMacPac.sch: Kicad schematicVideoMacPac.kicad_pcb: Kicad PCB designVideoMacPac_schematic.pdf: Schematic in PDF format
Gerbers
This a 4-layer PCB which can be fabricated from the files in the gerbers directory.
VideoMacPac-F.Cu.gbr: top copperVideoMacPac-In1.Cu.gbr: inner layer 1 copperVideoMacPac-In2.Cu.gbr: inner layer 2 copperVideoMacPac-B.Cu.gbr: bottom copperVideoMacPac-F.SilkS.gbr: top silkscreenVideoMacPac-F.Mask.gbr: top soldermaskVideoMacPac-B.Mask.gbr: bottom soldermaskVideoMacPac-Edge.Cuts.gbr: board outlineVideoMacPac.drl: Excellon drill file
Bill of Materials
| Name | Value |
|---|---|
| C1-C8 | 0.1uF axial capacitors |
| J1 | 20-pin IDC header |
| J2 | 96-pin right-angle EuroDIN |
| R1-R4 | 4.7k resistors |
| RN1-RN2 | 3x47 ohm SIP resistor networks |
| RN3-RN4 | 4x47 ohm SIP resistor networks |
| U1 | XC2018-100-PC84 (faster can be used) |
| U2 | 74F521 (DIP) |
| U3 | 74AHCT1G00 (SOT23) |
| U4 | 74F244 (DIP) -- do not substitute |
| U5-U8 | MT42C4064Z-12 (faster can be used) |
| U9 | TPS2030 (DIP) |
| X1 | 36MHz 4-pin oscillator |
| X2 | 50.35MHz 4-pin oscillator |
| X3 | 57.2832MHz 4-pin oscillator |
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0.1uF | Capacitors_THT:C_Axial_L5.1mm_D3.1mm_P7.50mm_Horizontal | C1, C2, C3, C4, C6, C7, C8, C9 |
| 4 | 4.7k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4 |
| 4 | 42C4064 | VideoMacPac:SIP24 | U5, U6, U7, U8 |
| 2 | 47x3 | Resistors_THT:R_Array_SIP6 | RN1, RN2 |
| 2 | 47x4 | Resistors_THT:R_Array_SIP8 | RN3, RN4 |
| 1 | 74AHCT1G00 | TO_SOT_Packages_SMD:SOT-23-5 | U3 |
| 1 | 74F521 | Housings_DIP:DIP-20_W7.62mm | U2 |
| 1 | 74LS244 | Housings_DIP:DIP-20_W7.62mm | U4 |
| 1 | ACO-36MHz | Oscillators:Oscillator_DIP-14 | X1 |
| 1 | ACO-50.35MHz | Oscillators:Oscillator_DIP-14 | X2 |
| 1 | ACO-57.2832MHz | Oscillators:Oscillator_DIP-14 | X3 |
| 1 | C96ABC | Connectors:C96ABCMD | J2 |
| 1 | CONN_02X10 | Connectors:IDC_Header_Straight_20pins | J1 |
| 1 | TPS2030 | Housings_DIP:DIP-8_W7.62mm | U9 |
| 1 | XC2018-PC84 | Sockets:PLCC84 | U1 |
Similar boards
- 2 layers150 × 150 mm
- 4 layers254 × 134.6 mm
Z280-S100
cm68/Z280-S100
16-bit Zilog Z280 CPU card for the IEEE-696 S-100 backplane; glue logic in two ATF1508AS CPLDs
61 parts1CERN-OHL-P-2.0 - 2 layers101.6 × 101.6 mm
- 4 layers55.5 × 65 mm
Jitx design
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
30 parts5.1kGPL-3.0 - 4 layers23 × 53 mm
Easyduino STM32F103
Hanqaqa/Easyduino
Easily dive into different PCB KiCad designs of the most popular microcontroller devboards
30 parts755CERN-OHL-P-2.0 - 4 layers112.1 × 64 mm
- 4 layers15.2 × 19 mm
Questions
How big is the VideoMacPac PCB?
It measures 113 × 69 mm and has 4 copper layers, 1.6 mm thick.
What parts does the VideoMacPac use?
30 parts, built around the 74AHCT1G00SE, 74F521PC and TPS2030D. 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 VideoMacPac KiCad files?
From the apmcpherson/VideoMacPacHack repository on GitHub, at the commit this page was made from: the board is hardware/VideoMacPac/VideoMacPac.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the VideoMacPac design in my own project?
Its repository states no licence, so its author keeps all rights: ask apmcpherson before reusing the design.