VideoBoard v1
About the VideoBoard v1 PCB
VideoBoard v1 is an open source PCB design by roberto314, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 100 × 100 mm, with 77 components from 27 distinct parts.
Other key parts include the SN74LVCC4245ANSR, 74LS541, IS63WV1288DBLL-10xLI, XC9572XL-TQ100 and EPM570T144. By type, the board carries 25 capacitors, 24 connectors, 12 ICs, 10 resistors, 4 transistors and 1 jumper.
It belongs with the retro computing and usb & debug tools designs in this gallery.
From the project
A modular 8-bit Computer able to recreate (nearly) every Retro computer of the late 70s to mid 80s.
A modular 8-bit Computer able to recreate (nearly) every microcomputer of the mid 70s to early 80s in Hardware without FPGAs (although an FPGA can be added). Can also be used as a teaching tool for:
VHDL or Verilog C RTOS (STM32F401 runs ChibiOS. Link: https://www.chibios.org) Python bash and linux in general (Olimex board runs linux with fbterm and tmux) Harwaredesign Timing of CPUs maybe Assembler SPI and I2C Interfaces CPLDs and FPGAs
Main components on the VideoBoard v1
VideoBoard v1 bill of materials (BOM)
77 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74LVCC4245ANSR | SO-24_5.3x15mm_P1.27mm | U1 |
| 5 | 74LS541 | TSSOP-20_4.4x6.5mm_P0.65mm | U2, U8, U9, U10, U11 |
| 3 | IS63WV1288DBLL-10xLI | TSOP-II-32_21.0x10.2mm_P1.27mm | U3, U4, U7 |
| 1 | XC9572XL-TQ100 | TQFP-100_14x14mm_P0.5mm | U5 |
| 1 | EPM570T144 | LQFP-144_20x20mm_P0.5mm | U6 |
| 1 | SN74LVC125AD | SOIC-14_3.9x8.7mm_P1.27mm | U12 |
| 4 | BC849 | SOT-23_Handsoldering | Q1, Q2, Q3, Q4 |
| 2 | BUS | PinSocket_2x20_P2.54mm_Vertical | J1, J2 |
| 1 | Conn_01x14 | PinSocket_1x14_P2.54mm_Vertical | J5 |
| 2 | JTAG | PinHeader_2x05_P2.54mm_Horizontal | J6, J8 |
| 1 | Inputs | PinSocket_2x17_P2.54mm_Vertical | J7 |
| 1 | Outputs | PinSocket_2x17_P2.54mm_Vertical | J9 |
| 1 | EGA Video | PinHeader_2x05_P2.54mm_Horizontal | J10 |
| 14 | . | PinHeader_1x01_P1.27mm_Vertical | J11, J12, J13, J15, J16, J17, J18, J19 +6 |
| 1 | RGB2HDMI | PinHeader_2x03_P2.54mm_Horizontal | J14 |
| 1 | Conn_01x02 | PinSocket_1x02_P2.54mm_Vertical | J26 |
| 1 | 5Vext | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | L_Small | L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L1 |
| 23 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 +15 |
| 2 | 22u/16 | CP_EIA-7343-31_Kemet-D | C24, C25 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 3k3 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 8k2 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 3 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R8, R9 |
| 1 | 270E | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 1 | 470E | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5 |
| 1 | 82E | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R6 |
| 2 | 100E | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R7, R10 |
VideoBoard v1 design files
The KiCad project lives in the roberto314/Unicomp3 repository on GitHub; these links point at the commit this page was built from.
VideoBoard v1: common questions
How big is the VideoBoard v1 PCB?
The VideoBoard v1 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the VideoBoard v1?
77 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the VideoBoard v1 design files?
From the roberto314/Unicomp3 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the VideoBoard v1 design in my own project?
Yes, under the terms of its BSD-2-Clause license, which roberto314 chose for the repository.
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