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Vectron vga plus v2

nickbild·vectron_vga_plus_v2·kicad/kicad.kicad_pcb

Vectron vga plus v2 PCB layout, top view — open source board by nickbild
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About the Vectron vga plus v2 PCB

Vectron vga plus v2 is an open source PCB design by nickbild, published on GitHub. It is a 2-layer board measuring 162.8 × 104.8 mm, with 78 components from 23 distinct parts.

Other key parts include the 74LS157, SN74LS74AN, SN74LS682N, 74LS161 and SN74HC32N. By type, the board carries 31 capacitors, 29 ICs, 11 connectors, 6 resistors and 1 crystal.

It belongs with the retro computing designs in this gallery.

From the project

Vectron VGA Plus v2 generates a 640x480@60Hz VGA signal and has an interface that works with retro computers or microcontrollers.

Vectron VGA Plus v2 generates a 640x480@60Hz VGA signal and has an interface that works with retro computers or microcontrollers.

Vectron VGA Plus v2 is an improvement on the earlier design.

The key to the simplified design of the Vectron VGA Plus boards is to use more RAM and less logic. So, for example, instead of having counters and flip flops, etc. to time each horizontal sync, that logic is embedded in the data in memory. Memory addresses are sequentially incremented by an osciallator, and the contents of each memory address specify what signals to output (R/G/B/H sync/V sync). Each of…

Vectron vga plus v2, from the project README
From the project README

Main components on the Vectron vga plus v2

74LS157SN74LS74ANSN74LS682N74LS161SN74HC32NSN74LS04NAS6C4008-55PCNSN74LS244NSN74LS08N

Vectron vga plus v2 bill of materials (BOM)

78 components, 23 distinct parts.

QtyPartRefs
10
74LS157
U1, U2, U5, U6, U8, U9, U12, U13 +2
2
SN74LS74AN
U3, U22
2
SN74LS682N
U4, U10
5
74LS161
U7, U11, U14, U17, U19
1
SN74HC32N
U18
2
SN74LS04N
U20, U29
2
AS6C4008-55PCN
U21, U23
4
SN74LS244N
U24, U25, U26, U27
1
SN74LS08N
U28
1
CXO_DIP8
X1
3
Power
J1, J10, J11
1
Address In
J2
1
Counter Reset Value
J3
1
5V
J4
1
Mode In
J5
1
GND
J6
1
VGA Out
J7
1
L77HDE15SD1CH4F
J8
1
Data In
J9
3
CP
C1, C2, C3
Show 3 more
QtyPartRefs
28
C
C4, C5, C6, C7, C8, C9, C10, C11 +20
3
100
R1, R2, R6
3
200
R3, R4, R5

Vectron vga plus v2 design files

The KiCad project lives in the nickbild/vectron_vga_plus_v2 repository on GitHub; these links point at the commit this page was built from.

Vectron vga plus v2: common questions

How big is the Vectron vga plus v2 PCB?

The Vectron vga plus v2 measures 162.8 × 104.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Vectron vga plus v2?

78 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Vectron vga plus v2 design files?

From the nickbild/vectron_vga_plus_v2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Vectron vga plus v2 design in my own project?

The repository has no license, so all rights stay with nickbild. Use it as a reference, and ask the author before reusing the design.

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