HardLabs

VIC Cart 1

hansliss·VIC_Cart_1·pcb/VIC_Cart_1.kicad_pcb

VIC Cart 1 PCB layout, top view — open source AVR/Arduino board by hansliss

About the VIC Cart 1 PCB

VIC Cart 1 is an open source AVR/Arduino PCB design by hansliss, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 126.5 × 74.8 mm, with 27 components from 15 distinct parts.

Its main chip is the ATMEGA328P-PU, from the AVR/Arduino family. Other key parts include the HM628512BFP-5, M27C160, 74LS148, 74LS21 and 74LS32. By type, the board carries 11 capacitors, 9 ICs, 3 resistors, 2 connectors, 1 crystal and 1 diode.

From the project

A basic programmable RAM/ROM expansion for VIC-20

RAM is handled by an KM681000CLG-5L, 128kx8 static RAM ~RAM1,~RAM2,~RAM3 are NAND:ed together, so the 3k area is handled as a single block A0-A13 are provided by the cartridge port, while A14 and A15 are connected to ~BLK2 and ~BLK1, respectively. With 8k blocks (using 13 address lines)

NOTE: The RAM addressing is incorrect and needs to be fixed!

blk addresses 0 0400-0fff 01111 01 1 2000-3fff 10111 11 2 4000-5fff 11011 00 3 6000-7fff 11101 01 5 a000-bfff 11110 11

Main components on the VIC Cart 1

ATMEGA328P-PUHM628512BFP-5M27C16074LS14874LS2174LS32

VIC Cart 1 bill of materials (BOM)

27 components, 15 distinct parts.

QtyPartRefs
1
ATMEGA328P-PU
U1
1
HM628512BFP-5
U2
1
M27C160
U3
1
74LS148
U4
2
74LS21
U5, U6
3
74LS32
U7, U8, U9
1
16MHz
Y1
1
I2C Display
J2
1
Buttons
J3
1
1N4148
D1
1
100nf
C1
2
22pf
C2, C3
1
10uf
C4
7
0.1uf
C5, C6, C7, C8, C9, C10, C11
3
10k
R1, R2, R3

VIC Cart 1 design files

The KiCad project lives in the hansliss/VIC_Cart_1 repository on GitHub; these links point at the commit this page was built from.

VIC Cart 1: common questions

What microcontroller does the VIC Cart 1 use?

The VIC Cart 1 is built around the ATMEGA328P-PU, from the AVR/Arduino family.

How big is the VIC Cart 1 PCB?

The VIC Cart 1 measures 126.5 × 74.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VIC Cart 1?

27 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the VIC Cart 1 design files?

From the hansliss/VIC_Cart_1 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the VIC Cart 1 design in my own project?

Yes, under the terms of its AGPL-3.0 license, which hansliss chose for the repository.

Can I test firmware for the VIC Cart 1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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