HardLabs

Z80Card

galjonsfigur·Z80Card·hardware/Z80Card.kicad_pcb

Z80Card PCB layout, top view — open source AVR/Arduino board by galjonsfigur

About the Z80Card PCB

Z80Card is an open source AVR/Arduino PCB design by galjonsfigur, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 85.6 × 54 mm, with 77 components from 36 distinct parts.

Its main chip is the ATmega32A-A, from the AVR/Arduino family. Other key parts include the 74HC00, Z84C00xxAEG, 628128, TC2117-3.3VDB and 74VHC125. By type, the board carries 25 resistors, 23 capacitors, 10 ICs, 9 diodes, 3 connectors and 2 transistors.

It belongs with the retro computing and usb & debug tools designs in this gallery.

From the project

Z80 Single Board Computer that fits in ID-1 card dimenstions, compatibile with Z80-MBC2 project

This repository contains Schematics, KiCad design files and software for Z80 Single Board Computer that fits in ID-1 card dimensions. It's SMD version of a very popular Z80-MBC2 project with all addons (I2C I/O expander, SD Card, RTC, USB-UART) built-in. Fully compatible with IOS firmware written for ATMega32 used on Z80-MBC2. Assembly does not involve components smaller than 0805 SMD passives and ICs smaller than SOT-23-5.

Z80Card, from the project README
From the project README

Main components on the Z80Card

74HC00Z84C00xxAEG628128ATmega32A-ATC2117-3.3VDB74VHC125MCP23017_SOCH343GDS323174AHC1G125

Z80Card bill of materials (BOM)

77 components, 36 distinct parts.

QtyPartRefs
1
74HC00
U1
1
Z84C00xxAEG
U2
1
628128
U3
1
ATmega32A-A
U4
1
TC2117-3.3VDB
U5
1
74VHC125
U6
1
MCP23017_SO
U7
1
CH343G
U8
1
DS3231
U9
1
74AHC1G125
U11
2
MMBT3906
Q1, Q2
1
16MHz
Y1
1
USB_A_Plug
J1
1
2x10 IDC Female
J2
1
Micro SD Card Slot TF-015
J4
1
MS621F
BT1
2
PTS810
SW1, SW2
1
BAT54A
D1
2
BAT42W-V
D2, D9
1
WHITE
D3
Show 16 more
QtyPartRefs
2
YELLOW
D4, D6
1
GREEN
D5
1
RED
D7
1
BLUE
D8
1
80R
FB1
16
100nF
C1, C2, C3, C5, C6, C7, C9, C10 +8
2
10pF
C4, C8
1
4.7uF
C12
4
1uF
C13, C14, C16, C18
8
10k
R1, R4, R8, R9, R11, R13, R14, R20
2
1k2
R2, R21
4
100
R3, R5, R10, R12
3
4k7
R6, R7, R18
1
33k
R15
3
2k2
R16, R17, R19
4
10k
RN1, RN2, RN3, RN4

Z80Card design files

The KiCad project lives in the galjonsfigur/Z80Card repository on GitHub; these links point at the commit this page was built from.

Z80Card: common questions

What microcontroller does the Z80Card use?

The Z80Card is built around the ATmega32A-A, from the AVR/Arduino family.

How big is the Z80Card PCB?

The Z80Card measures 85.6 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Z80Card?

77 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the Z80Card design files?

From the galjonsfigur/Z80Card repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Z80Card design in my own project?

Yes, under the terms of its GPL-3.0 license, which galjonsfigur chose for the repository.

Can I test firmware for the Z80Card 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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