Easy z80
About the Easy z80 PCB
Easy z80 is an open source PCB design by skiselev, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 100 mm, with 58 components from 31 distinct parts.
Other key parts include the Z84C00, Z84C30, Z84C40, AS6C4008 and SST39SF040. By type, the board carries 23 capacitors, 12 ICs, 9 resistors, 7 connectors, 2 jumpers and 1 switch.
It belongs with the retro computing and power & battery designs in this gallery.
From the project
An easy to build Zilog Z80 based single board computer
For the version 1.0 schematic, PCB layout, and bill of materials please refer to tag v1.0
Pin | Signal Name | Description ----------------------- | ----------- | ----------- Tip (the inner contact) | VCC | Positive terminal - +5V Barrel / sleeve | GND | Negative terminal - ground
Important: If the SRAM battery backup is not desired, short J4 with a jumper. Do not leave this connector open.
Main components on the Easy z80
Easy z80 bill of materials (BOM)
58 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Z84C00 | IC_DIP40_600 | U1 |
| 1 | Z84C30 | IC_DIP28_600 | U2 |
| 1 | Z84C40 | IC_DIP40_600 | U3 |
| 1 | AS6C4008 | IC_DIP32_600 | U4 |
| 1 | SST39SF040 | IC_DIP32_600 | U5 |
| 1 | MAX693 | IC_DIP16_300 | U6 |
| 2 | MAX232A | IC_DIP16_300 | U7, U8 |
| 1 | ATF16V8B | IC_DIP20_300 | U9 |
| 2 | 74HC670 | IC_DIP16_300 | U10, U11 |
| 1 | 74HC74 | IC_DIP14_300 | U12 |
| 1 | POWER | Conn_Power_Jack_Circular_Pads | J1 |
| 1 | SERIAL_A | Conn_Dsub_DE9M | J2 |
| 1 | SERIAL_B | Conn_Dsub_DE9M | J3 |
| 1 | VBAT | Conn_Friction_Lock_2P_2.54mm | J4 |
| 1 | RC2014_BUS | Conn_Pin_Header_39x1_2.54mm | J5 |
| 1 | RC2014_EXT | Conn_Pin_Header_10x1_2.54mm | J6 |
| 1 | RC2014_SPARE | Conn_Pin_Header_5x1_2.54mm | J7 |
| 1 | CH_A_CLK | Conn_Pin_Header_3x1_2.54mm | JP1 |
| 1 | CH_B_CLK | Conn_Pin_Header_3x1_2.54mm | JP2 |
| 1 | 10MHz | OSC_Half_Can_DIP8 | QG1 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1.8432 MHz | OSC_Half_Can_DIP8 | QG2 |
| 1 | 2k | Trimmer_Bourns_3362P | RV1 |
| 1 | RESET | Switch_Tactile_6mm_Right | SW1 |
| 1 | POWER | LED_3mm | D1 |
| 22 | 100n | Cap_Cer_508 | C1, C2, C3, C4, C5, C6, C7, C8 +14 |
| 1 | 47u | Cap_Elec_Radial_6.3mm | C24 |
| 1 | 470 | Res_762 | R1 |
| 3 | 10k | Res_762 | R2, R3, R4 |
| 1 | 29.4k | Res_762 | R5 |
| 3 | 4.7k | Conn_SIL5 | RN1, RN2, RN3 |
| 1 | 4.7k | Conn_SIL9 | RN4 |
Easy z80 design files
The KiCad project lives in the skiselev/easy_z80 repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/Easy_Z80.kicad_pcb
Easy z80: common questions
How big is the Easy z80 PCB?
The Easy z80 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Easy z80?
58 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the Easy z80 design files?
From the skiselev/easy_z80 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Easy z80 design in my own project?
Yes, under the terms of its GPL-3.0 license, which skiselev chose for the repository.
Similar boards
Stack chan
stack-chan
50 × 50 mm33 parts2LApache-2.01.7k
Display Carrier
AxxAxx
35.6 × 58.2 mm5 parts2LGPL-3.01.7k
ControllerCurrentShuntAddOn
stuartpittaway
26 × 16.9 mm9 parts2LCC-BY-NC-4.01.1k
Module 16S PassiveBalanceAddOn
61 × 74 mm86 parts2LCC-BY-NC-4.01.1k
TemperaturePCB PANEL
116 × 75.5 mm178 parts2LCC-BY-NC-4.01.1k
ProgrammingAdapter
10.5 × 83 mm3 parts2LCC-BY-NC-4.01.1k