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Z80 schematics

roberto314·Unicomp2·Z80_Board/z80_schematics/z80_schematics.kicad_pcb

Z80 schematics PCB layout, top view — open source board by roberto314

About the Z80 schematics PCB

Z80 schematics is an open source PCB design by roberto314, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 62 components from 21 distinct parts.

Other key parts include the XC9572VQ44, SN74LVC245ANSR, SN74LVCC3245ANSR, SN74LVC125AD and Z80CPU. By type, the board carries 28 connectors, 13 resistors, 8 ICs, 8 capacitors and 5 jumpers.

It belongs with the retro computing 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

Z80 schematics, from the project README
From the project README

Main components on the Z80 schematics

XC9572VQ44SN74LVC245ANSRSN74LVCC3245ANSRSN74LVC125ADZ80CPU

Z80 schematics bill of materials (BOM)

62 components, 21 distinct parts.

QtyPartRefs
1
XC9572VQ44
U1
3
SN74LVC245ANSR
U2, U3, U21
1
SN74LVCC3245ANSR
U5
2
SN74LVC125AD
U8, U9
1
Z80CPU
U10
4
BUS
J1, J2, J3, J4
2
Conn_01x09
J5, J8
2
Conn_01x08
J6, J7
8
.
J9, J12, J13, J14, J15, J16, J17, J32
2
Conn_01x01
J10, J11
2
Conn_01x12
J20, J21
5
Conn_02x36_Counter_Clockwise
J22, J23, J24, J25, J26
2
Conn_01x06
J30, J31
1
Conn_02x06_Odd_Even
J35
1
Jumper_3_Open
JP8
1
Clock
JP9
2
VCC
JP10, JP29
1
Write
JP11
8
100n
C1, C2, C3, C4, C5, C6, C7, C8
7
10k
R1, R2, R8, R9, R10, R11, R12
Show 1 more
QtyPartRefs
6
2k2
R20, R21, R22, R23, R24, R25

Z80 schematics design files

The KiCad project lives in the roberto314/Unicomp2 repository on GitHub; these links point at the commit this page was built from.

Z80 schematics: common questions

How big is the Z80 schematics PCB?

The Z80 schematics measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Z80 schematics?

62 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Z80 schematics design files?

From the roberto314/Unicomp2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Z80 schematics design in my own project?

The repository has no license, so all rights stay with roberto314. Use it as a reference, and ask the author before reusing the design.

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