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Z80PSG1

lynchaj·nhyodyne·Z80PSG1/Z80PSG1.kicad_pcb

Z80PSG1 PCB layout, top view — open source board by lynchaj
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About the Z80PSG1 PCB

Z80PSG1 is an open source PCB design by lynchaj, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 64 components from 35 distinct parts.

Other key parts include the 74LS244, 74LS245, 74LS688, 74LS139 and 74LS02. By type, the board carries 19 capacitors, 16 resistors, 11 ICs, 10 connectors, 3 diodes and 1 jumper.

It belongs with the retro computing and audio designs in this gallery.

From the project

Modular Backplane Computer

Provides GI AY-3-8910 Programmable Sound Generator with three channel FM synthesis

Atari or MSX compatible joysticks or paddles

JP1 AY-3-8910 test input pins 1-2, default is none

J5 Pins 1-2 all channels merged into channel C, Pins 3-4 all channels merged into channel A, default is none

pins 5-7 audio oscillator /2 pins 7-9 audio oscillator /8 pins 6-8 audio oscillator /1 pins 8-10 audio oscillator /4

Main components on the Z80PSG1

74LS24474LS24574LS68874LS13974LS0274LS93AY-3-891074LS22174LS1743.5795 MHz

Z80PSG1 bill of materials (BOM)

64 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
74LS244
U1, U3
1
74LS245
U2
1
74LS688
U4
1
74LS139
U5
1
74LS02
U6
1
74LS93
U7
1
AY-3-8910
U8
1
74LS221
U9
1
74LS174
U10
1
3.5795 MHz
U11
1
POT/VCC
J1
1
JOY/VCC
J2
1
POT_ENB
J3
1
JOY_ENB
J4
1
AY3-CFG
J5
1
SPARES
P2
1
Z80 BUS BACKPLANE
P3
1
JYSTK-A
P6
1
JYSTK-B
P7
1
SOUND
P8
Show 15 more
QtyPartRefs
1
TEST2
JP1
1
10K
RR1
2
5K
RV1, RV2
1
IO PORT ADDR
SW1
3
LED
D1, D2, D3
11
0.1u
C1, C2, C3, C4, C5, C6, C7, C8 +3
4
10u
C10, C11, C15, C16
2
270p
C13, C14
2
0.01u
C17, C18
3
470
R1, R2, R10
3
1000
R3, R4, R5
4
10K
R6, R7, R8, R9
2
1M
R11, R12
2
2200
R13, R14
2
0
R15, R16

Z80PSG1 design files

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

Z80PSG1: common questions

How big is the Z80PSG1 PCB?

The Z80PSG1 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Z80PSG1?

64 components, from 35 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Z80PSG1 design files?

From the lynchaj/nhyodyne repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Z80PSG1 design in my own project?

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

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