HardLabs

P8x io card

ksr·p8x·hardware/io-card/kicad/p8x-io-card.kicad_pcb

P8x io card PCB layout, top view — open source board by ksr

About the P8x io card PCB

P8x io card is an open source PCB design by ksr, published on GitHub. It is a 4-layer board measuring 280 × 140 mm, with 62 components from 33 distinct parts.

Other key parts include the 74HCT30, 74HCT138, 74HCT32, 74HCT08 and 74HCT161. By type, the board carries 22 capacitors, 18 ICs, 2 crystals, 2 connectors, 2 jumpers and 2 LEDs.

From the project

Generated by generators/genkicad.py from the canonical geneagle netlist (CARDS["io-card"]), same standard as the memory card: 4-layer (F/B signals, In1=GND, In2=VCC planes), a bypass cap above each IC, a labelled LED/jumper bank, part values on silk. Routed with Freerouting. GENE

Generated by generators/genkicad.py from the canonical geneagle netlist (CARDS["io-card"]), same standard as the memory card: 4-layer (F/B signals, In1=GND, In2=VCC planes), a bypass cap above each IC, a labelled LED/jumper bank, part values on silk. Routed with Freerouting. GENERATORS ARE CANON -- edit genkicad.py and re-run generators/buildkicadcard.sh io-card`.

Main components on the P8x io card

74HCT3074HCT13874HCT3274HCT0874HCT161MAX23274HCT24474HCT374685074HCT00DS130274HCT14

P8x io card bill of materials (BOM)

62 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HCT30
U1
3
74HCT138
U2, U3, U4
1
74HCT32
U5
1
74HCT08
U6
1
74HCT161
U7
1
MAX232
U8
4
74HCT244
U9, U11, U12, U13
1
74HCT374
U10
2
6850
U14, U17
1
74HCT00
U15
1
DS1302
U16
1
74HCT14
U18
1
2.4576MHZ
X2
1
32.768KHZ
X3
1
MABC96R
J1
1
1x3
J3
1
CR2032
BT1
1
SERIAL1
DB9A
1
SERIAL2
DB9B
1
S1 SWAP
JP1
Show 13 more
QtyPartRefs
1
S2 SWAP
JP2
1
8-LED BAR
LA1
1
A0-7
LM1
1
A8-15
LM2
1
D0-7
LM3
4
8X330R
RL1, RM1, RM2, RM3
1
1K
RP1
1
INPUT
SW1
1
GRN
LED3
1
YEL
LED4
4
1uF
C2, C3, C4, C5
18
100nF
C6, C7, C8, C9, C10, C11, C12, C13 +10
1
1K
R4

P8x io card design files

The KiCad project lives in the ksr/p8x repository on GitHub; these links point at the commit this page was built from.

P8x io card: common questions

How big is the P8x io card PCB?

The P8x io card measures 280 × 140 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the P8x io card?

62 components, from 33 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 P8x io card design files?

From the ksr/p8x repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the P8x io card design in my own project?

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

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